    [From the U.S. Government Printing Office, www.gpo.gov]

          4-1--esapeake Bay Tidal Flooding Study
          ,al"PENDIX D - SOCIAL AND CULTURAL RESOURCES
          A`PENDIX E - ENGINEERING DESIGN AND COST ESTIMATES
          Ab-PENDIX F -ECONOMICS

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          Chesapeake. Bay Tidal Flooding Study
          APPENDIX D - SOCIAL AND CULTURAL RESOURCES
          APPENDIX E - ENGINEERING DESIGN AND COST ESTIMATES
          APPENDIX F -ECONOMICS

                                     10

                                                COASTAL ZONE

                                            INFORMATION CENTER

          US Army Corps
          of Engineers
          Baltimore District                                                     Sep'tembei 1984

                                            CHESAPEAKE BAY

                                         TIDAL FLOODING STUDY

                                               APPENDIX D

                                    SOCIAL AND CULTURAL RESOURCES

                                          Department of the Army
                                     Baltimore District, Corps of Engineers
                                            Baltimore, Maryland
                                              September 1984

                                                            FOREWORD

                  This is one of the volumes comprising the final report on the Corps of Engineers,
                  Chesapeake Bay Study. The report represents the culmination of many years of study of
                  the Bay and its associated social, economic, and environmental processes and resources.
                  The overall study was done in three distinct developmental phases. A description is
                  provided below of each study phase, followed by a description of the organization of the
                  report.
     7
                  The initial phase of the overall program involved the inventory and assessment of the
                  existing physical, economic, social, biological, and environmental conditions of the 6ay.
                  The results of this effort were published in a seven volume document titled Chesapeake
                  Bay Existing Conditions Report released in 1973. This was the first publication to
                  present a comprehensive survey of the tidal Chesapeake and its resources as a single
                  entity.

                  The second phase of the program focused on projection of water resource requirements in
                  the Bay Region for the year 2020. Completed in 1977, the Chesapeake Bay Future
                  Conditions Report documents the results of that work. The 12-volume report contains
                  projections for resource categories such as navigation, recreation, water supply, water
                  quality, and I'and use. Also presented are assessments of the capacities of the Bay
                  system to meet the identified future requirements, and an identification of problems and
                  conflicts that may occur with unrestrained growth in the future.

                  In the third and final study phase, two resource problems of particular concern in
                  Chesapeake Bay were addressed in detail: low freshwater inflow and tidal flooding. In
                  the Low Freshwater Inflow Study, results of testing on the Chesapeake Bay Hydraulic
                  Model were used to assess the effects on the Bay of projected future depressed
                  freshwater inflows. Physical and biological changes were quantified and used in
                  assessments of potential social, economic, and environmental impacts. The Tidal
                  Flooding Study included development of preliminary stage-damage relationships and
                  identification of Bay communities in which structural and nonstructural measures could
                  be beneficial.

                  The final report of the Chesapeake Bay Study is composed of three major elements:
                  (1) Summary, (2) Low Freshwater Inflow Study, and (3) Tidal Flooding Study. The
                  Chesapeake Bay Study Summary Report includes a description of the results, findings,
                  and recommendations of all the above described phases of the Chesapeake Bay Study. It
                  is incorporated in four parts:

                              Summary Report
                              Supplement A- Problem Identification
                              Supplement B - Public Involvement
                              Supplement C - Hydraulic Model

                  The Low Freshwater Inflow Study consists of a Main Report and six supporting
                  appendices. The report includes:

                              Main Report
                              Appendix A -- Problem Identification
                              Appendix B - Plan Formulation
                              Appendix C -- Hydrology
                              Appendix D - Hydraulic Model Test

                             Appendix E - Biota
                             Appendix F - Map Folio

                  The Tidal Flooding Study consists similarly of a Main Report and six appendices. The
                  report includes:

                             Main Report
                             Appendix A - Problem Identification
                             Appendix B - Plan Formulation, Assessment, and Evaluation
                             Appendix C - Recreation and Natural Resources
                             Appendix D - Social and Cultural Resources
                             Appendix E - Engineering,' Design, and Cost Estimates
                             Appendix F - Economics

                                          CHESAPEAKE BAY TIDAL FLOODING STUDY

                                     APPENDIX D - SOCIAL AND CULTURAL RESOURCES

                                                        TABLE OF CONTENTS

                   Item                                                                                        PMe

                   Introduction                                                                                 D-1
                   Maryland Flood-Prone Communities                                                             D-1
                      Cambridge, Maryland                                                                       D-I
                            Demographic Characteristics                                                         D-I
                            Occupational Distribution                                                           D-3
                            Income Characteristics                                                              D-3
                            Educational Characteristics                                                         0-5
                            Housing Characteristics                                                             D-5
                            Industrial Employment                                                               D-5
                            Transportation                                                                      0-6
                                  Railroads                                                                     D-6
                                  Highways                                                                      D-6
                                  Truck Service                                                                 D-6
                                  Bus Service                                                                   0-6
                                  Water Transportation                                                          D-6
                                  Air Service                                                                   D-7
                            Communications                                                                      0-8
                                  Postal Facilities                                                             D-8
                                  Telephone Services                                                            D-8
                                  Radio and Television                                                          D-8
                                  Newspapers                                                                    D-8
                            Utilities                                                                           D-8
                                  Electricity and Gas                                                           D-8
                                  Water and Sewerage                                                            D-9
                            County Services                                                                     D-9
                            Educational Services                                                                D-9
                            Health Services                                                                     D-9
                            Cultural Institutions                                                              D-10
                                  Libraries and Churches                                                       D-10
                                  Historic Sites                                                               D-10
                            Land Use                                                                           D-10
                                  Existing Land Use                                                            D-10
                                  Future Land Use                                                              D-11
                      Crisfield, Maryland                                                                      D-12
                            Demographic Characteristics                                                        D- 12
                            Occupational Distribution                                                          D-14
                            Income Characteristics                                                             D- 14
                            Educational Characteristics                                                        D-14
                            Housing Characteristics                                                            D-14
                            Industrial Employment                                                              D-14
                            Transportation                                                                     D-16
                                  Railroads                                                                    0-16
                                  Highways                                                                     D-16
                                  Truck Service                                                                D-17

                                                                    i

                                                          TABLE OF CONTENTS (Cont'd)
                         Item

                                                                                                                           Page
                                         Bus Service
                                        Water Transportation                                                               D-17
                                        Air Service                                                                        D-17
                                  Communications                                                                           D-17
                                        Postal Facilities                                                                  D-18
                                        Telephone Services                                                                 D-18
                                        Radio and Television                                                               D-18
                                       Newspapers                                                                          D-18
                                 Utilities                                                                                 D-18
                                       Electricity and Gas                                                                 D-19
                                       Water and Sewerage                                                                  D-19
                                County Services                                                                            D-19
                                Educational Services                                                                       D-19
                                Health Services                                                                           D-20
                                Cultural Institutions                                                                     D-20
                                      Libraries and Churches                                                              D-20
                                      Historic Sites                                                                       D-20
                                Land Use                                                                                   D-20
                          Poromoke City, Maryland                                                                          D-20
                               Demographic Characteristics                                                                 D-21
                               Occupational Distribution                                                                   D-21
                               Income Characteristics                                                                      D-22
                               Educational Characteristics                                                                 D-23
                               Housing Characteristics                                                                     D-23
                              Industrial Employment                                                                        D-23
                              Transportation                                                                               D-23
                                     Railroads                                                                             D-23
                                     Highways                                                                              D-23
                                    Truck Service                                                                          D-23
                                    Bus Service                                                                           D-25
                                    Water Transportation                                                                  D-25
                                    Air Service                                                                            D-25
                             Communications                                                                                D-26
                                    Postal Facilities                                                                     D-26
                                    Telephone Services                                                                     D-26
                                   Radio and Television                                                                    D-26
                                   Newspapers                                                                              D-26
                             Utilities                                                                                     D-27
                                   Electricity and Gas                                                                     D-27
                                   Water and Sewerage                                                                      D-27
                            County Services                                                                                D-27
                            Educational Services                                                                           D-27
                            Health Services                                                                                D-27
                            Cultural Institutions                                                                          D-28
                                  Libraries and Churches                                                                   D-28
                                                                                                                           D-28

                                                   TABLE OF CONTENTS (Cont'd)

                  Item                                                                                         Page

                                  Historic Sites                                                               D-28
                           Land Use                                                                            D-28
                                  Existing Land Use                                                            D-28
                                  Future Land Use                                                              D-30
                      Rock Hall, Maryland                                                                      D-31
                           Demographic Characteristics                                                         D-31
                           Occupational Distribution                                                           D-33
                           Income Characteristics                                                              D-33
                           Educational Characteristics                                                         D-33
                           Housing Characteristics                                                             D-33
                           Industrial Employment                                                               D-33
                           Transportation                                                                      D-35
                                  Railroads                                                                    D-35
                                  Highways                                                                     D-35
                                  Truck Service                                                                D-36
                                  Bus Service                                                                  D-36
                                  Water Transportation                                                         D-36
                                  Air Service                                                                  D-37
                           Communirations                                                                      D-37
                                  Postal Facilities                                                            D-37
                                  Telephone Services                                                           D-37
                                  Radio and Television                                                         D-37
                                  Newspapers                                                                   D-38
                           Utilities                                                                           D-38
                                  Electricity and Gas                                                          D-38
                                  Water and Sewerage                                                           D-38
                           County Services                                                                     D-38
                           Educational Services                                                                D-39
                           Health Services                                                                     D-39
                           Cultural Institutions                                                               D-39
                                  Libraries and Churches                                                       D-39
                                  Historic Sites                                                               D-39
                           Land Use                                                                            D-40
                                  Existing Land Use                                                            D-40
                                  Future Land Use                                                              D-41
                      St. Michaels, Maryland                                                                   D-42
                           Demographic Characteristics                                                         D-42
                           Occupational Distribution                                                           0-43
                           Income Characteristics                                                              0-43
                           Educational Characteristics                                                         D-45
                           Housing Characteristics                                                             D-45
                           Industrial Employment                                                               D-45
                           Transportation                                                                      D-46
                                  Railroads                                                                    D-46
                                  Highways                                                                     D-46

                                                      TABLE OF CONTENTS (Cont'd)

                      Item                                                                                       Page

                                     Truck Service                                                               D-47
                                     Bus Service                                                                 D-47
                                     Water Transportation                                                        D-47
                                     Air Service                                                                 D-47
                              Communi    cations                                                                 L-1-48
                                     Postal Facilities                                                           D-48
                                     Telephone Services                                                          D-48
                                     Radio and Television                                                        D-48
                                     Newspapers                                                                  D-48
                              Utilities                                                                          D-48
                                     Electricity and Gas                                                         D-48
                                     Water and Sewerage                                                          D-49
                              County Services                                                                    D-49
                              Educational Services                                                               D-49
                              Health Services                                                                    D-49
                              Cultural Institutions                                                              D-50
                                     Libraries and Churches                                                      D-50
                                     Historic Sites                                                              D-50
                              Land Use                                                                           D-50
                                     Existing Land Use                                                           D-50
                                     Future Land Use                                                             D-51
                         Snow Hill, Maryland                                                                     D-51
                              Demographic Characteristics                                                        D-51
                              Occupational Distribution                                                          D-53
                              Income Characteristics                                                             D-53
                              Educational Characteristics                                                        D-53
                              .Housing Characteristics                                                           D-53
                              Industrial Employment                                                              D-53
                              Transportation                                                                     D-55
                                     Railroads                                                                   D-55
                                     Highways                                                                    D-55
                                     Truck Service                                                               D-56
                                     Bus Service                                                                 D-56
                                     Water Transportation                                                        D-56
                                     Air Service                                                                 D-56
                              Communications                                                                     D-57
                                     Postal Facilities                                                           D-57
                                     Telephone Services                                                          0-57
                                     Radio and Television                                                        0-57
                                     Newspapers                                                                  D-57
                              Utilities                                                                          D-57
                                     Electricity and Gas                                                         D-57
                                     Water and Sewerage                                                          D-57
                              County Services                                                                    D-58
                              Educational Services                                                               D-58

                                                                      iv

                                                   TABLE OF CONTENTS (Contd)

                  Item                                                                                           Page

                           Health Services
                           Cultural Institutions
                                  Libraries and Churches                                                      D-58
                                  Historic Sites                                                              D-59
                           Land Use                                                                           D-59
                                  Existing Land Use                                                           D-59
                                  Future Land Use                                                             D-59
                      Tilghman Island, Maryland                                                              D-60
                           Demographic Characteristics                                                        D-60
                           Occupational Distribution                                                          D-61
                           Income Characteristics                                                             D-63
                           Educational Characteristics                                                        D-63
                           Housing Characteristics                                                            D-63
                           Industrial Employment                                                              D-63
                           Transportation                                                                     D-63
                                  Railroads                                                                   D-63
                                  Highways                                                                    D-64
                                  Truck Service                                                               D-64
                                  Bus Service                                                                 D-64
                                  Water Transportation                                                        D-65
                                  Air Service                                                                 D-65
                           Communications                                                                     D-65
                                  Postal Facilities                                                           D-65
                                  Telephone Services                                                          D-65
                                  Radio and Television                                                        D-66
                                  Newspapers                                                                  D-66
                           Utilities                                                                          D-66
                                  Electricity and Gas                                                         D-66
                                  Water and Sewerage                                                          D-66
                           County Services                                                                    D-67
                           Educational Services                                                               D-67
                           Health Services                                                                    D-67
                           Cultural Institutions                                                              D-67
                                  Libraries and Churches                                                      D-67
                                  Historic Sites                                                              D-68
                           Land Use                                                                           D-63
                  Virginia Flood-Prone Communities                                                            D-68
                      Cape Charles, Virginia                                                                  D-68
                           Demographic Characteristics                                                        D-68
                           Income Characteristics                                                             D-69
                           Housing and Municipal Services                                                     D-69

                                                                   v

                                                    TA13LE OF CONTENTS (Cont'd)

                     Items                                                                                    Page

                         Hampton Roads, Virginia                                                              D-70
                              Demographic Characteristics                                                     D-70
                              Income Characteristics                                                          D-71
                              Housing Characteristics                                                         D-71
                              Employment Characteristics                                                      D-71
                         Poquoson, Virginia                                                                   D-73
                              Demographic Characteristics                                                     D-73
                              Occupational Distribution                                                       D-73
                              Income Characteristics                                                          D-74
                              Housing Characteristics                                                         0-74
                         Tangier Island, Virginia                                                             D-75
                         West Point, Virginia                                                                 D-75
                              Demographic Characteristics                                                     D-75
                              Occupational Distribution                                                       D-76
                              Income Characteristics                                                          D-76
                              Housing Characteristics                                                         D-76
                              Transportation                                                                  D-76
                                    Railroads                                                                 D-76
                                    Highways                                                                  D-76
                                    Bus Service                                                               D,-76
                                    Water Transportation                                                      D-76

                         References                                                                           D-77

                                                            LIST OF TABLES

                     Number                                    Title.                                         Page

                     D-1              Tidal Flood-Prone Communities: Maryland and Virginia                     D-2
                     D-2              Historical Population for the U.S., Maryland, Dorchester
                                        County, and Cambridge                                                  0_2
                     D-3              Population Projections for Cambridge and Dorchester County               0-3
                     D-4              Demographic and Socio-Economic Characteristics for
                                        Cambridge, Dorchester County, and Maryland                             D-4
                     D-5              Cambridge 1970 Industrial Employment                                     D-5
                     D-6              Cambridge Harbor 1981 Waterborne Commerce                                D-7
                     D-7              Land Use in Cambridge, Maryland                                         0-10
                     D-8              Historical Population for the U.S., Maryland, Somerset
                                        County, and Crisfield                                                 D-13
                     D-9              Population Projections for Crisfield and Somerset County                D-0
                     D-10             Demographic and Socio-Eronomic Characteristics for
                                        Crisfield, Somerset County, and Maryland                              D-15
                     D-11             Crisfield 1970 Industrial Employment                                    D-16
                     D- 12            Crisfield Harbor 1981 Waterborne Commerce                               D-18

                                                                    vi

                                                LIST OF TABLES (Cont'd)

                 Number                                Title

                 D- 13          Historical Population for the U.S., Maryland, Worcester.
                                  County, and Pocomoke City                                       D-22
                 D- 14          Population Projections for Pocomoke City and Worcester
                                  County                                                          D-22
                 D-15           Demographic and Socio-Economic Characteristics for
                                  Pocomoke City, Worcester County, and Maryland                   D-24
                 D-16           Pocomoke City 1970 Industrial Employment                          D-25
                 D-17           Pocomoke River 1981 Waterborne Commerce                           D-26
                 D-18           Pocomoke City Land Use                                            D-29
                 D-19           Historical Population for the U.S.,. Maryland, Kent
                                  County, and Rock Hall                                           D-32
                 D-20           Population Projections for Rock Hall and Kent County              D-32
                 D-21           Demographic and 5ocio-Economic Characteristics for
                                  Rock Hall, Kent County,.and Maryland                            D-34
                 D-22           Rock Hall 1970 Industrial Employment                              D-35
                 D-23           Rock Hall 1980 Waterborne Commerce                                D-37
                 D-24           Rock Hall and Kent County Land Use                                D-40
                 D-25           Historical Population for the U.S., Maryland,
                                  Talbot County, and St. Michaels                                 D-42
                 D-26           Population Projections for St. Michaels and Talbot County         D-43
                 D-27           Demographic and Socio-Economic Characteristics for
                                  St. Michaels, Talbot County, and Maryland                       D-44
                 D-28           St. Michaels 1970 Industrial Employment                           D-45
                 D-29           St. Michaels 1981 Waterborne Commerce                             D-47
                 D-30           Land Use Within Corporate Limits of St. Michaels                  D-51
                 D-31           Historical Population for the U.S., Maryland, Worcester
                                  County, and Snow Hill                                           0-52
                 D-32           Population Projections for Snow Hill and Worcester County,        D-52
                 D-33           Demographic and Socio-Economic Characteristics for
                                  Snow Hill, Worcester County, and Maryland                       0-54
                 D-34           Snow Hill 1970 Industrial Employment                              D-55
                 D-35           Pocomoke River 1981 Waterborne Commerce                           D-56
                 D-36           Snow Hill Existing Land Use                                       D-59
                 D-37           Historical Population for the U.S., Maryland, Talbot
                                  County, and Bay Hundred                                         D-61
                 D-38           Population Projections for the Tilghman Island Area and
                                  Talbot County                                                   D-61
                 D-39           Demographic and Socio-Economic Characteristics for
                                  Tilghman Island, Talbot County, and Maryland                    D-62
                 D-40           Tilghman Island 1970 Industrial Employment                        D-64
                 D-41           Knapps Narrows 1981 Waterborne Commerce                           D-65

                                                           vii

                                                  LIST OF TABLES (Cont'd)

                   Number                                Title                                     fMe

                   D-42            Northampton County Historical and Projected Population          D-69
                   D-43            Virginia Department of Planning and Budget Population
                                    Projections for Hampton Roads                                  D-70
                   D-44            Hampton Roads Comparative Population Projections                D-70
                   D-45            Hampton Roads Per Capita Income                                 0-71
                   D-46            Projected Employment for the Hampton Roads Area                 0-72
                   D-47            OBERS Employment Projections                                    0-72
                   D-48            OBERS County Level Employment by Sector for Five-City
                                    Area                                                           D-72
                   D-49            Population Projections for Poquoson, York County, and
                                    the Newport- News- Hampton SMSA                                D-74
                   D-50            King William County Historical and Projected Population         D-75

                                                            viii

                                                         APPENDIX D

                                           SOCIAL AND CULTURAL RESOURCES

                                                       INTRODUCTION

                 The purpose of this appendix is to provide information on the social and cultural features of
                 the communities examined as part of the Chesapeake Bay Tidal Flooding Study. These
                 communities are listed in Table D-1 while the rationale for their inclusion is provided in
                 Appendix A - Problem Identification. Included in this Social and Cultural Resources
                 Appendix are discussions on demographic characteristics, occupational distributions,
                 income, housing, and labor force estimates. Also included are overviews on transportation
                 and communications, municipal services, cultural institutions, and land use for the areas
                 studied.

                 Much of the information on the demographic, occupational, income, housing, and labor force
                 characteristics for communities with fewer than 2,500 residents was provided by the Fifth
                 Count of the 1970 Census. It should be noted that the data for these smaller communities
                 are subject to variability due to the sampling techniques involved in this count. Change
                 errors may be large because of the numbers involved. Because of this variability the Census
                 Bureau has never published sample data for areas generally smaller than census tracts. Also
                 data on specific sectors of industrial employment such as the fisheries sector are not
                 available from the Fifth Count and therefore had to be addressed on a regional basis.
                 Information on transportation, communications, and municipal services came primarily from
                 Community Economic Inventory reports prepared for the various counties. Land use data
                 for the counties and communities came from the comprehensive plans of the respective
                 communities and counties. Where possible, percentages of major land use categories were
                 provided for the communities.

                 Demographic projections for the counties and the communities, where possible, were based
                 upon OBERS Series E regional projections. Linear regression techniques based upon
                 historical trends of the population were used to provide estimates for the communities.

                 Information on archeological sites for the Maryland communities was provided by Mr. Tyler
                 Bastian, the State Archeologist, of the Maryland Geological Survey. The information
                 addressed the communities specifically and covered an area approximately one mile outside
                 the town limits. The Maryland Historical Trust was helpful in providing information on
                 historical structures located within the communities. Though many of these structures are
                 ronsidered to be of historical significance to the Maryland Historical Trust, few have been
                 placed in the National Register of Historic Places.

                                         MARYLAND FLOOD-PRONE COMMUNITIES

                 CAMBRIDGE, MARYLAND

                 DEMOGRAPHIC CHARACTERISTICS

                 Cambridge, Maryland, is the county seat of Dorchester County and is located in the
                 northern part of the County. According to the 1970 Census, the population of Cambridge
                 was 11,595 with a median age of 33.1 years. Of the total population, 48 percent was age 35
                 years or older. These age figures compare with state figures indicating a median age of
                 27.1 years with 40 percent of the state population 35 years or greater. Dorchester County

                                                             D- I

                                                                TABLE D-1

                                         TIDAL FLOOD-PRONE COMMUNITIES: MARYLAND
                                                              AND VIRGINIA

                          MARYLAND COMMUNITIES                                  VIRGINIA COMMUNITIES

                                Cambridge                                           Cape Charles
                                Crisfield                                          Hampton Roads
                            Pocomoke City                                             Poquoson
                                Rock Hall                                           Tangier Island
                              St. Michaels                                           West Point
                                Snow Hill
                            Tilghman Island

                     figures align themselves closely with those of Cambridge. This is to be expected
                     considering that the population of Cambridge constituted almost 40 percent of the 1970 and
                     1980 County population. Historical population trends for Cambridge, Dorchester County,
                     the State of Maryland, and the United States are displayed in Table D-2.

                                                                  TABLE D-2

                                         HISTORICAL POPULATION FOR THE U.S., MARYLAND,
                                                DORCHESTER COUNTY AND CAMBRIDGE
                                                                 (1940 - 1980)

                                              1940              1950            1960             1970             1980

                     UNITED STATES           132,165,000    151,326,000      179,323,000      203,212,000      226,504,825
                     % change                          -            14.5             18.5             13.3             11.5

                     MARYLAND                  12821,000       2,343,000        3,101,000        3,922,400        4,216,941
                     % change                          -            28.6             32.3             26.5               7.5

                     DORCHESTER COUNTY 28@006                     27,185           29,666           29,405           30,623
                     % change                          -            -2.9              9.1             -0.8               4.1

                     CAMBRIDGE                    10,102          10@351           12,239           11,595           11,703
                     % change                          -             2.4             18.2             -5.2               0.9

                     Based upon OBERS Series E population projections for the subregion (Calvert, Caroline,
                     Dorchester, Kent, Queen Annes, Somerset, Talbot, Wicomico, and Worcester Counties,
                     Maryland, and Sussex County, Virginia), the estimated population growth for Dorchester
                     County and for Cambridge is shown in Table D-3. Table D-3 also provides population
                     projections based on a simple regression technique. The "regression" projections are
                     provided for Cambridge and all other communities for comparative purposes as the
                     disaggregation and reaggregation of OBERS data to the community level may be
                     somewhat suspect, particularly for the small communities.

                                                                  D-2

                                                         TABLE D-3

                                             POPULATION PROJECTIONS FOR
                                        CAMBRIDGE AND DORCHESTER COUNTY
                                                        (1980 - 2020)

                                                  1980*            1990             2000          2020

                 Dorchester County              30,623           31,400          33t100        ^200

                 Cambrid e                      11,703           13,000          14,000        17,100
                       s al
                 (Serie E

                 Cambridge                      11,703           13,300          13,900        15,200
                 (Regression)

                   *The 1980 populations presented for Cambridge and Dorchester County are the final
                   counts as determined by the Bureau of the Census.

                 OCCUPATIONAL DISTRIBUTION

                 The work force in Cambridge is highly concentrated in the category of Operatives with
                 almost 29 percent of the work force aged 16 years or older employed in this category.
                 One would expect a similar distribution for the county and in fact this does occur.
                 County figures show that the category of Operatives constitutes almost 29 percent of the
                 work force aged 16 years or older. However, state figures shown in Table D-4 indicate
                 that the Sales and Clerical occupational grouping employs the largest percentage of the
                 work force with Operatives ranked fourth.

                 Unemployment in Cambridge in 1970 was approximately 5 percent which compares with a
                 slightly higher County total of 6.2 percent and a State figure of 3.2 percent.

                 INCOME CHARACTERISTICS

                 Individual median income in the community of Cambridge in 1970 was $2,252. Median
                 family income was $7,394. Nearly 15.9 percent of the families had an income below the
                 poverty level. County figures on 1970 median income are shown in Table D-4. These
                 figures indicate a slightly lower individual median income of $2,094 with median family
                 income slightly higher at $7,702. Approximately 14.8 percent of the families were
                 defined as being at or below the poverty level. Both community and County figures
                 regarding income fall well below State figures as shown in Table D-4 while the
                 percentage of families defined as being at or below the poverty level is significantly
                'higher at both the community and the county level.

                                                              D-3

                                                                       TABLE D-4

                                           DEMOGRAPHIC AND SOCIO-ECONOMIC CHARACTERISTICS
                                          FOR CAMBRIDGE, DORCHESTER COUNTY AND MARYLAND
                                                                          (1970)

                     DEMOGRAPHIC CHARACTERISTICS CAMBRIDGE DORCHESTER COUNTY MARYLAND

                     Population                                        11,595                  29,405             3,922,400
                     Median Age                                           33.1                    34.1                 27.1
                     Percent 35 years or older                            48.0                    49.1                 40.0

                     OCCUPATIONAL DISTRIBUTION*

                     Prof. Managerial                                     17.9                    16.1                 27.6
                     Craftsmen, Foremen                                   12.5                    14.8                 13.7
                     Operatives, (incl. transportation)                   28.6                    28.7                 13.3
                     Labor (incl. farm)                                     7.9                     9.8                 4.6
                     Farm Managers                                            -                     2.3                 0.7
                     Services                                             16.4                    12.9                 11.6
                     Sales and Clerical                                   16.6                    '15.1                28.1
                     Unemployed                                             5.0                     6.2                 3.2

                     INCOME CHARACTERISTICS

                     Median Individual Income                          $2,252                  @2,094               .$3,099
                     Median Family Income                              $7,394                  V,702                @11,063
                     Percent of families                                  15.9                    14.8                  7.7
                       below poverty level

                     EDUCATIONAL CHARACTER15TIC5

                     Percent of individuals 25 years or                   23.8                    28.5                 52.3
                       older with High School completion

                     HOUSING CHARACTERISTICS

                     Year-round Housing Units                            4,414                 10,841             1,234,469
                     Median gross value of rent                  $ 80/month              $ 79/month          $ 127/month
                     Median value of owner-occupied housing            $11,924                 $10,700              $18,800
                     Percent of units moved into in last                  45.2                    41.5                 52.2
                       5 years

                     *Based on Percent of Labor Force Aged 16 Years or Older.

                                                                    D-4

                  EDUCATIONAL CHARACTERISTICS

                  As seen in Table D-4 approximately only 24 percent of those Cambridge residents age 25
                  years or older had completed their high school education. This co impares with a
                  somewhat higher figure of 28.5 percent for the County and a substantially higher figure
                  of 52.3 percent for the State.

                  HOUSING CHARACTERISTICS

                  The number of occupied housing units in Cambridge in 1970 was 4,414 with a median
                  value of gross rent of $80 per month and a median value of owner-occupied housing of
                  $11,924. County totals compare showing a median value of gross rent of $79 per month
                  and a median value of owner-ocrupied housing of $10,700. Again, both community and
                  County figures fall well below the State values of $127 per month for median value of
                  gross rent and $18,800 for the median value of owner-occupied housing.

                  INDUSTRIAL EMPLOYMENT

                  As seen in Table D-5 the overwhelming majority of industrial employment in Cambridge
                  occurs in the Manufacturing sector, followed far behind by the Wholesale and Retail
                  Trade sector. In the case of Cambridge there seems to be a fairly wide range of
                  manufacturing activities represented. While only ten firms contributed 83 percent of the
                  employment in the manufacturing sector, the firms themselves are fairly diverse,
                  engaging in a variety of manufacturing endeavors such as circuit breaker assembly,
                  clothing, printing, and seafood production and processing.

                  County figures expectedly also reflect a significant dependence upon the Manufacturing
                  sector with almost 39 percent of the work force 16 years of age or older employed in this
                  sector. State figures indicate considerably less concentration in this sector as seen in
                  Table D-5.

                                                                     TABLE D-5

                                                CAMBRIDGE 1970 INDUSTRIAL EMPLOYMENT
                                                        (Work force 16 yrs. of age or older)

                                                                                      DORCHESTER
                  SECTOR                                          CAMBRIDGE M COUNTY W                        MARYLAND

                  Construction                                            6.6                  6.7                     6.6
                  Manuf acturing                                          39.7                38.8                    19.5
                  Public Utilities and Transportation                     5.9                  5.5                     6.8
                  Wholesale and Retail Trade                              17.1                16.2                    19.2
                  F.I.R.E. and Repair Services*                           3.1                  3.6                     8.5
                  Professional and Related Services                       11.7                11.4                    12.3
                  Educational Services                                    6.0                  4.8                     8.1
                  Public Administration                                   3.1                  3.9                    13.5
                  Other                                                   6.9                  9.1                     5.5

                                      Total                              100.0               100.0                  100.0

                  *F.I.R.E. is an acronym for Finance, Insurance, and Real Estate.

                                                                 D-5

                    TRANSPORTATION

                    Railroads

                    The Penn Central Transportation Company provides freight service five days a week to
                    Dorchester County. There are two branch lines which intersect at Hurlock; one serves
                    the eastern part of the County and one terminates at Cambridge. Both lines connect
                    with the main line at Seaford, Delaware. The majority of rail traffic is inbound with
                    commodities such as chemicals, fertilizer, lumber and plywood, farm machinery and raw
                    materials for processed foods.

                    Highways

                    The principal artery of the highway system serving Dorchester County is U.S. Route 50
                    which crosses the County from east to west and then crosses the Chesapeake Bay Bridges
                    to link the County with the Baltimore-Washington area. Principal arterials serving
                    Cambridge are U.S. Route 50, Md. Route 16 and Route 343 (Washington Street), with U.S.
                    Route 50 and Washington Street the most heavily used streets.

                    Washington Street really does not provide the service expected of a principal arterial as
                    it divides neighborhoods, is congested and functions more as a local street. Race Street
                    provides the main access to Cambridge from the south, though it too divides
                    neighborhoods and is much too narrow to handle large volumes of traffic effectively.
                    High Street in most sections is also too narrow and is burdened by traffic lights.
                    Maryland Avenue generally works well as an arterial. Locust and Glasgow Streets are
                    designated as arterials; but are really local, very narrow streets with portions in poor
                    condition. Major proposed changes in the Cambridge vicinity consist primarily of the
                    intention to relocate U.S. Route 50 east of the city and to extend Hambrooks Boulevard
                    to Washington Street (Route 343) and to the Cambridge Beltway (Md. Route 16).

                    Truck Service

                    The American Motor Carrier Directory lists ten motor freight common carriers of
                    general commodities authorized to serve Dorchester County with truckload and/or less
                    than truckload service. one motor freight carrier has terminal facilities in Cambridge.

                    Bus Service

                    Trailways serves Dorchester County with daily bus service that provides connections with
                    any major point. The bus company also handles small freight shipments. Highly
                    specialized mini-bus service is available to the City and County through the Dorchester
                    Community Development Corporation.

                    Water Transportation

                    The Port of Cambridge is the only deepwater port on the Delmarva Peninsula. It was
                    constructed in 1963-64 and handles primarily frozen fish products and cheese and cod
                    liver oil products. The port presently shows approximately only 32 percent time
                    utilization of its facilities.

                                                                 D-6

                  The Cambridge Harbor consists of a channel 150 feet wide and 16 feet deep from that
                  depth in the Choptank River to the Market Street Bridge then 100 feet wide and 16 feet
                  deep to the head of the harbor with a turning basin of the same depth and irregular
                  dimensions comprising approximately 2.4 acres. There are also two anchorage basins and
                  a channel 60 feet wide and 7 feet deep from that depth in the Choptank to the municipal
                  boat basin. The existing State dredged channel consists of a channel 150 feet wide and
                  25 feet in depth from that depth in the Choptank to the mouth of Cambridge Creek.

                  Traffic movements in Cambridge Harbor in calendar year 1981 reveal that the most
                  significant commodities being handled are fish, slag, and sand and gravel products as
                  indicated in Table D-6.

                  The Port of Baltimore, about 74 miles northwest of Cambridge, is the third largest
                  foreign tonnage port in the United States and is second only to New York in container
                  traffic. The Port is open throughout the year and is served by a channel 42 feet deep.

                  Air Service

                  The Cambridge Municipal Airport is located three miles southeast of Cambridge. The
                  Airport handles more than 15,000 arrivals and departures yearly, all of them charter or
                  private flights. The airport has facilities suitable for up to two engine commercial jets.

                  The Salisbury-Wicomico Airport is located 36 miles southeast of Cambridge in Wicomico
                  County. The Easton Municipal Airport, 15 miles north of Cambridge in Talbot County,
                  offers scheduled daily service to Baltimore and Washington by two private airlines. The
                  Baltimore-Washington International Airport (BWI), nine miles south of Baltimore and
                  within two hours driving time from Cambridge, is served by all major air carriers and
                  commuter airlines and offers international jet service.

                                                            TABLE D-6

                                   CAMBRIDGE HARBOR 1981 WATERBORNE COMMERCE

                  HARBOR OR WATERWAY                            COMMODITY                                   TONS

                  Cambridge Harbor, MD.             0911  Fresh Fish, except shellfish                    43,732
                                                    0912  Shellfish, except prepared                          912
                                                    1442  Sand, Gravel, Crushed Rock                      33,605
                                                    1491  Salt                                                  I
                                                    2211  Basic Textile Products                                1
                                                    2691  Pulp and Paper Products, NEC                          1
                                                    3312  Slag                                            20,365
                                                    3511  Machinery, Except Electrlical                         I
                                                    3711  Motor Vehicles, Parts, Equip.                         3

                                                                               TOTAL                      98,621

                  SOURCE: Waterborne Commerce Statistics of the United States Calendar Year               1981,
                             Department of the Army, Corps of Engineers, February 1983.

                                                                D-7

                    COMMUNICATIONS

                    Postal Facilities

                    Dorchester County is served by 19 post offices. The largest of these, a Class I facility, is
                    located in Cambridge. Hurlock has a Class 11 post office and East New Market and
                    Secretary have Class III post offices. The other post offices are strategically located
                    throughout the County.

                    Telephone Services

                    The Chesapeake and Potomac Telephone Company of Maryland serves the entire County
                    with a modern dial telephone system for direct nationwide dialing.

                    Radio and Television

                    WCEM (AM and FM), the local Cambridge radio station, is well established in the area
                    for radio coverage and advertising. Emergency radio communications are available
                    through the local station, State Police facilities, county roads department, volunteer fire
                    companies or through the central fire alarm headquarters in Cambridge, the marine
                    police, and the Wilmington marine operator.'

                    Television and radio reception are available on all national networks from Baltimore,
                    Washington and Salisbury. Cable Antenna Television (CATV) is also available to
                    Cambridge residents and to homes in the County up to three miles beyond the city
                    limits. The Cambridge CATV provides listeners with a 21 station selection, including all
                    Baltimore and Washington channels, educational and FM channels.

                    Newspapers

                    Dorchester County is served by two newspapers, both published in Cambridge. The Daily
                    Banner is published every day except Saturday and Sunday and has a circulation of over
                    10,000 paid copies. The Dorchester News, a weekly, has a circulation of about 3,230
                    copies and is issued each Thursday. The County is also served by daily papers f rom
                    Salisbury, Wilmington, Philadelphia, Baltimore and Washington; and by Sunday papers
                    from New York' Philadelphia, Baltimore and Washington.

                    UTILITIES

                    Electricity and Gas

                    The Delmarva Power and Light Company of Maryland supplies electricity to most of the
                    towns and developed areas from a transmission system serving the County. The
                    Choptank Electric Cooperative, Inc., provides central station electricity to the rural
                    areas of Dorchester County.

                    The Eastern Shore Natural Gas Company serves the Delmarva Peninsula. The Cambridge
                    Gas Company has distribution mains in the City of Cambridge and distributes natural gas
                    purchased from the Eastern Shore Natural Gas Company. The local bottled gas
                    companies provide tank service to homes and other facilities on a County-wide basis.
                    The proximity to Baltimore permits easy access to 'supplies of coal and oils via barge,
                    truck or rail.

                                                             D-8

                 Water and Sewerage

                 The Towns of Cambridge, East New Market, Hurlock, Secretary, and Vienna have
                 municipal water systems. The City of Cambridge water system is operated by the
                 Municipal Utili'ties Commission and water is obtained from ten deep wells. The present
                 water supply is from wells from the Piney Point, Magothy, and Raritan aquifers.

                 The Towns of Cambridge, East New Market, Hurlock, Secretary, and Vienna have
                 municipal sewer systems. The Cambridge Wastewater Treatment Plant was constructed
                 in 1937 as a primary treatment plant. The plant has been expanded and modernized over
                 the years. The most recent renovation was completed late in 1973 and provides an
                 activated sludge process to provide secondary treatment as well as a shellfish protection
                 holding pond. The system has a capacity of 8.1 million gallons per day (mgd) (expandable
                 to 10.3 mgd) and has an average daily flow of 5.5 mgd. Future plans call for additional
                 interceptors and force mains in previously unsewered areas. Current plans do not
                 envision any expansion of current capability.

                 COUNTY SERVICES

                 Law enforcement agencies in Dorchester County include the Cambridge police force, the
                 County Sheriff Is office, and the Maryland State Police. There are 14 volunteer fire
                 companies in Dorchester County. Each of them. is well equipped with from two to four
                 pieces of motorized equipment. Nine of the 14 fire companies provide ambulance
                 service. These are strategically located to provide adequate coverage throughout the
                 County.

                 The City of Cambridge has regular trash and garbage collection. Most of the
                 incorporated towns have regular trash and garbage collection but there is no County-wide
                 collection service. Collection service may also be arranged through private
                 contractors. There are three large County-operated land-fills available in the County.

                 EDUCATIONAL SERVICES .

                 The educational program includes grades K-12. There are presently 16 schools in
                 operation which serve the County and the City of Cambridge: seven elementary schools,
                 three secondary schools, five combined institutions, and one vocational-technical
                 school. These schools serve approximately 5,300 students. There are also four nonpublic
                 schooli in the County with an enrollment estimated at approximately 330 students.
                 While there is no insti%tion of higher learning in Dorchester County, there are four
                 colleges nearby: Chesapeake College, Salisbury State College in Wicomico County,
                 Washington College in Kent County, and the University of Maryland-Eastern Shore
                 Branch in Somerset County.

                 HEALTH SERVICES

                 Dorchester General Hospital in Cambridge was completed in 1974 and contains 123 beds
                 and employs over 250 persons. Located immediately adjacent to the present City limits
                 is the Eastern Shore Hospital Center, a fully accredited mental hospital operated by the
                 State.

                                                            D-9

                     The Dorchester County Health Department has administrative offices in Cambridge. The
                     department makes regular inspections throughout the County with eleven clinics in
                     constant operation. There are four privately operated nursing homes in Dorchester
                     County, two of them located in Cambridge with a total of 152 beds, one in Hurlock and
                     one in nearby Williamsburg.

                     CULTURAL INSTITUTIONS

                     Libraries and Churches

                     The Dorchester County Central Library is located in Cambridge. There is also a branch
                     in Hurlock and a bookmobile which serves outlying areas. Churches repr6senting most
                     major denominations are located in the County. The nearest synagogue is located in
                     Easton approximately 15 miles north of Cambridge.

                     Historic Sites

                     There are approximately 260 sites in the vicinity of Cambridge identified by the
                     Maryland Historica-1 Trust as being of significance to the history of the town and county
                     and which will be submitted for inclusion in the National Register of Historic Places.
                     Four sites, Glasgow, Brinsfield I Site, Stanley Institute, and Yarmouth are currently
                     listed on the National Register. In terms of reported archeological sites in the vicinity
                     of Cambridge (within a one mile radius), the Maryland Geological Survey has identified
                     five existing sites (two historical, three aboriginal) of low to medium sensitivity (i.e.,
                     may be eligible for inclusion in the National Register). The Maryland Geological Survey
                     also notes that there is a high potential for significant archeological resources in
                     Cambridge.

                     LAND USE

                     Existing Land Use

                     Table D-7 below indicates the various types of land use in the City of Cambridge in the
                     year 1976. Most significant are the agricultural and wooded areas followed by residential
                     development. Annexations in 1974 and 1976 have dramatically increased the acreage of
                     the City by almost 1, 500 acres or by more than *75 percent of the pre- 1974 level.

                                                               TABLE D-7

                                              LAND USE IN CAMBRIDGEt MARYLAND

                                                                                          PERCENT OF AREA
                     CATEGORY                                  ACRES                      WITHIN CITY LIMITS

                     Residential                                 952.7                             27.7
                     Commercial                                  219.0                             6.4
                     Industrial                                  180.7                             5.2
                     Agricultural, Wooded                       1,711.5                            49.7
                     Public, Semi-public                         247.7                             7.2
                     Parks/Open Spaces                         -132.4                              3.8

                             TOTAL                              3,444.0                           100.0

                                                                  D-10

                 There are definite sections of differing housing quality within the City limits. Many
                 structures of low value are located in an area bounded by Maces Lane, 6ayly Road, Race
                 Street, Park Lane and Leonards Lane. This area exhibits the greatest concentration of
                 economic need in the City.

                 Housing seems to be very sound in the area north of Park Lane bounded by Cambridge
                 Creek on the east, the City limits on the west and the Choptank River on the north.
                 Almost all of the distinctive and historic structures surveyed by the City are contained in
                 this area. Housing is usually sound in the area bounded on the east by the City limits, on
                 the north by the Choptank River, on the south by U.S. Route 50 and Washington Street,
                 and on the west by Railroad Avenue and Hayward Street with a few pockets of housing
                 indicating some deterioration.

                 The area bounded by Rare Street on the west, Trenton Street on the east, the Choptank
                 River on the north and Cedar Street on the south is the downtown commercial core, with
                 the concentration on Cedar, Academy, and Washington Streets. Structural conditions of
                 most of these establishments range from high to low quality. Considerable commercial
                 development also exists along Route 50. This development is situated to take advantage
                 of the trade commuting to Ocean City. Most commercial structures in this area are in
                 good to excellent condition.

                 Most of the industrial land in Cambridge is located in the area immediately adjacent to
                 Cambridge Creek with another section bounded by the railroad tracks, Woods Road (the
                 City limits), and U.S. Route 50. These consist of an admixture of old and new industrial
                 structures. (Some of the land adjacent to Cambridge Creek has recently been
                 redeveloped in conjunction with construction of waterfront residential townhouses by the
                 American Cities Corporation.)

                 Most public and semi-public land use is scattered throughout the community though there
                 is a grouping of government offices in the area of Poplar, Spring, and Cove Streets near
                 Cambridge Creek. Most of these structures are in good condition.

                 Future Land Use

                 The Comprehensive Plan for the City of Cambridge recommends that the area north of
                 Park Lane bounded by Cambridge Creek to the east, the City limits on the west and the
                 Choptank River on the north be established as a historic zoning district. The plan also
                 recommends that the residential area 6ounded by Washington Street on the north, Route
                 16 on the south, Boundary Road on the east and Bayly Road on the west be maintained as
                 a solidly residential area. In the residential area bounded on the west by Railroad
                 Avenue and Hayward Street, on the east by the City limits, on the north by the Choptank
                 River and on the south by U.S. Route 50 and Washington Street, some ef fort is expected
                 to be expended to upgrade some of the existing units but the basic character of the area
                 will remain unchanged.

                 The Comprehensive Plan suggests that development of the area along Cambridge Creek
                 must consider that a large portion of this area lies within the 100-year flood plain. The
                 Plan suggests encouragement of commercial activity and revitalization of the area to
                 include eliminating industrially zoned land surrounding the creek. (In December 1980,

                                                            D-11

                    the American Cities Corporation released a plan for developing this area around
                    Cambridge Creek into a waterfront community and tourist area. Several townhouses
                    have been constructed and plans include construction of a luxury hotel and marina on the
                    Creek.)

                    The "old industrial" area defined by Boundary Road on the west, Washington Street on the
                    north, Route 16 on the south and the City limits on the east, will presumably be
                    demolished and/or renovated for the purpose of attracting "quality" in-town industrial
                    sites. It is also proposed that land on the east and west side of Woods Road to or beyond
                    Route 16 will be used as an industrial growth area.

                    The Comprehensive Plan for Dorchester County divides the County into two major land
                    use categories: 1) growth areas, or areas where the county would like to encourage new
                    development, and 2) conservation areas, or areas which the county would like to maintain
                    for agricultural or open space purposes. The plan designates the county's nine
                    municipalities and 17 of its unincorporated villages as growth areas and proposes that
                    new development be clustered in and around these existing population centers. These 26
                    growth areas are further broken down into four groups; 1) the Cambridge area, or the
                    County's principal growth area, 2) the Hurlock area, the County's second growth area, 3)
                    the East New Market, Secretary and Vienna areas which are capable of limited
                    development, and 4) the small towns and villages suitable only for minor additional
                    residential development which include the County's remaining incorporated towns (such
                    as Brookview, Church Creek, Eldorade, and Galestown and 17 unincorporated villages).

                    The conservation areas are defined as the wetlands'farmlands, forests and waterfront
                    areas. Wetlands are defined as the marshy areas located in southern Dorchester County
                    along the Choptank, Nanticoke, Marshyhope and Blackwater Rivers. Waterfront areas
                    that exist mainly along the Choptank and Little Choptank Rivers are very desirable for
                    residential development. Land use objectives require that the open and natural character
                    of the waterfront areas be maintained by restricting development to agricultural,
                    residential and related uses.

                    CRISFIELD, MARYLAND

                    DEMOGRAPHIC CHARACTERISTICS

                    Crisfield, Maryland, is a fair sized community with a 1970 population of 3,075 located on
                    the southwestern tip of Somerset County. The population of Crisfield is somewhat aged
                    with approximately 53 percent of the population 35 years of age or older and a median
                    age of 37.7 years versus county figures of 47.3 percent and 32.1 years old, respectively.
                    The figures for the state indicate that 40 percent of the population is age 35 years or
                    greater with 27.1 years representing the median age. Historical population trends for
                    Crisfield, Somerset County, the State of Maryland,.and the United States are shown in
                    Table D-8 below.

                                                             D-12

                                                                TABLE D-8

                                      HISTORICAL POPULATION FOR THE U.S., MARYLAND,
                                                SOMERSET COUNTY, AND CRISFIELD
                                                                (1940-1980)

                                           1940              1950            1960            1970             1980

                  UNITED STATES 132,165,000             151,326,000      179,323,000     203,212,000       226,5049825
                   % change                         -           14.5             l&5              13.3              11.5

                  MARYLAND                 1,821,000       2,343,000      3,100,000         3,922,400         49216,941
                   % change                         -           28.6             32.3             26.5               7.5

                  SOMERSET COUNTY             209965          20,745           199623          18,924            19,188
                   % change                         -           -1.0             -5.4             -3.6               1.4

                  CRISFIELD                    3i9O8           32668            3t540           3,075             2,924
                   % change                                     -6.1             -3.5            -13.1              -4.9

                  As can be seen in the above table, population has been declining for several decades in
                  both Somerset County and in Crisfield. However, the 1980 population data indicate that
                  the County experienced a slight increase in population.

                  Based on OBERS Series E population projections for the subregion for the peiod 1980-
                  2020, the estimated population growth for Crisfield and Somerset County is shown in.
                  Table D-9. It should be noted that the regression technique yielded projections that are
                  lower and probably more realistic considering recent historical trends.

                                                             TABLE D-9

                         POPULATION PROJECTIONS FOR CRISFIELD AND SOMERSET COUNTY
                                                            (1980-2020)

                                                  1980*                1990              2000               2020

                  Somerset County                 199100            20,400             21,100            24,000

                  Crisfield                        3,100              3,200              3@200             3,500
                  (Series E)

                  Crisfield                        2,900              2,600              2,400             1,800
                  (Regression)

                    *The 1980 populations presented for Crisfield and Somerset County are the final
                    counts as determined by the Bureau of the Census.

                                                                D-13

                    OCCUPATIONAL DISTRIBUTION

                    Somerset County has a relatively low-skilled labor force as shown in Table D-10. The
                    table shows a high proportion of Operatives (25.7 percent) in comparison to state
                    percentages. These skills are normally associated with low-wage labor intensive
                    industries. The county lacks professional and technical workers which constitute only
                    15.3 percent of the work force 16 years or older.

                    Crisfield also reflects this tendency toward a relatively low-skilled labor force with
                    approximately 22.6 percent of the work force aged 16 years or older employed as
                    Operatives. Only 15.6 percent of Crisfield's work force is classified as Professional or
                    Managerial. These figures compare rather poorly with state totals of 13.3 percent of the
                    work force employed as Operatives and 27.6 percent in the Managerial, Professional
                    category.

                    INCOME CHARACTERISTICS

                    Individual median income in Somerset County rates close to the bottom of the list of all
                    Maryland counties at $1,173 in 1970. Median family income shares this somewhat
                    dubious distinction at $5,890 while 24.5 percent of the families in the county are defined
                    as at or below the poverty level. Figures for Crisfield -are also very low when compared
                    to the state figures, with $1,568 as the median income for individuals and $5,270 as the
                    median income for families with 24.4 percent of the families below the poverty level in
                    1970.

                    EDUCATIONAL CHARACTERISTICS

                    One weakness of Somerset County and Crisfield appears to be the low level of -
                    educational attainment of the population. Only 21.5 percent of the Somerset County
                    residents 25 years of age or older had completed high school. Crisfield fared even worse
                    with only 14 percent of the 1970 population 25 years of age or older having completed
                    high school. These figures compare very poorly with the state figure of approximately 52
                    percent.

                    HOUSING CHARACTERISTrCS

                    The number of year-round housing units in Somerset County in 1970 was 6,897 with a
                    1
                    ross rent median value of $65/month and a median value of owner-occupied housing of
                    7,900. Figures for Crisfield indicate 1,222 occupied units in 1970 with a median gross
                    rent of $65/month and a median value of owner-occupied housing of $8,170. All figures
                    fall well below the state figures for median value of rent ($127/month) and median value
                    of owner-occupied housing ($18,800) as shown in Table D-10.

                    INDUSTRIAL EMPLOYMENT

                    As seen in Table D- 11, the majority of those 16 years of age or older in Somerset County
                    are employed in Manufacturing (26.9 percent) closely followed by the Wholesale & Retail
                    Trade category. The Manufacturing industry in Crisfield seems fairly diverse, with
                    several large companies engaging almost 60 percent of those employed in this sector:
                    Rubberset (220), Geo. A. Cristy Seafoods (150) and Carvel Hall Cutlery (150). Most

                                                             D-14

                                                                  TABLE D-10

                                       DEMOGRAPHIC AND SOCIO-ECONOMIC CHARACTERISTICS
                                         FOR CRISFIELD, SOMERSET COUNTY AND MARYLAND
                                                                      (1970)

                 DEMOGRAPHIC CHARACTERISTICS                    CRISFIELD     SOMERSET COUNTY MARYLAND

                 Population                                            3,075                18@924            3,922,400
                 Median Age                                            37.7                  32.1                  27.1
                 Percent 35 years or older                             52.9                  47.3                  40.0

                 OCCUPATIONAL DISTRIBUTION*

                 Prof. Managerial                                      15.6                  15.3                  27.6
                 Craftsmen, Foremen                                    10.0                  13.0                  13.7
                 Operatives (incl. transportation)                     22.6                  25.7                  13.3
                 Labor (incl. farm)                                    10.3                  11.2                   4.6
                 Farm Managers                                             -                    4.0                 0.7
                 Services                                              14.4                  12.5                  11.6
                 Sales & Clerical                                      27.0                  17.9                  28.1
                 Unemployed                                            16.0                  12.7                   3.2

                 INCOME CHARACTERISTICS

                 Median Individual Income                           $ 1,568                $1,173               .$3,099
                 Median Family Income                                $5,270                $5,890               @11,063
                 Percent of families                                   24.4                  24.5                   7.7
                   below poverty level

                 EDUCATIONAL CHARACTERISTICS

                 Percent of individuals 25 years or                    14.0                  21.5                  52.3
                   older with high school completion

                 HOUSING CHARACTERISTICS

                 Year-round Housing Units                              1,222                 6,897            1,234,469
                 Median gross value of rent                    $ 65/month            $ 65/month          $ 127/month
                 Median value of owner-occupied
                   housing                                           $8,170                 $7,900              $18,800
                 Percent of units moved into in
                   last 5 years                                        50.2                  34.5                  52.2

                 *Based on Percent of Labor Force Aged 16 Years or Older.

                                                               D-15

                                                                      TABLE D-11

                                                   CRISFIELD 1970 INDUSTRIAL EMPLOYMENT
                                                             (Work force 16 years or older)

                     SECTOR                                  CRISFIELD          SOMERSET COUNTY                 MARYLAND (9(

                     Construction                                  7.7                      7.3                        6.6
                     Manufacturing                                 23.2                     26.9                      19.5
                     Public Utilities & Transportation             5.1                      4.3                        6.8
                     Wholesale & Retail Trade                      29.5                     21.0                      19.2
                     F.I.R.E. & Repair Services*                   4.4                      4.3                        8.5
                     Professional & Related Services               7.0                      8.4                       12.3
                     Educational Services                          9.1                      7.8                        8.1
                     Public Administration                         5.9                      4.8                       13.5
                     Other                                         8.1                      15.2                       5.5
                                    Total                         T00.0                    100.0                      100.0

                     *F.I.R.E. is an acronym for Finance, Insurance, and Real Estate.

                     smaller manufacturing establishments are water-oriented which is to be expected
                     considering the ease of access to Bay waters. State figures also show the Manufacturing
                     and Wholesale and Retail Trade sectors as the major areas of employment. Industrial
                     distribution of employment in Crisfield indicates that 29.5 percent of the work force 16
                     years of age or greater are employed in Wholesale & Retail Trade while Manufacturing
                     constitutes 23.2 percent.

                     TRANSPORTATION

                     Railroads

                     Somerset County's location on the southernmost tip of Maryland's eastern shore has
                     served as an inhibiting factor in the growth of the county's economy. Many of the
                     problems within the county arise from its inaccessibility to major metropolitan areas.
                     Though the Conrail railroad network continues to provide rail service to Princess Anne,
                     King's Creek and to Pocomoke City, as of April 1976 several lines were abandoned'as a
                     result of the reorganization of the bankrupt Penn Central Railroad which included the
                     King's Creek-Crisf ield Line. Like many other counties on the lower eastern shore of
                     Maryland, Somerset County also possesses no rail passenger service.

                     Highways

                     The principal artery of the highway system serving Somerset County is U.S. Route 13,
                     which extends north to Wilmington and the New Jersey Turnpike and extends south
                     through the Virginia portion of the eastern shore and connects with the Chesapeake Bay
                     Bridge-Tunnel to Norfolk. Maryland Route 413 links Crisfield with other areas of the
                     County and is the major highway spine of the community. Other streets such as
                     Somerset Avenue, Jacksonville Road, Main Street/Md. 380, and Fourth Street/Woodson
                     School Road carry a rather high volume of traf f ic.

                                                                   D-16

                 Truck Service

                 The American Motor Carrier Directory lists 12 motor freight common carriers of general
                 commodities authorized to serve Somerset County with truckload and/or less-than-
                 truckload service. Three of the freight carriers maintain terminal facilities in nearby
                 Salisbury in Wicomico County.

                 Bus Service

                 Trailways and Greyhound provide Somerset County with daily bus service that includes
                 one stop in Princess Anne and one in Westover. Small freight shipments are also handled
                 by the bus companies. At present, there is no public transportation in Crisfield.

                 Water Transportation

                 As noted earlier, the Port of Cambridge is the only deepwater port on the Delmarva
                 Peninsula. The marine terminal, built on the Choptank River waterfront in Cambridge, is
                 15 miles upstream from the main shipping lane in the Chesapeake Bay and 100 nautical
                 miles from the Virginia Capes. The Port of Baltimore, about 120 miles northwest of
                 Princess Anne, is the third largest foreign tonnage port in the United States and is second
                 only to New York in container traffic. The port is open throughout the year and is served
                 by a channel 42 feet deep.

                 The harbor in Crisfield, though authorized for a depth of 14 feet, presently has only an
                 eight foot channel due to siltation. The economy of the county could be dramatically
                 improved with the deVelopment of a deepwater port at Crisfield. This proposal has been
                 under consideration by local interests. Traffic in Crisfield Harbor is primarily associated
                 with the shellfish industry, as indicated in Table D-12 below. Figures cited are for
                 calendar year 1981 and were taken from the publication Waterborne Commerce of the
                 United States.

                 Air Service

                 The Salisbury-Wicomico Airport is located about 17 miles northeast of Princess Anne in
                 Wicomico County. There are U.S. Air commuter flights daily to Baltimore-Washington
                 International Airport, Washington National Airport, and Philadelphia International
                 Airport. The Airport, situated on over 800 acres, has two 5,000-f oot paved runways and
                 one 5,500-foot paved runway. Services and facilities available include full instrument
                 landing system (ILS), VOR navigational equipment, fuel, charter service, air freight
                 service, student instruction, auto rentals, and hangar space for private and corporate
                 aircraft. The FAA also operates a f light service station at the airport.

                 Crisfield Airport, a municipally operated facility three miles north of Crisfield, has two
                 lighted runways - one 3,500-f oot turf runway and one 2,500-f oot paved runway. Services
                 and facilities available include: fuel, major maintenance, tie downs, attended during
                 daytime, and taxi service.

                                                            D-17

                                                           TABLE D-12

                                     CRISFIELD HARBOR 1981 WATERBORNE COMMERCE

                    HARBOR OR WATERWAY                           COMMODITY                            TONS

                    Crisfield Harbor, MD            0911   Fresh Fish, Except Shellfish                  93
                                                    0912   Shellfish, Except Prepared                35,041
                                                    0931   Marine Shells, Unmanufactured               3,582
                                                    1121   Coal and Lignite                              11
                                                    2094   Groceries                                     102
                                                    2095   Ice                                           33
                                                    3411   Fabricated Metal Products                       7
                                                    4112   Commodities, NEC                              113

                                                                 TOTAL                               38,972

                    SOURCE: Waterborne Commerce Statistics of the United States, Calendar Year 1981,
                              Department of the Army, Corps of Engineers, February 1983.

                    COMMUNICATIONS

                    Postal Facilities

                    There are 18 post offices located in Somerset County. Princess Anne and Crisfield have
                    first class offices. In addition, there are six third class and ten fourth class facilities in
                    smaller communities throughout the County. The mail boat from Crisfield provides daily
                    service to Smith Island.

                    Telephone Services

                    The Chesapeake and Potomac Telephone Company of Maryland serves the entire County
                    with a modem dial telephone system for direct nationwide dialing. The Chesapeake and
                    Potomac Telephone Company has the facilities to expand their services to meet any
                    increased demand. Other telecommunications suppliers are Western Union, IT&T, and
                    Comsat.

                    Radio and Television

                    Radio and Television reception is excellent from stations located on the Eastern Shore.
                    WBOC-TV, Salisbury, serves the area with network programming. CATV service is
                    available in Princess Anne and Crisfield. There are no radio or television stations within
                    Somerset County.

                    Newspapers

                    Somerset County is served by two weekly newspapers. The Marylander and Herald
                    published in Princess Anne, has a paid circulation of about 1,830. The Crisfield Times,
                    published in Crisfield, has a paid circulation of over 2,600. In addition, Salisbury and
                    Baltimore newspapers enjoy a large circulation in the County.

                                                               D-18

                 UTILITIES

                 Electricity and Gas

                 The Delmarva Power and Light Company of Maryland supplies electricity to most of the
                 towns and developed areas. The substation facilities in Somerset County are adequate
                 for the electric load in the area and could be expanded to accommodate any load which
                 might develop in this vicinity.

                 The Choptank Electric Cooperative, Inc., provides central station electricity to the rural
                 areas of Somerset County. Choptank Electric Cooperative can and will expand their
                 services and equipment to meet any demand for electric service for all uses, subject to
                 the established terms and conditions of the cooperative. Propane gas and fuel oil are
                 available in Somerset County from local dealers and distributors.

                 Water and Sewerage

                 The water resources in the County can generally be described as good. The quality and
                 quantity of water available is adequate for most uses, and usually does not require
                 drilling to, or pumping from, excessive depths. A demand in excess of 750 gpm can be
                 met by tapping the Pleistocene-Pliocene aquifer lying at an approximate depth of 20 to
                 80 feet.

                 There are munic *ipal water systems in Crisfield and Princess Anne. The Crisfield water
                 system consists of five wells which have a capacity of 2.0 mgd. The water receives no
                 treatment. The distribution system extends to the Carvel Hall plant, one mile northeast
                 of the corporate limits. The residences outside the city limits are served by a series of
                 small private lines. A new principal loop was installed in 1973 within the city. The
                 Harbor Industrial Area mains have been rehabilitated. The current usage is 1.2 mgd.
                 Storage consists of a 250,000 gallon standpipe.

                 There are municipal sewer systems in Crisfield and Princess Anne. A system is being
                 planned for Smith Island. The sewerage system serves the entire town of Crisfield and
                 that area adjacent to Route 413 to the Carvel Hall Plant, one mile northeast of the
                 corporate limits. The treatment plant is a secondary extended aeration type with a
                 capacity of 1.00 mgd. The average daily flow is 0.6 mgd. The treated effluent is
                 discharged into the Little Annemessex River.

                 COUNTY SERVICES

                 The Sheriff's office has three uniformed deputies and three patrol cars. Princess Anne
                 and Crisfield maintain local police departments. All three departments are
                 interconnected with the State Police Headquarters in Salisbury by a modern radio
                 system.

                 Fire protection is provided in the northern portion of the county by the Princess Anne
                 Volunteer Fire Company and in the southern portion of the county by the Crisfield
                 Volunteer Fire Department. Both companies are jointly funded by county and town
                 appropriations. Volunteer fire departments are also active in Deal Island, Ewell, and
                 Marion Station. The volunteer fire companies in Princess Anne and Crisfield provide
                 ambulance service. Both Princess Anne and Crisfield operate municipal refuse collection
                 f acilities.

                                                           D-19

                    EDUCATIONAL SERVICES

                    The educational program in the county includes. grades kindergarten through 12. There
                    are approximately 15 schools located in the county with an enrollment of approximately
                    3,600 students. Educational facilities in the Crisfield area consist of two elementary,
                    one middle and one high school. There are two nonpublic schools in the county with an
                    enrollment of approximately 50 students.

                    The University of Maryland-Eastern Shore Branch, a fully accredited four year public
                    college, is located in Princess Anne. Salisbury State College, another fully accredited
                    four year college, is located in Salisbury. Tawes Vocational School provides vocational
                    and technical training in programs ranging from automechanids to marine harvest to
                    health occupations.

                    HEALTH SERVICES

                    The McCready Memorial Hospital, in Crisfield, is a general hospital with a 40 bed and 8
                    bassinet capacity. Residents in the northern part of the county use the facilities of
                    Peninsula General Hospital in Salisbury, 13 miles north of Princess Anne. The Hospital
                    has 370 beds and a staff of over 90 physicians and surgeons. It is the largest, fully
                    accredited hospital on the Delmarva Peninsula.

                    The Somerset County Health Department in Princess Anne administers an active program
                    with four divisions - Administration, Public Health Nursing, Mental Health, and
                    Environmental Health. The Alice B. Tawes Nursing Home, in Crisfield, has a capacity of
                    64 beds.

                    CULTURAL INSTITUTIONS

                    Libraries and Churches

                    The Somerset County Library system operates branches in Princess Anne, Crisfield, and
                    Smith Island. Churches representing most major denominations are located in the
                    County. Within the City limits of Crisfield there are approximately 12 churches of
                    various denominations.

                    Historic Sites

                    There are four sites in the Crisfield vicinity identified by the Maryland Historical Trust
                    which are considered to be of significance to the history of the town and county and
                    which will be submitted for inclusion in the National Register of Historic Places. One of
                    these, Make Peace, is currently listed on the National Register. In terms of reported
                    archeological sites in the vicinity of Crisfield (within a radius of approximately one
                    mile), the Maryland Geological Survey has indicated that there are currently no sites
                    recorded in the area, although a high potential for sites does exist.

                    LAND USE

                    The predominant land use category in Crisfield is residential. In the northern portion of
                    the city, along Somerset Avenue and Hall Highway, the land use pattern is relatively
                    large lot single family residential with mixed public and quasi-public uses. Areas in the
                    central portion of the city, generally south and west of Somerset Avenue and Hall

                                                               D-20

                Highway are characterized by a pattern of single family residential use on lots which
                average 8,000 to 12,000 square feet in area. In'areas immediately surrounding the
                "uptown" central business area, as well as to the south along Fourth Street and Charlotte
                Street, there are apartments, semi-detached and attached housing intermixed with single
                family detached. In addition, there is a large area which is undeveloped south of Cove
                Street between Somerset Avenue and Charlotte Street.

                Information on county land use policies is scarce with comments limited only to the fact
                that Princess Anne, Westover, and Crisfield are the major areas in the county for
                residential, commercial and industrial development. County planners have not quantified
                existing land usage nor made land use projections. Comments are limited to the mention
                that further commercial and industrial development will be encouraged to take place in
                the localities mentioned above.

                Other than in the central business area, the only planned commercial use occurs on Route
                413 in the vicinity of the Potomac Street intersection and along Jacksonville Road. The
                central business district includes the "downtown" and the "uptown" commercial areas
                running along Main Street from the city dock to Third Street. This seven block strip
                contains heavy concentrations of commercial activity, vacant lots, multi-family use and
                a few scattered industrial uses close to the water.

                Industrial activity in Crisfield is centered along the waterfront north of Main Street and
                on the tip of Jersey Island. At least one-half of the industrial activity is related to the
                use of the water.

                POCOMOKE CITYt MARYLAND

                DEMOGRAPHIC CHARACTERISTICS

                Pocomoke City is located in southwestern Worcester County and had a 1970 population of
                3,573. The population's median age was 34.5 years and approximately 50 percent of the
                population was 35 years of age or older. This compares with a 1970 Worcester County
                median age of 31.5 years with 46.4 percent of the County population aged 35 years or
                older. State figures indicate a median age of 27.1 years with approximately 40 percent
                of the population aged 35 years or older. Historical population trends for Pocomoke
                City, Worcester County, the State of Maryland and the United States are shown in Table
                D- 13.

                As indicated in Table D-43 in the 1940 - 1970 period Pocomoke City grew somewhat
                more rapidly than the County yet significantly less rapidly than either the State or
                Nation. However, 1980 Census results indicate that while the County grew more than 25
                percent in the 1970 - 1980 period, Pocomoke City actually lost population.

                Based upon OBERS Series E population projections for the subregion, the estimated
                populations for Worcester County and for Pocomoke City are shown in Table D-14. It
                should be noted that linear regression techniques applied to historical data of population
                growth in Pocomoke City over the period 1940-1970 yield increasingly significant
                differences from Series E OBERS projections.

                                                         D-21

                                                                 TABLE D-13

                                         HISTORICAL POPULATION FOR THE U.S., MARYLAND,
                                              WORCESTER COUNTY, AND POCOMOKE CITY
                                                                 (1940 - 1980)

                                                   1940           1950            1960             1970             1980

                     UNITED STATES         1329165,000     151,326,000     179,323,000      2039212,000     2269504,825
                      % change                        -           14.5             18.5             13.3            11.5

                     MARYLAND                 1,821,000      2,343,000       39100,000       39922,400         4,216,941
                      % change                        -           28.6             32.3             26.5              7.5

                     WORCESTER COUNTY 21V245                     23,148         239733           24P442           30,889
                      % change                        -             9.0             2.5              3.0            26.4

                     POCOMOKE CITY                2,739          31191            3,329            39573            31558
                      % change                        -           16.5              4.3              7.3            -0.4

                                                             TABLE D-14

                       POPULATION PROJECTIONS FOR POCOMOKE CITY AND WORCESTER COUNTY
                                                              (1980-2020)

                                                    1980*             1990               2000               2020

                     Worcester County              309889            30,700             33,400            419400

                     Pocomoke City                  3,558             4,700              52200             b,700
                     (Series E)

                     Pocomoke City                  39558             4PI00              49400             4,900
                     (Regression)

                       *The 1980 populations presented for Crisfield and Somerset County are the final
                       counts as determined by the Bureau of the Census.

                     OCCUPATIONAL DISTRIBUTION

                     As shown in Table D-15 more than 25 percent of the work force aged 16 years or above in
                     Pocomoke City is employed in the Sales and Clerical category followed by 19.7 percent
                     in the Professional & Managerial and 19.6 percent in the Operatives classification.
                     County figures show that the Professional & Managerial category is the primary
                     occupation followed closely by Operatives, though state figures, for the most part,
                     parallel those of Pocomoke City.

                                                                 D-22

                INCOME CHARACTERISTICS

                Individual median income in the community of Pocomoke City in 1970 was $1,538 with
                median family income of $7,628 and with 14.4 percent of the families defined to be
                below poverty level. This compares with County figures of $1,697 and $7,368 for the
                median income of individuals and families, respectively, and with 17.2 percent of the
                families defined as below the poverty level. State income levels are significantly higher
                as shown in Table D- 15 while the percentage of families existing below the poverty level
                is substantially lower.

                EDUCATIONAL CHARACTERISTICS

                Figures in Table D-15 indicate that in Pocomoke City in 1970 approximately 24 percent
                of those aged 25 years or greater had completed their high school education. This
                compares unfavorably with both County and State figures of 32 percent and 52 percent,
                respectively.

                HOUSING CHARACTERISTICS

                The number of year-round housing units in Pocomoke City was 1,333 in 1970 with a
                median value of gross rent of $78 per month and a median value of owner-occupied
                housing of $12,403 as shown in Table D-15. County figures display a marked similarity
                with a median value of gross monthly rent of $79 and a median value of owner-occupied
                housing of $11,400. Both community and county figures appear well below those of the
                State.

                INDUSTRIAL EMPLOYMENT

                As shown in Table D-16 approximately 27 percent of industrial employment in Pocomoke
                City is in the area of Wholesale and Retail Trade followed by Manufacturing with 22.1
                percent. The town has a number of fairly large employers in this latter category, with
                Campbell Soup (300), Somerset Packing (126), Chesapeake Bay Plywood (310), Delmarva
                Forest (45), and Pocomoke Garment (43) being the most significant. This aggregate
                distribution is very consistent with both County and State trends as seen in Table D-16.

                TRANSPORTATION

                Railroads

                The Snow Hill Shipper's Association provides freight service to Worcester County and to
                Pocomoke City as well. There are 14 rail users with 2 or 3 trains per week serving the
                County. There is no rail passenger service in the County.

                Highways

                The highway system in Worcester County includes U.S. Route 13, which extends northward
                to Wilmington and the New Jersey Turnpike and southward through the Virginia portion of
                the eastern shore and connects with the Chesapeake Bay Bridge-Tunnel to Norfolk. U.S.
                Route 113 crosses the County and joins U.S. Route 13 at Pocomoke City. Long-range plans
                of the State Highway Administration are that U.S. Route 113 be dualized for its entire
                length through the county as a limited access expressway. U.S. Route 50 which has its
                eastern terminus at Ocean City links the Eastern Shore with the Baltimore-Washington area
                and points west via the Chesapeake Bay Bridges.

                                                         D-23

                                                                    TABLE D-15

                                        DEMOGRAPHIC AND SOCIO-ECONOMIC CHARACTERISTICS
                                     FOR POCOMOKE CITY, WORCESTER COUNTY, AND MARYLAND
                                                                       (1970)

                      DEMOGRAPHIC CHARACTERISTICS POCOMOKE CITY WORCESTER COUNTY MARYLAND

                      Population                                       3,573                      24,442             3,922,400
                      Median Age                                       34.5                         31.5                 27.1
                      Percent 35 years or older                        49.6                         46.4                 40.0

                      OCCUPATIONAL DISTRIBUTION*

                      Pr6f. Managerial                                 19.7                         17.9                 27.6
                      Craftsmen, Foremen                               14.3                         15.1                 13.7
                      Operatives (incl. transportation)                19.6                         17.5                 13.3
                      Labor (incl. farm)                                 5.9                        13.3                 4.6
                      Farm Managers                                      0.7                        4.1                  0.7
                      Services                                         14.4                         15.1                 11.6
                      Sales & Clerical                                 25.5                         16.7                 28.1
                      Unemployed                                          4.7                       3.2                  3.2

                      INCOME CHARACTERISTICS
                      Median Individual Income                        $19538                      $1,697               53,00
                      Median Family Income                            $7,628                      $7,368               $11,063
                      Percent of families below                        14.4                         17.2                 7.7
                       poverty level

                      EDUCATIONAL CHARACTERISTICS

                      Percent of individuals 25 years or               23.7                         32.3                 52.3
                       older with High School completion

                      HOUSING CHARACTERISTICS

                      Year-round housing units                         1,333                        8,962             19234,469
                      Median gross value of rent                $ 78/month                     $ 79/month           $127/month
                      Median value of owner-occupied                 $12,403                      $11,400              $18,800
                       housing
                      Percent of units moved into                      38.8                         38.1                 52.2
                       in last 5 years

                      *Based on Percent of Labor Force Aged 16 Years or Older.

                                                                    D-24

                                                           TABLE D-16

                                    POCOMOKE CITY 1970 INDUSTRIAL EMPLOYMENT
                                                  (Work Force 16 yrs. or older)

                                                                                   WORCESTER
                 SECTOR                             POCOMOKE CITY                  COUNTY(%)          MARYLAND(%)

                 Construction                                  7.1                      9.9                  6.6
                 Manuf acturing                               22.1                      22.3                19.5
                 Public Utilities
                   Transportation                              4.8                      4.4                  6.8
                 Wholesale & Retail Trade                     26.8                      18.1                19.2
                 F.I.R.E. & Repair Services*                   4.1                      6.5                  8.5
                 Professional & Related Services               3.5                      8.3                 12.3
                 Educational Services                          7.9                      4.3                  8.1
                 Public Administration                         9.4                      5.2                 13.5
                 Other                                         14.2                     21.0                 5.5
                                   Total                     100.0                    100.0                To- 0. 0

                 *F.I.R.E. is an acronym for Finance, Insurance, and Real Estate.

                 Truck Service

                 The American Motor Carrier Directory lists 10 motor freight common carriers of general
                 commodities authorized to serve Worcester County with truckload and/or less-than-
                 truckload service.

                 Bus Service,

                 Trailways provides Worcester County with daily bus service through which connections
                 with any major point are available.

                 Water Transportation

                 The Port of Cambridge is the nearest deepwater port to Worcester County and is located
                 about 50 miles northwest of Snow Hill. The marine terminal, built on the Choptank River
                 waterfront in Cambridge, is 15 miles upstream from the main shipping lane in the
                 Chesapeake Bay and 100 nautical miles from the Virginia Capes.

                 The Port of Baltimore, about 125 miles from Snow Hill, is the third largest foreign
                 tonnage port in the United States, handling a record 36.9 million tons of export/import
                 trade in 1975. Baltimore, the second largest container tonnage port on the East and Gulf
                 Coasts, moved a total of about 3.4 million tons of containerized general cargo in 1975.

                 The Pocomoke River is commercially navigable and is used primarily for the barging of
                 petroleum products and wood chips as shown in Table D-1 7. There is an I I foot channel
                 100 to 150 feet in width through Pocomoke Sound from the mouth of the river to deep
                 water in Chesapeake Bay. Private pleasure craft use the river to some extent,
                 particularly during the fishing season.

                                                                D-25

                                                            TABLE D-17

                                      POCOMOKE RIVER 1981 WATERBORNE COMMERCE

                     HARBOR OR WATERWAY                        COMMODITY                          TONS

                     Pocomoke River, MD           2416 Wood Chips, Staves, Moldings             123,637
                                                  2911 Gasoline                                   10,772
                                                  2914 Distillate Fuel Oil                         99248
                                                               TOTAL                            1429657

                     SOURCE: Waterborne Commerce Statistics of the United States, Calendar Year 1981,
                               Department of the Army, Corps of Engineers, February 1983.

                     Air Service

                     The Ocean City Municipal Airport is located 30 miles northeast of Pocomoke City and
                     has a 3,400-f oot paved runway which is lighted from dusk to dawn. There is scheduled
                     commuter service to Baltimore-Washington International Airport (BWI) near Baltimore
                     and to Dulles International Airport west of Washington, D.C.

                     The Salisbury-Wicomico County Airport is located about 20 miles north of Pocomoke
                     City. The U.S. Air commuter has an average of about 28 flights daily to Baltimore-
                     Washington International Airport (BWI), Washington National Airport, and Philadelphia
                     International Airport.

                     COMMUNICATIONS

                     Postal Facilities

                     Worcester County is served by 10 post offices. There are four Class I offices located in
                     Berlin, Ocean City, Pocomoke City, and Snow Hill. There are six Class III offices located
                     in Bishopville, Girdletree, Newark, Showell, Stockton, and Whaleysville. City delivery is
                     provided for the residents in the four Class I office locations. Rural routes also originate
                     from seven of the county post offices for mail delivery to the rural residents.

                     Telephone Services

                     The Chesapeake and Potomac Telephone Company of Maryland provides telephone
                     service in Worcester County. Direct distance dialing is available to all customers. The
                     county seat, Snow Hill, is included in the local calling area for every exchange in
                     Worcester County. Western Union, IT&T, and Comsat also provide telecommunications
                     service.

                     Radio and Television

                     There are three radio stations in Worcester County. WBOC (AM & FM) has a studio in
                     Ocean City as well as in Salisbury in Wicomico County. WDMV (AM) is located in
                     Pocomoke City and WETT (AM) is located in Ocean City. The nearest commercial
                     television station is WBOC-TV in Salisbury which has a network hookup with AbC, Cbs,
                     and NBC. In addition, there is a cable TV system available in all the incorporated towns
                     in Worcester County.

                                                                D-26

                Newspapers

                There are three weekly newspapers published in Worcester County-The Eastern Shore
                Times in Ocean City with a circulation of about 4,000; the Maryland Coast Press in
                Ocean City with a circulation ofabout 4,650, and the Worcester County Messenger in
                Pocomoke City with a circulation of about 3,700. In     ion to these newspapers, daily
                and Sunday papers from Baltimore, Philadelphia, Salisbury, Washington, D.C. and
                Wilmington have a wide circulation.

                UTILITIES

                Electricity and Gas

                Delmarva Power and Light Company supplies electricity to most of the towns and
                developed areas in Worcester County. Choptank Electric Cooperative, Inc. provides
                electrical service to a large portion of rural Worcester County. The Cooperative
                distributes bulk power to this area from four substations. The distribution system of
                Choptank Electric Cooperative is interconnected with Delmarva Power and Light
                Company. Independent municipal propane gas service is available in Berlin, Ocean City,
                Pocomoke City, and Snow Hill.

                Water and Sewerage.

                There are municipal water systems in Berlin, Newark, Ocean City, Pocomoke City, and
                Snow Hill. The Pocomoke City water system consists of two wells which are capable of
                furnishing 1,400 gallons of water per minute. The water supply is filtered and chemically
                treated. There is an overhead storage tank which has a capacity of 300,000 gallons.
                Water for industrial purposes is available from the Pocomoke River. The Pocomoke City
                municipal sewerage system is a modem lagoon system and is considered adequate for
                future needs. The system discharges into the Pocomoke River.

                COUNTY SERVICES

                Law enforcement agencies in Worcester County include town police forces in Berlin,
                Pocomoke City, Snow Hill, and Ocean City. The Pocomoke City Police Department has a
                chief and nine officers. Fire protection is provided by several volunteer fire companies
                located in the incorporated towns. Poromoke City's volunteer company has ample fire
                fighting equipment and also provides ambulance service on a 24-hour basis. Pocomoke
                City also provides its residents with regular refuse collection.

                EDUCATIONAL SERVICES

                There are 13 schools in the County with a total enrollment of approximately 5,000
                students. Four of these schools are located in Pocomoke City. The Worcester County
                Comprehensive Plan envisions the construction of two additional elementary schools in
                the southern portion of the county and three additional elementary schools in the
                northern section with an expansion of the existing middle and high schools. There are
                three nonpublic schools in Worcester County with an enrollment of approximately 360
                students.

                                                         D-27

                     There is no institution of higher learriing located in Worcester County. There are two
                     colleges nearby - Salisbury State College in Wicomico County and the University of
                     Maryland, Eastern Shore Campus in Somerset County. A new regional community college
                     for the lower eastern shore of Maryland has been authorized by the State and will be
                     sponsored by the Worcester and Wicomico, County governments. There is also a County
                     Vocational center which offers training in eight trades and occupations.

                     HEALTH SERVICES

                     There is no hospital in Worcester County. The majority of the county's citizens use the
                     Peninsula General Hospital in Salisbury, which is the largest, fully accredited hospital on
                     the Delmarva Peninsula. Public health services are provided through the Worcester
                     County Health Department with offices and clinics maintained in Snow Hill, Pocomoke
                     City, and Berlin. There are also two nursing homes in Worcester County with a total bed
                     capacity of 48.

                     CULTURAL INSTITUTIONS

                     Libraries and Churches

                     The Worcester County Library administrative offices and the Snow Hill branch are
                     located in a 12,000 square foot one-level brick building with a walled garden in Snow
                     Hill. There is no library in Pocomoke City. Churches representing most major
                     denominations are located in the county. Pocomoke City itself has approximately one
                     half dozen churches of various denominations.

                     Historic Sites

                     There are nine sites in the vicinity of Pocomoke City which have been identified by the
                     Maryland Historical Trust as being significant to the history of the town and county.
                     These will be submitted for inclusion in the National Register of Historic Places. Two of
                     these sites, the Costen House and Beverly are currently on the National Register.

                     There are no reported archeological sites in the vicinity of Pocomoke City (within a one
                     mile radius), but it should be noted that a systematic survey of the area has not been
                     conducted. There is a high potential for significant archeological resources in Pocomoke
                     City according to the Maryland Geological Survey.

                     LAND USE

                     Existing Land Use

                     There are 1,213 acres of land and water within the incorporated limits of Pocomoke
                     City. Approximately 62 percent of this area, or 756 acres, has been developed for some
                     type of use. The most extensive type of use in Pocomoke City is residential. This use
                     accounted for 40 percent of the total developed area as shown in Table D-18. The
                     following discussions on existing and future land use are taken from the 1981 Pocomoke
                     City Comprehensive Plan.

                                                                D-28

                                                      TABLE D-18

                                             POCOMOKE CITY LAND USE
                                                  (Data Through 1975)

                                                                         PERCENT OF
                LAND USE TYPE                          ACRES          DEVELOPED AREA

                Residential                               299                      40
                Commercial                                  87                     11
                Industrial                                  76                     10
                Others                                    294                      39
                   Total                                  756                      100

                SOURCE:    Pocomoke City Comprehensive Plan, January 1981.

                An analysis of the spatial distribution of land uses within the Pocomoke City Planning
                Area reveals a definite pattern of development within the city and the immediate
                surrounding area. Concentrated in the heart of town is the Central Business District
                (CBD), which is the primary center of economic activity within the city's corporate
                limits. The CBD is situated along two blocks of Market Street from Front Street to
                Second Street with some spillover southward on Clarke Avenue and Willow Street.
                However, the downtown Central Business District is currently competing for business
                activities within the city limiis with two relatively new shopping centers located along
                U.S. Route 13. These secondary commercial activity centers are the Roses Shopping
                Center at the intersection of Linden Avenue and U.S. Route 13 and the Ames Shopping
                Center Complex at the intersection of U.S. Route 13 and U.S. Route 113.

                Industrial activity within the corporate limits of Pocomoke City is primarily
                concentrated in an industrial belt extending southward from the railroad along the
                Pocomoke River and along a small spur extending eastward. along the railroad to fourth
                Street. The remainder of the land within the corporate limits is devoted primarily to
                single family homes. However, within the corporate limits there is still a considerable
                amount of undeveloped property around the edges and on all sides of the built-up sections
                of the city, especially in the vicinity south of Lynnhaven Drive and the area west of the
                Homewood Subdivision between Cedar Street and the railroad. The other essential
                community facilities such as schools, churches and other public and semi-public
                institutions are spotted throughout the residential areas.

                Beyond the corporate limits, strip residential development has occurred along Cedar Hall
                Road (Route 371) to the south, Old Snow Hill Road (Route 756) to the north and along Old
                U.S. Route 113. In recent years, there have been substantial new housing starts in the
                Stockton Road - Groton Road - Burk Harbor Road area to the east of town. Along U.S.
                Route 13 southward from the corporate limits to the Virginia State line, there is an
                almost continuous strip of major commercial businesses such as automobile dealerships,
                large motels, restaurants and other smaller highway oriented businesses such as service
                stations and fast food restaurants along both the east and west of U.S. Route 13. In
                addition to these areas, some scattered industrial and business establishments have
                located along old U.S. Route 113 to the north of town. The remainder of the
                development within the Pocomoke City Planning Area is primarily rural farm or non-

                                                          D-29

                     farm residential. It is evident that there are numerous areas for urb@n growth and
                     expansion to the north, east and south of town and particularly f or industrial
                     development along the railroad.

                     After analyzing the existing land use pattern, the fairly compact nature of existing
                     development in Pocomoke City is especially evident. This pattern may be attributed in
                     large part to the availability of city water and sewer facilities. A continued policy of
                     orderly and systematic extension of the water and sewer lines will assist in preventing
                     any undesirable urban sprawl by discouraging scattered developments that are expensive
                     to serve with public utilities. The City should continue to encourage the development of
                     close-in vacant areas where public water and sewer extensions can be installed easily,
                     efficiently and economically.

                     Future Land Use

                     A comparison of the land use statistics of Pocomoke City with those of a typical small
                     community indicates that the percentage of residential land to total developed land is
                     almost identical to that of a typical small community. The Pocomoke City
                     Comprehensive Development Plan should focus on an anticipated growth of roughly 35%
                     in the population of Pocomoke City over the next 20 years. This means a total growth of
                     approximately 1,700 persons during the planning period or roughly 23 families per year.
                     In accordance with current trends, it may be assumed that the additional population will
                     reside primarily in single family homes at an average density of 4 - 6 units per acre,
                     which creates a need for a minimum of approximately 95 to 140 acres of residential land
                     to satisfy the residential needs of the anticipated population. The land designated for
                     residential purposes within the corporate limits provides an estimated I - 1.5 times the
                     amount of land required for residential use in order to provide a variety of living
                     environments for families to consider in selecting an area to build a home which best
                     suits their individual needs and tastes.

                     Based on its continuing role as a regional focal point for commercial activity and the
                     possibility of annexing some commercial land along U.S. Route 13, it is anticipated that
                     Pocomoke City's share of commercial activity will continue at a level substantially above
                     those of similar size communities. Therefore, it is recommended that commercial
                     activity within the corporate limits maintain a level of roughly 6 - 10 percent of all
                     development activity throughout the planning period. This would mean the addition of up
                     to 23 acres of commercial land during the next 20 years depending on development
                     demands, and the amount of commercial land that may be annexed. Since the existing
                     number of commercial acres within the town is already approximately & percent of the
                     projected total developed community in the year 2000, it is felt that the need for
                     additional commercial land will be minimal during the time frame of the plan and efforts
                     should be directed toward: (1) maximizing the development potential of existing
                     commercial areas within the community by directing new commercial businesses into
                     vacant buildings and redevelopment areas within the downtown area to stimulate the
                     revitalization of the Central Business District and also into already existing shopping
                     centers; and (2) the annexation of commercial land outside the present corporate limits
                     along U.S. Route 13.

                     From an industrial land use perspective, Pocomoke City appears to be somewhat above
                     the norm of an average community. However, this is somewhat misleading because
                     Poromoke City cannot be regarded as an average community from an industrial

                                                                D-30

                viewpoint. The pocomoke City area is currently a major industrial and manufacturing
                center f or the surrounding region and is directly responsible f or the employment of over
                950 persons in the manufacturing sector of its economy alone. Therefore, it is to be
                reasonably expected that the industrial sector of the economy should account for a
                greater percentage of the total developed community than that of comparable
                communities.

                Even though industrial land use presently accounts for over 10 percent of the total
                developed community, the industrial sector of the economy of Pocomoke City has failed
                to keep pace with other sectors of the economy over the last ten years. The industrial
                sector has remained relatively constant, in terms of land use, while the commercial
                sector has tripled in terms of the percentage of the total community. This lack of any
                substantial industrial activity within Pocomoke City during the last 10 years as the
                community's population has steadily increased and the continued loss of the younger
                working force of the community due to a lack of adequate job opportunities has created a
                need for a substantial expansion of the industrial sector of the economy during the next
                20 years. In an effort to upgrade and expand the'industrial sector in hopes of developing
                a more balanced and diversified economy for the Pomocoke City area and in order to
                fulfill its designated role in the Worcester County Comprehensive Plan as the industrial
                center for the county, it is recommended that a minimum of 30 - 80 additional acres of
                suitable land be developed for industrial purposes within the planning area during the
                next 20 years. The City has recently taken steps in meeting its future industrial land
                requirements with the development of approximately 65 acres of industrial property
                along Broad Street.

                In September 1980 a report was published which examined the feasibility of implementing
                a waterfront redevelopment program in Pocomoke City. This program would build upon
                the natural amenities of the riverfront area as well as protect the existing openness and
                accessibility of the waterfront. Another goal of the program would be to tie this new
                development more closely to the existing Market Street retail and commercial center.
                The program would involve some residential and commercial development as well as new
                park and open space features.

                ROCK HALL9 MARYLAND

                DEMOGRAPHIC CHARACTERISTICS

                Rock Hall, Maryland, is a small town with a 1970 population of 1,101. It is located in
                southwestern Kent County, approximately 12 miles southwest of the county seat of
                Chestertown. The population of Rock Hall, when compared to State totals, is somewhat
                aged with a median age of 34.9 years and with approximately 50 percent of the
                population older than 35 years of age. This compares with a state figure of
                approximately 40 percent of the population 35 years of age or older and a median age of
                27.1 years. County figures indicate that approximately 49 percent of the population of
                Kent County is 35 years of age or older. Historical population trends f or Rock Hall, Kent
                County, the State of Maryland and the U.S. are shown in Table D-19.

                                                          D-31

                                                                  TABLE D-19

                                                 HISTORICAL POPULATION FOR THE U.S.,
                                             MARYLAND, KENT COUNTY, AND ROCK HALL
                                                                  (1940-1980)

                                                   1940            1950           1960              1970           1980

                     UNITED STATES 132,165tOOO             151,326,000     179,323,000      203,212,000     226,504,825
                       % change                       -            14.5           18.5              13.3           11.5

                     MARYLAND                1,821,000       2,343,000       3,100,000        3@9229400       4,216,941
                       % change                       -            28.6           32.3              26.5            7.5

                     KENT COUNTY                 13,460          13,680          15,480           16,150          16,695
                       % change                       -             1.6           13.2               4.3            3.4

                     ROCK HALL                      781             786           1,073            1,101           1,511
                       % change                       -             0.6           36.5               2.6            3.7

                     By 1970, the population of Rock Hall had increased 2.6 percent over the figure for 1960.
                     The population of Kent Count increased 4.3 percent and the State figure had increased
                     26.5 percent over the same period. Total U.S. population over the same period increased
                     13.3 percent. Population growth in this period in Kent County was markedly lower than
                     that displayed by state or national trends.

                     Based upon OBERS Series E population projections for the subregion, the estimated
                     population growth f or Kent County and f or Rock Hall is shown in Table D-20. It should
                     be noted that linear regression techniques applied to the population of Rock Hall yielded
                     a significantly lower population estimate for the year 2020 only.

                                                              TABLE D-20

                               POPULATION PROJECTIONS FOR ROCK HALL AND KENT COUNTY
                                                               (1980-2020)

                                                 1980*            1990            2000             2020

                     Kent County                16,695          18,400          20,000           24,800

                     Rock Hall                   Iv511           19450           1,600             2,100
                     (Series E)

                     Rock Hall                   1,571           1,400           1,500             1,800
                     (Regression)

                       *The 1980 populations presented for Rock Hall and Kent County are the final counts as
                       determined by the Bureau of the Census.

                                                                  D-32

                 OCCUPATIONAL D15TRIBUTION

                 The occupational distribution of Rock Hall is centered in several areas, with the Labor,
                 Sales and Clerical, Services, and Craftwork sectors employing 23.8, 20.7, 20.0 and 17.1
                 percent of the work force, respectively. This contrasts with the county distribution
                 which indicates that Sales and Clerical constitute 19.4 percent, Professional and
                 Managerial represent 17.7 percent, Laborers constitute 16.3 percent, and the Craftsmen
                 and Foremen constitute 13 percent of the work force. County unemployment in 1970 was
                 5.9 percent of the work force. Unemployment in the community in 1970 was less than
                 four percent of the work force unemployed. This figure compares with the County and
                 State percentage of 5.9 and 3.2, respectively in Table D-21.

                 INCOME CHARACTERISTICS

                 Individual median income in the community of Rock Hall in 1970 was $1,500, with median
                 family income at approximately $6,406, and 14.7 percent of the families below the
                 poverty level as shown in Table D-21. Individual median income in the County in 1970
                 was $1,630 with a median family income of :P,636. Only 12.9 percent of the families in
                 the County were defined to be below the poverty level in 1970. Individual median income
                 at the State level in 1970 was significantly higher at $3,099 with the median family
                 income also significantly higher at $11,063 with only 7.7 percent of the families below
                 the poverty level. Based upon OBERS Series E per capita income projections, the
                 compound annual growth rate of per capita income for'the period 1980-2020 for Rock
                 Hall and Kent County is projected to be 2.9 percent.

                 EDUCATIONAL CHARACTERISTICS

                 In 1970, approximately 80 percent of the population aged 25 years or older had not
                 completed high school. This compares with county and state figures of 63 and 48
                 percent, respectively.

                 HOUSING CHARACTER15TICS

                 The number of housing units in Rock Hall in 1970 was 473 with a median.gross value of
                 rent of $74 per month and a median value of owner occupied housing of @12,359 as shown
                 in Table D-21. County totals valued median gross rent at $85 per month with a median
                 value of owner occupied homes in 1970 of $13,100. This contrasts distinctly with state
                 figures of $127 per month for median gross rent and a median value of owner occupied
                 housing of $18,800.

                 INDUSTRIAL EMPLOYMENT

                 As shown in Table D-22, the majority of employment in Rock Hall occurs in the area of
                 Wholesale and Retail Trade closely followed by the Construction and Manuf acturing
                 sectors, with emphasis on marine related activities in this latter category. Note should
                 be made that while employment information on the fisheries sector was not available,
                 this sector is very important to the local economy. The Construction and Manufacturing
                 sectors differ markedly from county and state figures as seen in Table D-22. Thismay
                 be a function of the skill composition reflected in Table D-21 which indicates a definite
                 lack of pro'f essional and technical workers with a rather high proportion of relatively
                 low-skilled workers in both the community and the county.

                                                            D-33

                                                                     TABLE D-21

                                        DEMOGRAPHIC AND SOCIO-ECONOMIC CHARACTERISTICS
                                             FOR ROCK HALL, KENT COUNTY, AND MARYLAND
                                                                         (1970)

                      DEMOGRAPHIC CHARACTERISTICS                     ROCK HALL               KENT COUNTY            MARYLAND

                      Population                                            19101                     16,150           3,922,400
                      Median Age                                             34.9                       29.6                27.1
                      Percent 35 years or older                                50                       49.4                40.0

                      OCCUPATIONAL DISTRIBUTION*

                      Prof. Managerial                                        9.0                       17.7                27.6
                      Craftsmen, Foremen                                     17.1                       13.0                13.7
                      Operatives (incl. transportation)                       8.1                       16.8                13.3
                      Labor (incl. farm)                                     23.8                       16.3                 4.6
                      Farm Managers                                           1.3                        4.8                 0.7
                      Services                                               20.0                       11.6                11.6
                      Sales and Clerical                                     20.7                       19.4                28.1
                      Unemployed                                              3.9                        5.9                 3.2

                      INCOME CHARACTERISTICS

                      Median Individual Income                             $1,500                     51,630              $3,099
                      Median Family Income                                 $6,406                     $7,636             $11,063
                      Percent of families below                              14.7                       12.9                 7.7
                        poverty level

                      EDUCATIONAL CHARACTERISTICS

                      Percent of individuals 25 years                        19.7                       37.0                52.3
                        or older with High School completion

                      HOUSING CHARACTERISTICS

                      Year-round housing units                                473                      6,049           1,234,469
                      Median gross value of rent                      $74/month                  $85/month          $127/month
                      Median value of owner-occupied
                        housing                                           $12,359                   $13,100              $18,800
                      Percent of units moved into
                        in last 5 years                                        38                       40.2                52.2

                      *Based on Percent of Labor Force Aged 16 Years or Older.

                                                                     D-34

                                                                    TABLE D-22

                                                ROCK HALL 1970 INDUSTRIAL EMPLOYMENT
                                                          (Work Force 16 Yrs. or Older)

                 SECTOR                                    ROCK HALL W             KENT COUNTY            MARYLAND W

                 Construction                                    15.5                       9.3                   6.6
                 Manuf acturing                                  14.2                      20.1                  19.5
                 Public Utilities & Transportation                5.8                       3.6                   6.8
                 Wholesale & Retail Trade                        19.6                      18.4                  19.2
                 F.I.R.E. & Repair Services*                      4.5                       4.9                   8.5
                 Professional & Related Services                  8.8                      10.6                  12.3
                 Educational Services                             4.9                      10.1                   8.1
                 Public Administration                            3.1                       3.6                  13.5
                 Other                                           23.6                      19.1                   5.5
                          Total                                  100.0                    100.0                 100.0

                 *F.I.R.E. is an acronym for Finance, Insurance, and Real Estate.

                 Though unemployment does not appear to be substantially greater in Kent County than in
                 the State of Maryland, in general, the county work force has been designated since
                 August 1972 as substantially and persistently unemployed by the Department of
                 Commerce Economic Development Administration.

                 TRANSPORTATION

                 Railroads

                 Under an agreement with Penn Central in 1976, the Maryland Department of
                 Transportation (DOT) took over the operation of certain branch lines on the eastern shore
                 of Maryland. DOT in turn entered into several short line operating agreements to have
                 those lines operated under DOT subsidy as the Maryland - Delaware Railroad Company.
                 One of these lines, the Townsend-Chestertown line, serves Chestertown twice weekly and
                 is the closest rail service available to Rock Hall. This line f rom Chestertown connects
                 with a Conrail line at Townsend, Delaware, for all points north.

                 Highways

                 The highway system serving Kent County includes U.S. Route 301, a dual lane highway
                 which crosses the east end of the County and provides a through, north-south route
                 extending from the New Jersey Turnpike across the Chesapeake Bay Bridges and thence
                 southward to Florida. Route 213 is a two lane State highway which runs f rom the lower
                 east end of the County to the north end of the County and connects with U.S. Route 301
                 and U.S. Route 50 to the south and U.S. Route 40 to the north. Route 291, a two lane
                 State highway, runs east and west across the County. Route 291 connects with Route
                 213 and U.S. Route 301 and provides access to Dover, Delaware, and U.S. Route 13.

                                                                 D-35

                    The basic street system in Rock Hall is formed by Maryland Routes 20 and 445, which
                    connect Rock Hall with the county seat at Chestertown (approximately 15 miles to the
                    east), Tolchester Beach to the north and Eastern Neck to the south. The heaviest traffic
                    flow occurs on Route 20 in the direction of Chestertown where volume approximates
                    .3,000 vehicles per day. Except in the immediate vicinity of Rock Hall itself, most of the
                    streets related to this basic system are discontinuous, dead ending in various waterways
                    and marshy water areas or deteriorating into dirt trails. Many of the residential streets
                    have never been developed and thus much of the land area around the town is
                    inaccessible.

                    Truck Service

                    The American Motor Carrier Directory lists 10 motor freight common carriers of general
                    commodities authorized to serve Kent County with truckload and/or less-than-truckload
                    service.

                    Bus Service

                    Trailways furnishes Kent County with daily interstate bus service that provides
                    connections with any major point. Both local and long distance schedules are available
                    including through bus service to Philadelphia and New York. Through bus service from
                    Chestertown to New York requires less than four hours travel time.

                    Water Transportation

                    Rock Hall Harbor is used extensively by fish and oyster boats with the major commodity
                    shown in Table D-23 to be fish products. The remainder of Kent County's waterways are
                    infrequently used for commercial transportation. Aside from occasional visits by
                    petroleum tankers and grain barges to Chestertown, traffic on the rivers is primarily
                    recreational.

                    Rock Hall Harbor itself has an approach channel 10 feet in depth and 100 feet wide and
                    measuring 2,000 feet from the entrance through the breakwater to the center of that
                    portion of the channel of the same depth that has been dredged parallel to the harbor
                    terminals. The harbor is extensively developed with marinasi repair yards, marine
                    facilities for the unloading and loading of seafood, an ice manufacturing plant and
                    facilities for obtaining fuel, water, provisions, and motel accommodations.

                    Outside the harbor itself, much of the shoreline is marshy with water depths of six feet
                    reached only at distances of 500 feet or more from the shore. As a result, only facilities
                    for small boats have been developed in the major marina located outside of the harbor at
                    the end of Rock Hall Road in the Gratitude area. This facility has a restaurant, marine
                    supply store, boat slips, fuel and boat rentals.

                    The Chester River has a 13-f oot channel which permits small oil tankers and grain barges
                    to serve Chestertown. The Port of Cambridge, approximately 50 miles south of
                    Chestertown, is the nearest deepwater port to Kent County. The Port of Baltimore is
                    located approximately 50 miles from Rock Hall.

                                                              D-36

                                                       TABLE D-23

                                      ROCK HALL 1980 WATERBORNE COMMERCE

                 HARBOR OR WATERWAY                         COMMODITY                        TONS

                 Rork Hall Harbor, MD          0911 Fresh Fish, Except Shellfish                 63
                                               0912 Shellfish, Except Prepared                 308
                       Total                                                                   371

                 SOURCE: Waterborne Commerce Statistics of the United States calendar year 1980,
                           Department of the Army, Corps of Engineers, February 1982.

                 NOTE: No Commerce was reported in calendar year 1981.

                 Air Service

                 Baltimore-Washington International Airport is located approximately 55 miles from Rock
                 Hall. There are more than 300 daily flights providing direct and connecting service to
                 hundreds of domestic and overseas destinations. All scheduled airlines operating at
                 Baltimore-Washington International also carry air freight. In addition, scheduled air-
                 cargo freight service is available between BWI and numerous points.

                 The Greater Wilmington Airport is approximately 60 miles from Rock hall. Altair
                 Airlines provides six flights in and out every day. Air freight service is also provided at
                 the Airport. There are two 7,000-foot and two 5,000-foot runways at the Airport.
                 Scheduled air taxi service is available.

                 COMMUNICATIONS

                 Postal Facilities

                 Kent County is served by I I post offices. The largest is a first class facility in
                 Chestertown. The County also has two second class, five third class and three fourth
                 clasi offices. Rock Hall itself has a second class post office.

                 Telephone Services

                 The Chesapeake and Potomac Telephone Company of Maryland, provides telephone
                 service for the entire County. Nationwide direct distance dialing is one of the services
                 available to customers. Western Union, IT&T and Comsat also provide
                 telecommunications services.

                 Radio and Television

                 Radio reception is excellent from Baltimore, Washington, D.C., Philadelphia, Wilmington,
                 Dover and eastern shore stations. There is one radio station in Kent County - WC r1j,
                 (Chestertown) - which is a 250 watt station. Television reception is excellent on all
                 national networks from Baltimore and Washington, D.C.

                                                           D-37

                    NewsE!@pers

                    There is one weekly newspaper published in Kent County, the Kent County News with a
                    paid circulation of approximately 7, 100. in addition to this newspaper, the County is also
                    served by daily and Sunday papers from Baltimore, Washington, D.C., Wilmington,
                    Philadelphia, and New York.

                    UTILITIES

                    Electricityand Gas

                    The Delmarva Power and Light Company of Maryland supplies electricity to most of the
                    towns and developed areas of the County. The distribution system of the Choptank
                    Electric Cooperative is interconnected with Delmarva Power and Light Company of
                    Maryland and provides electrical service to the rural portions of the County not served
                    by the Delmarva Power and Light Company. Propane gas and fuel oil is available, in Kent
                    County from local dealers and distributors.

                    Water and Sewerage

                    There are municipal water systems in Betterton, Chestertown, Fairlee, Galena
                    Kennedyville, and Rock Hall. The Rock Hall water system has a. rated plant capacity of
                    500,000 gallons per day. Water is pumped from three wells and stored in a 125,000 gallon
                    elevated tank. The water distribution system serves all of the present development in
                    the town as well as some of the housing along Route 20 to the east. Outside of the town
                    limits, houses and businesses must rely upon individual on-site wells for their water
                    supply. It appears that the present groundwater resources have sufficient reserve
                    potential to accommodate growth in and near the town to the year 1985.

                    There are municipal sewerage systems in Betterton, Chestertown, Fairlee, Galena,
                    Kennedyville, Millington, and Rock Hall. Rock Hall's system is the lagoon type. This
                    system provides secondary treatment and has a plant capacity of approximately 250,000
                    gallons.

                    COUNTY SERVICES

                    County police protection is provided by the sheriff and deputies, the Maryland State
                    Police, and municipal pblice service. The Sheriff has one part time and three full time
                    deputies. The State Police maintains a force in Kent County with headquarters in
                    Chestertown. The municipal police force of Chestertown consists of six full time
                    policemen. Rock Hall also provides police protection.

                    Fire protection is provided by six volunteer municipal fire departments throughout the
                    county. The six stations are located in Betterton, Chestertown, Galena, Kennedyville,
                    Millington, and Rock Hall. In addition, mutual aid arrangements exist with stations in
                    the communities of Church Hill, Crumpton, Centreville, and Sudlersville in Queen Anne's
                    County, and with Cecilton in Cecil County. Twenty-f our hour ambulance service is
                    provided by rescue companies from all of the county fire departments.

                                                              D-38

                The Town of Rock Hall has regular refuse collection twice every week. Most areas of
                the County contract for service by commercial trash companies. Three county sanitary
                landfills are available for waste disposal.

                EDUCATIONAL SERVICES

                The educational program in Kent County includes grades kindergarten- 12. There are a
                total of eight public schools having a total enrollment of approximately 2,700 students.
                There are three non-public schools in the county with a total estimated enrollment of
                230. Rock Hall itself has two schools - one elementary and one high school having a total
                enrollment of approximately 560 students. These schools are located in the vicinity of
                Catholic, Main, and Boundary Avenues.

                There are a number of.institutions providing higher learning in the area. Washington
                College, a four-year liberal arts and sciences institution, with an enrollment of
                approximately 800 students, is located in Chestertown. Chesapeake College serves Kent,
                Queen Anne's and Talbot Counties and has an enrollment of approximately 1,400
                students. It is located approximately 22 miles south of Chestertown. Vocational,
                terhnical and industrial training programs also exist in the County.

                HEALTH SERVICES

                Hospital and medical care is provided by a number of institutions. The Kent and Queen
                Anne's General Hospital is a nonprofit facility located in Chestertown. It is a fully
                arcredited 80 bed facility and provides general medical, surgical, and obstetrical
                services, emergency room service, and coronary care unit service. The Kent County
                Health Department located in Chestertown, provides health services for the County in
                cooperation with the Maryland Department of Health and Mental Hygiene.

                CULTURAL INSTITUTIONS

                Libraries and Churches

                The Kent County Public Library, located in Chestertown, currently operates in a 1,900
                square foot facility. The library has a book collection of more than 21,000 volumes.
                Churches representing most major denominations are located in Kent County. Rock Hall
                itself -possesses several churches of various denominations.

                Historic Sites

                There are 18 sites in the Rock Hall area which are considered to be of significance to the
                history of the town and county and which will be submitted for inclusion in the National
                Register of Historic Places. One of these sites, Hinchingham, is currently listed in the
                National Register.

                                                         D-39

                     In terms of reported archeological sites in the vicinity (approximately a one mile radius)
                     of Rock Hall, the Maryland Geological Survey has indicated that there are six currently
                     reported of medium sensitivity (i.e., may be eligible for inclusion in the National
                     Register). The Maryland Geological Survey also notes that there is a high potential for
                     significant archeological resources within Rock Hall due to its use as a landing in the
                     early 17th century.

                     LAND USE

                     Existing Land Use

                     Early development of Kent County was devoted almost exclusively to the conversion of
                     wooded land to agricultural use. Several early settlements were established on the
                     waterways as shipment points for agricultural products. Those settlements grew into the
                     towns of Chestertown on the Chester River, and Georgetown and Betterton on the
                     Sassafras River. Rock Hall, with a good harbor off the Bay, grew as a center for fishing
                     and boat building.

                     In general, the development pattern of Kent County is characterized by clusters around
                     towns, widely scattered strips and patches of non-f arm residences in the undeveloped
                     areas of the county. Much of the future residential, commercial and industrial
                     development will be encouraged near the towns where public services can most
                     conveniently and economically be provided. The county projects that farm residences
                     will continue to decline.

                     Existing land use in Kent County is shown in Table D-24. The table indicates that less
                     than seven percent of the total county area is developed. Agriculture occupies by far the
                     greatest percentage of area. It is significant to note that almost as much land is used for
                     streets and roads as f or single-family residences. Approximately 25 percent of the total
                     developed residential area lies within, or within one mile of the towns of Chestertown,
                     Rock Hall, Betterton and Millington. Even if the developed area triples by the year 1990,
                     only a very small percentage of the County will be developed.

                                                              TABLE D-24

                                           ROCK HALL AND KENT COUNTY LAND USE
                                                      KENT COUNTY I                  ROCK HALL      2

                                                               PERCENT OF                    PERCENT OF
                     TYPE OF LAND USE               ACRES      DEV.AREA          ACRES       DEV.AREA

                     Total Residential                2,888          24.5          104.6          52.0
                     Total Commercial                   443           3.8             8.5          3.5
                     Total Industrial                   152           1.3             9.6          3.0
                     Public & Semi-Public             5t278          44.8           28.4          10.5
                     Streets & Roads                  2,392          20.3           50.8          31.0
                     1 Represents Land Use in Kent County as of 1970.
                     2 Represents Land Use in Rock Hall as of 1965.

                                                                  D-40

                The existing land use in Rock Hall for each major category is also shown in Table D-24.
                The table demonstrates the predominance of residential uses in the community.
                Residential categories constitute 52 percent of the total of developed land in the
                planning area. The next largest use of land (exclusive of streets) is the public and semi-
                public category. Of the total developed land, 48 percent was vacant in 1968. It is
                important to note that 50 percent of the incorporated area and 86 percent of the
                planning area is vacant (as of 1968). Much of this vacant land is actually in agricultural
                use, indicating the importance which agriculture plays in the economic life of the
                community.

                The overall shape of land use is quite disjointed with open spaces scattered throughout.
                The most obvious limitations on development are imposed by the surrounding bodies of
                water - the Bay, the Harbor, Swan Creek, and the Haven.

                The Main Street central business district consists of developed frontage on both sides of
                a single block. Typical of the business areas of many small towns, it has grown in a
                somewhat haphazard fashion over the years, as houses along the street frontage have
                been converted to commercial usage on their ground floors while continuing residential
                occupancy upstairs. As expansion of the business area has occurredo it has been in a
                restricted area along Main Street, with a few scattered establishments on Maryland
                Route 20 and on Sharp Street. The commercial uses found in the business area are
                typical of a small community, being oriented toward meeting the daily needs of the
                populace - food stores, drug stores, variety stores, hardware stores, barber and beauty
                shops, small restaurants and several service stations. For larger purchases of such items
                as f urniture and appliances, Rock Hall residents must travel to regional shopping areas in
                Chestertown. The business district has not had much in the way of recent construction
                outside of two new banks located on Route 20, a liquor store, and several gasoline
                stations.

                Surrounding the commercial core are the older residential areas of town which also
                include a variety of public and semi-public uses such as town offices and a fire station,
                post office and several churches. For the most part, these buildings are in good
                condition.

                Industrial.land use'consists primarily of concentrations of marine-related activities in the
                area of the intersection of Sharp Street and Chesapeake Avenue. Some expansion of the
                present area is devoted to seafood packing and processing and boat repair facilities.

                Future Land Use

                Proposed land use for Rock Hall retains the basic structure of the present community.
                Commercial activity will continue to be centered along Main Street between Sharp
                Street and Rock Hall Road. Medium density and high density housing areas surround the
                commercial core except toward the northeast where there is a proposed industrial area.
                Moving out from the center of town, housing densities would become lower. On the
                Gratitude peninsula, medium density housing would be combined with marine oriented
                commercial uses, with industrial uses of a marine nature located in the Rock Hall Harbor
                area. Throughout the planning area, many of the marshy areas along the bay f ront would
                be retained as permanent open space.

                                                          D-41

                      Within Kent County the main goal of the County plan is to concentrate most residential
                      development in the existing towns of Chestertown, Rock Hall, Betterton, and Galena.
                      Non-f arm residential construction is to be limited to maintaining the openness of the
                      land. The plan f or commercial and industrial development also stresses the
                      concentration of this type of activity within the existing towns. Along Route 20 a
                      sizable area is proposed for the development of services or manufacturing industries
                      which would draw employment from Rock Hall and nearby communities. Among the
                      possible uses which might be accommodated in this area are warehousing, machinery
                      repair, food processing, and other various light manufacturing activities.

                      ST. MICHAELS, MARYLAND

                      DEMOGRAPHIC CHARACTERISTICS

                      St. Michaels, Maryland, is a small town located on the eastern portion of Talbot County,
                      approximately 10 miles west of Easton. In 1970, St. Michaels had an estimated
                      population of 1,470. When compared to County - wide figures, St. Michaels' demographic
                      characteristics are similar.- The median age of St. Michaels population was 35.8 years
                      with 51 percent of the population aged 35 years or older. Talbot County figures reflect a
                      1970 median age of 35.1 years and a population in which 50 percent are age 35 years or
                      older. Both sets of statistics are significantly higher than State figures for these
                      categories. Historical population trends for St. Michaels, Talbot County, Maryland, and
                      the United States are presented in Table D-25.

                                                                    TABLE D-25

                                                  HISTORICAL POPULATION FOR THE U.S.,
                                            MARYLAND, TALBOT COUNTY, AND ST. MICHAELS
                                                                    (1940-1980)

                                                    1940             1950              1960            1970             1980

                      UNITED STATES 132,165,000               151,326,000      179,323,000     203,212,000      226,504,825
                        % change                      -               14.5             18.5            13.3             11.5

                      MARYLAND               18,221-000         2,343$000         3,100,000       3$922,400       4,216,941
                                                   y
                        % change                      -               28.6             32.3            26.5               7.5

                      TALBOT COUNTY               18,784           19,428            21,578          23,682           25,604
                        % change                      -                3.4             11.1              9.8              8.1

                      ST. MICHAELS                 1,309             19470            1,484            1,470          1,301
                        % change                      -               12.3               0.9           -0.9           -11.5

                      As can be seen from Table D-25, population in St. Michaels has exhibited static or
                      decreasing growth since 1950. However, this trend is not the case for Talbot County.
                      Based upon OBERS Series E projections f or the subregion, the estimated population

                                                                     D-42

                 growth for Talbot County and for St. Michaels is shown in Table D-26. Note that linear
                 regressions applied to the population of St. Michaels over the past 40 years yielded a
                 significantly lower population estimate for the year 2020 in particular, with relatively
                 minor differences in other years.

                                                         TABLE D-26

                                     POPULATION PROJECTIONS FOR ST. MICHAELS
                                                   AND TALBOT COUNTY
                                                          (1980-2020)

                                                1980*                1990            2000              2020

                 Talbot County                 25,604              29,200          32,100            41,100

                 St. Michaels                   1,301                1,700          1,800             2,200
                 (Series E)

                 St. Michaels                   1,301                1,600          1,700             1,800
                 (Regression)

                   *1980 populations presented for St. Michaels and Talbot County are the final counts as
                   determined by the Bureau of the Census.

                 OCCUPATIONAL DISTRIBUTION

                 Occupational distribution in St. Michaels seems to be concentrated in such areas as
                 Craftsmen and Foremen, Services, and Labor. These sectors employ 19.4, 18.6 and 17.3
                 pecent of the work force, respectively. At the County level, the Sales and Clerical
                 category constitutes 20.3 percent of the work force, while Professional and Managerial
                 accounts for 19.5 percent, and Craftsmen and Foremen account for 16 percent of the
                 work force. State figures show that Sales and Clerical workers make up 28.1 percent of
                 the work force, Professional workers represent 27.6 percent and Craftsmen & Foremen
                 constitute 14 percent. Unemployment in the community is very low, at less than three
                 percent of the wo@k force as shown in Table D-27,'and seems to be marginally lower in
                 both St. Michaels and Talbot County than in the State.

                 INCOME CHARACTERISTICS

                 Individual median income in the community of St. Michaels in 1970 was $1,916. Median
                 family income was $7,508 with 13.9 percent of the families below the poverty level as
                 shown in Table D-27. Individual median income for the county in 1970 was $2,422 with
                 median family income of $8,073 and 12.5 percent of the families considered to be below
                 the poverty level. Individual median income for the State in 1970 is shown in Table D-27
                 to be significantly higher at $3,099 with the median family income also substantially

                                                             D-43

                                                                    TABLE D-27

                                        DEMOGRAPHIC AND SOCIO-ECONOMIC CHARACTERISTICS
                                          FOR ST. MICHAELS, TALBOT COUNTY AND MARYLAND
                                                                         (1970)

                     DEMOGRAPHIC CHARACTERISTICS ST. MICHAELS                              TALBOT COUNTY MARYLAND

                     Population                                         1,470                        23,682           3,922,400
                     Median Age                                          35.8                          35.1                27.1
                     Percent 35 years or older                           51.0                          50.0                40.0

                     OCCUPATIONAL DISTRIBUTION*

                     Prof. Managerial                                    13.6                          19.5                27.6
                     Craftsmen, Foremen                                  19.4                          16.0                13.7
                     Operatives (incl. transportation)                   15.1                          15.2                13.3
                     Labor (incl. farm)                                  17.3                          io.9                 4.6
                     Farm Managers                                       0.7                             2.6                0.7
                     Services                                            18.6                          15.3                11.6
                     Sales & Clerical                                    15.3                          20.3                28.1
                     Unemploydd                                          2.9                             2.5                3.2

                     INCOME CHARACTERISTICS

                     Mediari Individual Income                        $1,916                         $2,422              $3,099
                     Median Family Income                             $7,508                         $8,073             $11,063
                     Percent of families below                           13.9                          12.5                 7.7
                       poverty level

                     EDUCATIONAL CHARACTERISTICS

                     Percent of individuals 25 years or                  23.7                          39.1                52.3
                       older with high school completion

                     HOUSING CHARACTERISTICS
                     Year-round housing units                            606                          8,907        $11,234,469
                     Median Gross value of rent                  $78/month                      $90/month             27/month
                     Median value of owner-occupied
                       housing                                       $12,948                       $16p2OO              $189800
                     Oercent of units moved into in
                       last 5 years                                      48.3                          39.0                52.2

                     *Based on Percent of Labor Force Aged 16 Years or Older.

                                                                     D-44

                 higher at $11,063 with only 7.7 percent of the families defined to be below the poverty
                 level. Based upon OBERS per-capita income projections, the. compound annual growth
                 rate of per capita income for the period 1980-2020 for St. Michaels and Talbot County is
                 projected to be 2.9 percent.

                 EDUCATIONAL CHARACTERISTICS

                 In 1970, approximately 76 percent of the population aged 25 years or older had not
                 completed high school. These figures compare with county totals of 61 percent and State
                 totals of a much lower 48 percent.

                 HOUSING CHARACTERISTICS

                 The number of housing units in St. Michaels in 1970 was 606 with a median gross value of
                 rent of $78 per month and a median value of owner-occupied housing of $12,948. County
                 figures indicate a median gross value of rent of $90 per month and a median value of
                 owner-occupied housing of $16,200 in 1970. These figures are well below the State
                 figures of $127 per month for median gross rent and 18,800 for median value of owner-
                 occupied housing.

                 INDUSTRIAL EMPLOYMENT

                 As shown in Table D-28, the majority of employment in St. Michaels is in the area of
                 Manufacturing closely followed by Wholesale and Retail Trade and the Construction
                 sectors. Most of the manufacturing in St. Michaels is water-oriented, engaged directly in
                 fishing activity or in marine repair services with Eastern Shore Clam (40) and St.
                 Michaels Oyster (25) being the most significant employers in the area.

                                                           TA13LE D-28

                                      ST. MICHAELS 1970 INDUSTRIAL EMPLOYMENT
                                                 (Work Force 16 yrs. or Older)

                                                                                   TALBOT
                 SECTORS                               ST. MICHAELS              COUNTYM MARYLANDW

                 Construction                                  14.5                  10.0                  6.6
                 Manuf acturing                                23.1                  16.7                19.5
                 Public Utilities & Transportation              3.6                   5.0                  6.8
                 Wholesale & Retail Trade                      17.3                  21.6                19.2
                 F.I.R.E. & Repair Services*                    3.3                   4.8                  8.5
                 Professional & Related Services                8.7                  16.3                12.3
                 Educational Services                           5.2                   6.2                  8.1
                 Public Administration                          1.8                   3.6                13.5
                 Other                                         22.6                  15.8                  5.5
                       Total                                  100.0                _f _0000              100.0

                 *F.I.R.E. is an acronym for Finance, Insurance, and Real Estate.

                                                               D-45

                     County figures shown in Table D-28 reflect a preponderance of Wholesale and Retail
                     Trade employment, with Manufacturing and Professional and Related Services closely
                     behind. State and County figures indicate a much larger proportion of the work force in
                     Professional and Related Services again underscoring this shortcoming at the local level.

                     TRANSPORTATION

                     Railroads

                     Under an agreement with the Penn Central Railroad dated April 1, 1976, Maryland DOT
                     took over the operation of certain branch lines on the eastern shore. Maryland DOT, in
                     turn, entered into several short line operating agreements to have those lines operate as
                     the Maryland - Delaware Railroad Company. Of these lines, the Clayton-Easton line
                     serves Talbot County twice weekly hauling major commodities such as fertilizer and
                     chemicals, feed, field crops, lumber, canned or frozen food and pulpwood. There is at
                     this time no existing or anticipated link to the Town of St. Michaels. Moreover, the
                     continued subsidization of the Clayton-Easton line is questionable if present traffic
                     trends continue.

                     Highways

                     The highway system serving Talbot Counti includes U.S. Route 50, a dual lane highway,
                     which is the major north-south artery through Talbot County. U.S. Route 50 links the
                     eastern shore with the Baltimore-Washington area and point's west via the Chesapeake
                     Bay bridges. Headed south, U.S. Route 50 joins U.S. Route 13 and links the eastern shore
                     with Norfolk and southern points via Vie Chesapeake Bay Bridge-Tunnel. U.S. Route 50
                     also joins U.S. Route 301 and then onward to the New Jersey Turnpike. There are five
                     Maryland routes which supplement U.S. Route 50 in Talbot County.

                     Maryland Route 33 runs north-south through St. Michaels and is the only through street in
                     the town. This street connects St. Michaels with Route 50 at Easton to the east and with
                     Tilghman Island to the west. All other north-south streets in St. Michaels eventually
                     dead end. The east-west streets in the town are mostly dead ends as well, either ending
                     at the water's edge or at the railroad right-of -way. Aside from Route 33, St. Michaels
                     has no transportation links with the rest of the state. With the exception of the
                     northwestern portion of the town, the existing streets are in fair condition and are
                     adequate to handle the local traffic.

                     A 1970 study by the state shows two major projects in the St. Michaels area. The first is
                     the "St. Michaels bypass" and the second is the dualization of Route 33 from Rio Vista to
                     an intersection with Route 50 just north of Easton. As conceived, the bypass would start
                     approximately one mile north of the present town limits bearing to the west and would
                     run roughly along the old railroad right-of-way intersecting Route 33 in the vicinity of
                     Lincoln Avenue in Rio Vista. This proposed dualization of Route 33 could be as much as
                     20 years in the future.

                                                                D-46

                Truck Service

                The American Motor Carrier Directory lists I I motor freight common carriers of general
                commodities authorized to serve Talbot County with truckload and/or less-than-
                truckload service. Trucking service in St. Michaels is on an "as required" basis. This is
                not likely to change in the foreseeable future.

                Bus Service

                Trailways provides Talbot County with daily bus service and maintains a terminal in
                Easton. There are five scheduled daily trips to Washington, D.C. and Baltimore and five
                daily round trips to Wilmington. There is currently no public transportation in St.
                Michaels.

                Water Trans2ortation

                Commodity movements in St. Michaels Harbor are indicated in Table D-29.
                Understandably, the commodities are exclusively water-oriented.

                                                       TABLE D-29

                                    ST. MICHAELS 1981 WATERBORNE COMMERCE

                HARBOR OR WATERWAY                           COMMODITY                          TONS

                St. Michaels Harbor, MD         0911 Fresh Fish, except shellfish                    4
                                                0912 Shellfish, except prepared                  6,701
                                                       TOTAL                                     6,705

                SOURCE: Waterborne Commerce Statistics of the United States Calendar Year 1981,
                           Department of the Army, Corps of Engineers, February 1983.

                Air Service

                Easton Municipal Airport, about two miles north of Easton on U.S. Route 50, has two
                paved, lighted 4,000-foot runways. Scheduled service to Baltimore and Washington, D.C.
                is provided by private airlirle. Facilities and services include fuel, storage and outside
                tiedown, instruction, rental planes, unicom radio and aircraft maintenance.
                Accommodations for corporate aircraft are available. There is also a small private
                airfield located approximately five miles west of St. Michaels.

                Baltimore-Washington International Airport is located about 55 miles from Easton. The
                facility is owned by the Maryland Department of Transportation and managed and
                operated by its State Aviation Administration. There are an average of 300 flights daily
                providing air service between BWI and more than 125 North American cities (plus many
                overseas and foreign destinations) with convenient connecting flights to hundreds of
                other cities. Washington National Airport, about 70 miles from Easton, has up to 560
                scheduled operations (landings and takeoffs) daily. National offers jet and non-jet flights
                or connections to every major city in the United States.

                                                           D-47

                    COMMUNICATIONS

                    Postal Facilities

                    Talbot County is served by 16 post offices. The largest of these is the first class office
                    located at Easton. This office has 60 employees and has an annual revenue in excess of
                    $7,080,000. There are two second class offices located at Oxford and St. Michaels.
                    Thirteen third and fourth class offices are located throughout the County.

                    Telephone Services

                    The Chesapeake and Potomac Telephone Company of Maryland, provides telephone
                    service f or Talbot County. Nationwide direct distance dialing is available to all
                    customers. Additional suppliers of telecommunications services include Western Union,
                    IT&T, and Comsat.

                    Radio and Television

                    WEMD (AM and FM) in Easton is the only radio station in Talbot County. WCEM (AM and
                    FM) in Cambridge is in neighboring Dorchester County. Radio reception is available on
                    all major networks from Baltimore and Washington, D.C. Television reception is
                    available for all major networks from Baltimore, Salisbury, and Washington, D.C. and
                    cable antenna television is available from Cambridge.

                    Newspapers

                    There are two daily (Monday through Friday) newspapers published in Easton: The Star
                    Democrat with a circulation of about 10,000 and the Talbot Banner with a circulation of
                    about 11,000. In addition, daily and Sunday papers from Baltimore, Salisbury, and
                    Washington, D.C. and the daily paper from Wilmington, Delaware, have a wide
                    circulation in the County.

                    UTILITIES

                    Electricity and Gas

                    There are four sources of power available in Talbot County. These include the Easton
                    Utilities Commission, the St. Michaels Utilities Commission, the Choptank Electric
                    Cooperative, Inc. and the Delmarva Power and Light Company. The St. Michaels
                    Utilities Commission serves parts of Talbot County and the incorporated town of St.
                    Michaels. Electric power is purchased wholesale from Delmarva Power and Light
                    Company of Maryland. St. Michaels has two substations to serve its present loads, and
                    has purchased land for a third substation site to accommodate future demands.

                    Natural gas is supplied in the Town of Easton by the Gas Department of the Easton
                    Utilities Commission. The supply of gas is adequate to serve existing loads only. No
                    extensions are being made to the gas system and no additional commercial or industrial
                    customers are being added to the system. Other areas of the County utilize propane gas
                    which is available from local distributors. All grades of fuel oil are available in Talbot
                    County from local distributors.

                                                             D-48

                Water and Sewerage

                The towns of Oxford, St. Michaels, and Trappe have central water supply systems
                supplied by wells. The Aquia Formation is the primary source of water in an area
                southwest of Easton (including the Bailey's Neck and Oxford Neck areas) and parts of the
                St. Michaels - Tilghman Neck area. Aquifer characteristics of the'Aquia Formation are
                as follows: the transmissibility is relatively low, ranging from 2,000 to about 5,000 gpd
                per foot and the permeability is also low, ranging from 45 to 79 gpd per square foot. The
                Aquia lies 550 to 620 feet below sea level. The waterbearing sands are about 40 to 65
                feet thick.

                COUNTY SERVICES

                Law enforcement agencies in the County include the Sheriff's office, the State Police,
                and town police departments in Easton, Oxford, St. Michaels, and Trappe. There are
                seven volunteer fire companies that provide protection for Talbot County. Each
                company has a Class A rated pumper. All companies are connected by a central alarm
                system. County-wide ambulance service is available through volunteer fire companies on
                a 24-hour basis.

                Municipal refuse collection is provided within the corporate limits of Easton. The
                incorporated towns of Oxford, St. Michaels, and Trappe provide refuse collection through
                commercial contractors. There is a landfill about three miles east of Easton.

                EDUCATIONAL SERVICES

                There are 10 schools located in Talbot County having a total enrollment of approximately
                3,800 students. There are also six non-public schools in the County with a total
                enrollment of approximately 900 students. The Talbot County Vocational-Technical
                Center is located in Easton. This facility provides training in areas ranging from
                mechanics to construction to food services. There are no institutions of higher education
                located in Talbot County. There are three colleges nearby - Chesapeake College   ,in
                Queen Anne's County, Washington College in Kent County, and Salisbury State College in
                Wicomico County.

                HEALTH SERVICES

                Memorial Hospital at Easton is a completely modern, fully'accredited, 200 bed facility.
                It has a staff of 97 active or consulting physicians and surgeons. The hospital also
                conducts a 32 month accredited diploma School of Nursing. The Talbot County Health
                Department is located in Easton. It is an integral unit of the Maryland State Department
                of Health and Mental Hygiene. The Talbot County Health Department has a Home
                Health Program available to anyone needing intermittent nursing services or physical
                therapy. There are two nursing homes in the County. One is located in Easton and one
                near St. Michaels. There is also an Extended Care Facility at the Memorial Hospital in
                Easton.

                                                          D-49

                     CULTURAL INSTITUTIONS

                     Libraries and Churches

                     The Talbot County Free Library is located in the south wing of the Talbot County
                     Courthouse in Easton. The Library houses a collection of some 59,000 books and 1,245
                     phonograph records, and subscribes to 110 magazines and 8 newspapers. In addition there
                     is a branch library in Oxford with a collection of approximately 4,000 volumes. There is
                     also a special Outreach Reading Room in the Neighborhood Service Center in Easton. A
                     new facility was constructed in 1976. Churches representing most major denominations
                     are located throughout the County. St. Michaels and vicinity has approximately six
                     churches of various denominations.

                     Historic Sites

                     There are 13 sites in the St. Michaels vicinity which are considered by the Maryland
                     Historical Trust to be of significance to the history of the town and county and which
                     will be submitted for inclusion in the National Register of Historic Places. Three of
                     these sites, Crooked Intention, Sherwood Manor, and Victorian Corn Cribs are currently
                     listed in the National Register. The Chesapeake Bay Maritime Museum is also located in
                     the Harbor area of St. Michaels and maintains collections which include maritime
                     records, artifacts, and memorabilia.

                     The Maryland Geological Survey lists no recorded archeological sites in the St. Michaels
                     area (within a one mile radius of the town) but notes that the potential f or sites is rather
                     high. The Maryland Geological Survey also notes that there is a high potential for
                     significant archeological resources within St. Michaels.

                     LAND USE

                     Existing Land Use

                     The general pattern of existing zoning in Talbot County calls for agricultural use in the
                     eastern half of the county and mostly waterfront residential usage west of Route 50.
                     Approximately 70 percent of the total county land, or approximately 125,000 acres is
                     farmland. The single largest area of development has occurred in and around the town of
                     Easton. Commercial and industrial land uses have tended for.the most part to locate in
                     and around the incorporated towns though there is some scattered industrial use at places
                     such as Cordova.

                     As can be seen from Table D-30, the majority of land in the St. Michaels planning area is
                     used f or residential purposes (44.7 percent). Public and semi-public lands occupy 9.1
                     percent and streets, railways, and utilities occupy 37.2 percent of the total land in the
                     planning area. Much of the recent residential development in the St. Michaels area has
                     occurred southeast of the town itself in the Rio Vista area. Approximately 28 percent of
                     the town area of St. Michaels is undeveloped with the majority in two areas: vacant land
                     on the west side of the town near the railroad tracks and farm land, and on the north side
                     of town between Talbot Street and the harbor.

                                                                 D-50

                                                            TABLE D-30

                                 LAND USE WITHIN CORPORATE LIMITS OF ST. MICHAELS

                                                                                               PERCENT OF
                  TYPE OF LAND USE                              ACRES                       DEVELOPED AREA

                  Residential                                   222.4                                44.7
                  Commercial                                      18.2                                3.6
                  Industrial                                       9.3                                1.9.
                  Public & Semi-Public                            46.0                                9.1
                  Streets, Rails, Utilities                     186.7                                37.2

                  St. Michaels commercial activity is situated along both sides of Talbot Street for nearly
                  its entire length, although the highest concentration exists between Mill and Mulberry
                  Streets. This section provides residents with day-to-day shopping needs and services. A
                  second area of commercial activity is located in the vicinity of St. Michaels Harbor and
                  consists of marine-oriented activities such as marinas, boat yards, restaurants and
                  related businesses. There is substantial room for the development of commercial
                  enterprises and efforts to locate such endeavors in other areas will probably be
                  discouraged.

                  The industrial area in St. Michaels is located in the harbor area which is the center for
                  marine-related industry. Relatively little space has been allocated for industrial
                  development as the geographical location of the town and the small labor market tend to
                  discourage this sort of development.

                  Future Land Use

                  Most of the area in St. Michaels proposed for development is for low density residential
                  use. There is provision for a substantial increase in parks, recreation areas, and public
                  and semi-public lands. The growth of the town will depend upon the ability of the local
                  business interests to satisfy the needs of the residents in the general area.

                  SNOW HILL, MARYLAND

                  DEMOGRAPHIC CHARACTERISTICS

                  Snow Hill, Maryland, a small community with a 1970 population of 2,201, is located in the
                  central portion of Worcester County. When compared to the State totals, the Snow Hill
                  population is somewhat aged. The median age of the 1970 Snow Hill population was 33.3
                  years with 48.3 percent of the town population 35 years of age or older. These statistics
                  compare with a State-wide median age of 27.1 years and 40 percent of the State
                  population aged 35 years or older. County figures indicate a Worcester County median
                  age of 31.5 years with 46.4 percent of the County residents 35 years of age or older.
                  Historical population trends for Snow Hill, Worcester County, the State of Maryland, and
                  the United States are presented in Table D-31.

                                                                 D-51

                                                                TABLE D-31

                                        HISTORICAL POPULATION FOR THE U.S., MARYLAND,
                                                 WORCESTER COUNTY, AND SNOW HILL
                                                                 (1940-1980)

                                               1940            1950             1960           1970            1980

                     UNITED STATES          132,165,000     15lt326,000    179,323,000     203,212,000     226,5049825
                       % change                       -             14.5           18.5            13.3            11.5

                     MARYLAND                 1,821,000       2,343vOOO       3,100,000       3,922,400       4,216,941
                       % change                       -             28.6           32.3            26.5             7.5

                     WORCESTER COUNTY 21,245                     23,148          23,733          24,442         30,889
                       % change                       -              9.0             2.5             3.0           26.4

                     SNOW HILL                     1,926          2,091           2,311           2,201          2,192
                       % change                                      8.6           10.5            -4.8            -0.4

                     Table D-31 indicates that during the decade spanning the period 1960-70, the County
                     population increased only marginally while that of Snow Hill actually decreased. This
                     out-migration of the population of Snow Hill should be cause for concern as those who
                     migrate tend to be younger and better trained members of the community. A region or
                     community which is exporting population tends not only to be exporting capital in the
                     form of local educational services invested in its outmigrants, but is left with a
                     relatively high proportion of non-workers and less productive workers, compounding its
                     economic problems.

                     Based upon OBERS Series E population projections for the subregion, the estimated
                     populations for Snow Hill and Worcester County are shown in Table D-32. Linear
                     regression techniques applied to historical data of population growth in Snow Hill over
                     the period 1940-70 yielded increasingly significant differences from OBERS Series E
                     projections.
                                                              TABLE D'32

                           POPULATION PROJECTIONS FOR SNOW HILL AND WORCESTER COUNTY

                                                      1980*            1990            2000                2020

                     Worcester County                 30,889         30,700           33,400             41,400

                     Snow Hill                        2,192           2,800            3,100              3,800
                     (Series E)

                     Snow Hill                        2,192           21500            2,600              2,800
                     (Regression)

                       *1980 populations presented for Snow Hill and Worcester County are the final counts
                       as determined by the Bureau of the Census.

                                                                   D-52

                OCCUPATIONAL DISTRIBUTION

                A large portion of the work force in Snow HH1 is employed in the Operatives Category
                (24.1 percent), followed by Sales and Clerical employees (19.9 percent). This contrasts
                with County figures which indicate a greater percentage of the work force in the
                Professional and Managerial Category (17.9 percent) as shown in Table D-33. State
                figures show the Sales and Clerical category to be at 28.1 percent followed closely by the
                Professional and Managerial group (27.6 percent). Unemployment is shown to be at very
                low levels in Snow Hill (3.8 percent) but is still higher than both the County and State
                figures at 3.2 percent of the work force.

                INCOME CHARACTERISTICS

                Individual median income in the community in 1970 was $2,166, median family income
                was $7,804, and 15 percent of the families were defined to be below the poverty level.
                This compares favorably with county figures which show individual median income at
                $1,697, family median income at $7,386 and 17.2 percent of the families with income
                below the poverty level. State levels are still higher at $3,099 for median individual
                income and $11,063 for median family income. The percentage of families defined as
                below the poverty level State-wide is at 7.7 percent.

                EDUCATIONAL CHARACTERISTICS

                Figures indicate that in Snow Hill in 1970 approximately 27.9 percent of the population
                aged 35 years or older had completed high school. This compares unfavorably with a
                figure of 52 percent for the State of Maryland.

                HOUSING CHARACTERISTICS

                The number of year-round housing units in Snow Hill in 1970 was 822 with a median gross
                value of rent of $82 per month and a median value of owner-occupied housing of $12,403
                as shown in Table D-33. County figures display a median gross value of rent of $79 per
                month with a median value of owner-occupied housing of 11,400. These figures are
                substantially lower than state figures of $127 per month as the median gross value of
                rent and $18,800 as the median value of owner-occupied housing.

                INDUSTRIAL EMPLOYMENT

                As shown in Table D-34, almost 35 percent of the Snow Hill work force is employed in
                the Manufacturing sector. At 14.4 percent of the work force, the Wholesale and Retail
                Trade sector is a distant second. The distribution of Snow Hill's work force among
                sectors differs somewhat from the County and the State percentages but similarity is
                exhibited among the three jurisdictions in that the Manufacturing and Wholesale and
                Retail Trade sectors are ranked one and two, respectively, in terms of percentage of
                labor force employed.

                                                          D-53

                                                                     TABLE D-33

                                         DEMOGRAPHIC AND SOCIO-ECONOMIC CHARACTERISTICS
                                          FOR SNOW HILL, WORCESTER COUNTY9 AND MARYLAND
                                                                         (1970)

                      DEMOGRAPHIC CHARACTERISTICS SNOW HILL                           WORCESTER COUNTY               MARYLAND

                      Population                                          21201                 24,442                3,922,400
                      Median Age                                          33.3                   31.5                      27.1
                      Percent 35 years or older                           48.3                   46.4                      40.0

                      OCCUPATIONAL DISTRIBUTION*

                      Prof. Managerial                                    17.9                   17.9                      27.6
                      Craftsmen, Foremen                                  15.5                   15.1                      13.7
                      Operatives (incl. transportation)                   24.1                   17.5                      13.3
                      Labor (incl. farm)                                    54                   13.3                       4.6
                      Farm Managers                                         2:1                  4.1                        0.7
                      Services                                            15.1                   15.1                      11.6
                      Sales and Clerical                                  19.9                   16.7                      28.1
                      Unemployed                                            3.8                  3.2                        3.2

                      INCOME CHARACTERISTICS

                      Median Individual Income                          $2,166                  $1,697                   $3,099
                      Median Family Income                              $7,804                  $7,386                  $11,063
                      Percent of families below
                        poverty level                                     15.0                   17.2                       7.7

                      EDUCATIONAL CHARACTERISTICS

                      Percent of individuals 25 years or
                        older with High School completion                 27.9                   32.3                      52.3

                      HOUSING CHARACTERISTICS

                      Year-round housing units                            822                    8,962                1,234,469
                      Median gross value of rent                   $82/month                 $79/month             $127/month
                      Median value of owner-occupied
                        housing                                        $12,403                  $11,400                 $18@800
                      Percent of units moved into
                        in last 5 years                                   36.8                   38.1                      52.2

                      *Based on Percent of Labor Force Aged 16 Years or Older.

                                                                      D-54

                                                                TABLE D-34

                                             SNOW HILL 1970 INDUSTRIAL EMPLOYMENT
                                                      (Work Force 16 Years or Older)

                                                                                     WORCESTER
                  SECTORS                                   SNOW HILL(%)             COUNTYW               MARYLANDM

                  Construction                                     5.2                     9.9                    6.6
                  Manuf acturing                                   34.9                    22.3                  19.5
                  Public Utilities & Transportation                2.8                     4.4                    6.8
                  Wholesale & Retail Trade                         14.4                    18.1                  19.2
                  F.I.R.E. & Repair Services*                      7.8                     6.5                    8.5
                  Professional & Related Services                  7.6                     8.3                   12.3
                  Educational Services                             8.6                     4.3                    8.1
                  Public Administration                            9.7                     5.2                   13.5
                  Other                                            9.1                     21.0                   5.5
                              Total                              IOU                      100.0                  100.0

                  *F.I.R.E. is an acronym for Finance, Insurance, and Real Estate.

                  TRANSPORTATION

                  Railroads

                  The Snow Hill Shippers Association provides freight service for Worcester County and
                  Snow Hill as well. There are 14 rail users in the county of which the Snow Hill area
                  accounts for 8. There are two to three trains per week in the county though there is no
                  rail passenger service.

                  Highways

                  The highway system serving Worcester County includes U.S. Route 13, which extends
                  northward to Wilmington and the New Jersey Turnpike and southward through the
                  Virginia portion of the eastern shore and connects with the Chesapeake Bay Bridge-
                  Tunnel to Norfolk . U.S. Route 113 crosses the County and joins U.S. Route 13 at
                  Pocomoke City. Long-range plans of the State Highway Administration are that U.S.
                  Route 113 be dualized for its entire length through the County as a limited access
                  expressway. U.S. Route 50 which has its eastern terminus at Ocean City links the
                  eastern shore with the Baltimore-Washington area and points west via the Chesapeake
                  Bay Bridges.

                  The main thoroughfares in Snow Hill are Market Street (U.S. Route 113), Church Street
                  (Maryland Route 12 east), West Washington Street (Maryland Route 12 west) and Bay
                  Street (Maryland Route 365). The town is designed in a generally rectangular pattern
                  based upon a few major roads which radiate outward from the business center. The town
                  has a network of short streets with Federal Street and Market Street the only two streets
                  which cross the town.

                                                                  D-55

                    Truck Service

                    The American Motor Carrier Directory lists 10 motor freight common carriers of general
                    commodities authorized to serve Worcester County with truckload and/or less-than-
                    truckload service.

                    Bus Service

                    Trailways provides Worcester County with daily bus service through which connections
                    with any major point are available.

                    Water Transportation

                    The Port of Cambridge is the nearest deepwater port and is located about 50 miles
                    northwest of Snow Hill. The Port of Baltimore is about 125 miles from Snow Hill. Snow
                    Hill is at the head of navigation on the Pocomoke River. The channel has an authorized
                    depth of nine f eet and a width of 100 to 130 f eet. As seen in Table D- 35 below, in
                    calendar year 1981 the Pocomoke River was used primarily for barge transportation of
                    wood and petroleum products to private terminals at Snow Hill. There is also a basin for
                    small pleasure boats in Byrd Park, but little use is made of it.

                                                          TABLE D-35

                                     POCOMOKE RIVER 1981 WATERBORNE COMMERCE

                    HARBOR OR WATERWAY                     COMMODITY                                TONS

                    Pocomoke River, MD.        2416 Wood Chips, Staves, Moldings                  1239637
                                               2911 Gasoline                                       10,772
                                               2914 Distillate Fuel Oil                             89248
                                                      TOTAL                                       52,657

                    SOURCE: Waterborne Commerce Statistics of the United States      Calendar Year 1981,
                              Department of the Army, Corps of Engineers, February 1983.

                    Air Service

                    The Ocean City Municipal Airport is located about 20 miles northeast of Snow Hill and
                    has a 3,400-foot paved runway which is lighted from dusk to dawn. There is scheduled
                    commuter service to Baltimore-Washington International Airport (BWI) near Baltimore
                    and to Dulles International Airport west of Washington, D.C.

                    The Salisbury-Wicomico County Airport is located about 15 miles northwest of Snow
                    Hill. The U.S. Air Commuter has an average of about 28 flights daily to BWI near
                    Baltimore, Washington National Airport, and Philadelphia International Airport.

                                                              D-56

                COMMUNICATIONS

                Postal Facilities

                Worcester County is served by 10 post offices. There are four Class I offices located in
                Berlin, Ocean City, Pocomoke City, and Snow Hill. City delivery is provided for the
                residents in the Class I office locations.

                Telephone Services

                The Chesapeake and Potomac Telephone Company of Maryland provides telephone
                service in Worcester County. Direct distance dialing is available to all customers. The
                county seat, Snow Hill, is included in the local calling area for every exchange in
                Worcester County. Telecommunications services are also provided by Western Union,
                IT&T and Comsat.

                Radio and Television

                There are three radio stations in Worcester County. WBOC (AM & FM) has a studio in
                Ocean City as well as in Salisbury in Wicomico County. WDMV (AM) is located in
                Poc.omoke City and WETT (AM) is located in Ocean City. The nearest commercial
                television station is WBOC-TV in Salisbury which has a network hookup with -ABC, CBS,
                and NBC. In addition, there is a cable TV system available in all the incorporated towns
                in Worcester County.

                Newspapers

                There are three weekly newspapers published in Worcester County: the Eastern Shore
                Times in Ocean City with a circulation of about 4,000, the Maryland Coast Press in
                Ocean City with a circulation of about 4,650, and the Worcester County Messenger in
                Pocomoke City with a circulation of about 3,700. In addition to these newspapers, daily
                and Sunday papers from Baltimore, Philadelphia, Salisbury, Washington, D.C.t and
                Wilmington have a wide circulation.

                UTILITIES

                Electricity and Gas

                Delmarva Power and Light Company supplies electricity to most of the towns and
                developed areas in Worcester County. Choptank Electric Cooperative, Inc. provides
                electrical service to a large portion of rural Worcester County. The distribution system
                of Choptank Electric Cooperative is interconnected with Delmarvd Power and Light
                Company. Independent municipal propane gas systems are available in Berlin, Ocean
                City, Pocomoke City, and Snow Hill.

                Water and Sewerage

                There are municipal water systems in Berlin, Newark, Ocean City, Pocomoke City, and
                Snow Hill. The municipal system of Snow Hill consists of two main wells with each
                pumping 550 gpm, an auxiliary well which pumps 380 gpm, and an overhead storage tank
                which has a capacity of 220,000 gallons.

                                                         D-57

                    There are municipal sewerage systems in Berlin, Newark, Ocean City, Pocomoke City,
                    and Snow Hill. Snow Hill has a combined sewerage system with practically all properties
                    connected. The primary sewage treatment plant was constructed in 1965. It is located
                    on Cypress Lane and has a 330,000 gpd capacity. The capacity of the sewage treatment
                    plant is projected to be inadequate for growth through the year 1990.

                    COUNTY SERVICES

                    Law enforcement agencies in Worcester County include town police forces in Berlin,
                    Pocomoke City, Snow Hill, and Ocean City. The Snow Hill Police Department has a chief
                    and six officers. Fire protection is provided by several volunteer fire companies located
                    in the incorporated towns. Snow Hill's volunteer company has ample fire fighting
                    equipment and also provides ambulance service on a 24-hour basis. Snow Hill also
                    provides its residents with regular refuse collection.

                    EDUCATIONAL SERVICES

                    There are 13 schools located in Worcester County with a total enrollment of
                    approximately 5,000 students. Snow Hill has one elementary school, one middle school,
                    and one high school. TN@ total enrollment in 1974 of all three schools was approximately
                    1900 students. In the 1973-74 school year, Snow Hill accounted for 28.2 percent of the
                    total enrollment in the County. There are three non-public schools located in Worcester
                    County with an enrollment of approximately 360 students.

                    There are no institutions of higher learning located.in Worcester County. There are two
                    colleges nearby - Salisbury State College in Wicomico County and the University of
                    Maryland, Eastern Shore Campus in Somerset County. Salisbury State College is a fully
                    accredited four year liberal arts college located approximately 18 miles from Snow Hill.
                    The University of Maryland, Eastern Shore is also a fully accredited four year public
                    college in Princess Anne in Somerset County. There is also a county Vocational Center
                    which offers training in eight trades and occupations.

                    HEALTH SERVICES

                    There is no hospital in Worcester County. The majority of the County's citizens utilize
                    the Peninsula General Hospital in Salisbury, about 18 miles from Snow Hill. It is
                    community-owned with 370 beds and a staff of over 90 physicians and surgeons. Public
                    health services are provided through the Worcester County Health Department with
                    offices and clinics maintained in Snow Hill, Pocomoke City, and Berlin. There are two
                    nursing homes in Worcester County with a total bed capacity of 48.

                    CULTURAL INSTITUTIONS

                    Libraries and Churches

                    The Worcester County Library has its administrative office and the Snow Hill branch in a
                    new 12,000 square foot one-level brick building with a walled garden in Snow Hill.
                    Churches representing most major denominations are located in Worcester County. Snow
                    Hill itself has approximately six churches of various denominations.

                                                             D-58

                 Historic Sites

                 There are approximately 40 sites in the vicinity of Snow Hill which are considered by the
                 Maryland Historical Trust to be of significance to the history of the town and county and
                 which will be submitted for inclusion in the National Register of Historic Places. One of
                 these, the Nassawango Iron Furnace site, is currently listed on the National Register.
                 Snow Hill also possesses the Julia A. Purnell Museum which contains John Wilkes Booth's
                 weapon of assassination.

                 In terms of reported archeological sites in the vicinity (within a one mile radius of the
                 town) of Snow Hill, the Maryland Geological Survey has indicated that there are two
                 areas of medium sensitivity (i.e., may be eligible for inclusion in the National Register).
                 It should be noted that Snow Hill is one of the oldest towns in Maryland and possesses a
                 high potential for significant archeological resources.

                 LAND USE

                 Existing Land Use

                 As seen in Table D-36 the dominant land use in the town of Snow Hill is residential. The
                 majority of Snow Hill's housing supply was built prior to World War II and consists
                 generally of one or two story frame, single family homes. Most of the units which appear
                 to be in need of improvement are clustered near the commercial center northwest of
                 Market Street near Byrd Park.

                                                       .TABLE D-36

                                             SNOW HILL EXISTING LAND USE
                                                            (1974)

                                                                                   PERCENT WITHIN
                 LAND USE TYPE                         ACRES                     CORPORATE LIMITS

                 Residential                              250                            61.0
                 Commercial                                15                             3.9
                 Industrial & Utilities                    54                            13.9

                 The central business district consists of the downtown shopping district along Market,
                 Green, Washington, and adjacent streets. This is the dominant shopping center in central
                 Worcester County. Adjoining this core is a fringe of auto sales and service dealers,
                 public buildings, churches, small industries and some fine old homes. The principal area
                 of industrial development is along the main railroad track from its terminal north to
                 Purnell Branch outside of the town.

                 Future Land Use

                 The Comprehensive Plan for Snow Hill recommends that not less than four percent of the
                 future town be allocated to commercial use. Industries and transportation should have
                 approximately 15 percent of the total area, with recreation and other needs occupying
                 approximately 10 percent. This would mean approximately 30 acres for commercial use,
                 120 acres for industrial use, 86 acres for parks and playgrounds and 67 acres for public
                 and semi-public buildings.

                                                            D-59

                     It is the expressed intent of the Comprehensive Plan to keep the shopping area intact,
                     with the frontage of Green, Washington, Pearl and Bank Streets reserved for principal
                     stores, shops and business offices. The intention is to cluster the shopping facilities into
                     a close knit group f or maximum convenience. The plan provides more space f or primary
                     business buildings than currently is available by gradually relocating the non-shopping or
                     general business establishments elsewhere including the auto sales and service places,
                     used car lots and certain state and county offices. It is planned to relocate downtown
                     offices of governmental agencies in a new government building park along the
                     waterfront. It is also proposed that a traf fic-f ree pedestrian plaza or mall be
                     constructed along Pearl Street from Market to Green Street.

                     In June 1982, a Waterfront Redevelopment Study was conducted for the community of
                     Snow Hill. The study area extended from Washington Street to the West side of Byrd
                     Park, and from the river to Market Street with the exception of the downtown
                     commercial area. The purpose of this study was to examine opportunities for
                     development of the waterfront, in order to take advantage of some of the most valuable
                     real estate in the area, and also to support the downtown. The elements of the study
                     included interviews with key citizens, the distribution of an attitude survey, field surveys
                     of existing constraints and opportunities, a series of public meetings, the coordination of
                     goals and objectives statements, a brief market analysis, and the preparation of
                     alternative design concepts.

                     TILGHMAN ISLAND, MARYLAND

                     DEMOGRAPHIC CHARACTERISTICS

                     Tilghman Island is a small community located in the southwesternmost part of Talbot
                     County. It had a 1970 population of 1,180 with a median age of 34.6 years. Almost 50
                     percent of the community's population was 35 years of age or older. This.compares to
                     Talbot County's median age figure of 35.1 years with 50 percent of the County population
                     age 35 years or older.

                     Information on population trends on Tilghman Island is sketchy. Available data indicate
                     that the population grew from 804 to 1, 180 in the period 1960-1970. Some demographic
                     information is available for the Bay Hundred area which includes the area from Claiborne
                     to Blackwalnut Point. Historical trends for this area are compared with county, state
                     and national trends in Table D-37. As indicated, population in the Bay Hundred area has
                     shown a net decrease since 1950.

                     Based upon OBERS Series E population projections for the subregion, the estimated
                     population growth for Talbot County is shown in Table D-38. Because of the
                     unavailability of data for the Tilghman Island area, regression techniques were applied to
                     the population of the Bay Hundred area using data for the past 40 years. Based upon this
                     regression analysis, projections of populations for the area through the year 2020 are also
                     displayed in Table D-38.

                                                               D-60

                                                              TABLE D-37

                                     HISTORICAL POPULATION FOR THE U.S., MARYLAND,
                                              TALBOT COUNTY, AND BAY HUNDRED
                                                               (1940-1980)

                                            1940            1950            1960            1970              1980

                 UNITED STATES           132,165,000     151,326,000     179,323,000     203,212,000      226,504t825
                   % change                         -            14.5            18.5             13.3            11.5

                 MARYLAND                  11821,000       2,343,000       3,100,000        31922,400      4,216,941
                   % change                         -            28.6            32.3             26.5            7.5

                 TALBOT COUNTY                18,784           19,428          21,578          23,682          25,604
                   % change                         -             3.4            11.1              9.8            .8.1

                 BAY HUNDRED                   21033            2p201           1,957           19975            1,927
                   % change                         -             8.3           -11.1              0.9            -2.4

                                                              TABLE D-38

                                               POPULATION PROJECTIONS FOR THE
                                        TILGHMAN ISLAND AREA AND TALBOT COUNTY
                                                               (1980-2020)

                                                    1980*               1990            2000           2020

                 Talbot County                      25,604            29,200          32,100         41,100

                 Bay Hundred
                 (Regression)                        1,927             2,200            2,200        2,300

                 * 1980 populations presented f or Bay Hundred and Talbot County are the f inal counts as
                 determined by the Bureau of the Census.

                 OCCUPATIONAL DISTRIBUTION

                 The occupational distribution of Tilghman Island is highly concentrated among some very
                 low paying, low-skilled occupations, with 39.7 percent and 24.0 percent of the work force
                 aged 16 years or older employed in the Operatives and Labor sectors, respectively. The
                 island work force lacks professional and technical workers as well as clerical and kindred
                 workers as shown in Table D-39. Partially because of this imbalance, the labor force
                 would not be very attractive to many industries. These figures contrast with county
                 figures shown in Table D-39 which indicate a larger share of workers in the Sales and
                 Clerical and the Professional and Managerial categories. State figures in Table D-39 also
                 emphasize the Sales and Clerical and Professional and Managerial categories.

                                                                D-61

                                                               TABLE D-39

                                    DEMOGRAPHIC AND SOCIO-ECONOMIC CHARACTERISTICS
                                   FOR TILGHMAN ISLAND, TALBOT COUNTY, AND MARYLAND
                                                                    (1970)

                                                                     TILGHMAN            TALBOT
                      DEMOGRAPHIC CHARACTERISTICS                     ISLAND             COUNTY          MARYLAND

                      Population                                         1,180           23,682               3,922
                      Median Age                                         34.6              35.1               27.1
                      Percent 35 years or older                          49.6              50.0               40.0

                      OCCUPATIONAL DISTRIBUTION*

                      Prof. Managerial                                    9.8              19.5               27.6
                      Craftsmen, Foremen                                 10.2              16.0               13.7
                      Operatives (incl. transportation)                  39.7              15.2               13.3
                      Labor (incl. farm)                                 24.0              10.9                4.6
                      Farm Managers                                       0.8                2.6               0.7
                      Services                                           11.4              15.3               11.6
                      Sales and Clerical                                  4.1              20.3               28.1
                      Unemployed                                          2.7                2.5               3.2

                      INCOME CHARACTERISTICS

                      Median Individual Income                        $2,399             $2,422             $3,099
                      Median Family Income                            $6,214             $8,073            $11,063
                      Percent of families below poverty level             7.9              12.5                7.7

                      EDUCATIONAL CHARACTERISTICS

                      Percent of individuals 25 years or
                        older with High School completion                12.5              39.1               52.3

                      HOUSING CHARACTERISTICS

                      Year-round housing units                           525               8,907         11234,469
                      Median gross value of rent                   $65/month         $90/month        $127/month
                      Median value of owner-occupied                  $9,340            $16,200            $18,800
                        housing
                      Percent of units moved into in last
                        5 years                                          37.1              39.0               52.2

                      *Based on Percent of Labor Force Aged 16 Years or Older.

                                                                   D-62

                INCOME CHARACTERISTICS

                Individual median income for Tilghman Island residents in 1970 was $2,399 while median
                family income was $6,214. Based on family income, 7.9 percent of the families on
                Tilghman Island were'below the poverty level. The county-wide individual median
                income figure of $2,422 was comparable to the local community. The county median
                family income figure was $8,073 and the percentage of families below the poverty level
                was 12.5 percent. State figures on income are significantly higher than those for the
                community and the county while the percentage of families, statewide, below the
                poverty level is slightly lower at 7.7 percent. This information is also presented in Table
                D-39.

                EDUCATIONAL CHARACTERISTICS

                In 1970 only 12.5 percent of the population aged 25 years or older had completed high
                school. County figures fared somewhat better at 39.1 percent while the State scored
                even higher with 52.3 percent of this category having completed high school.

                HOUSING CHARACTERISTICS

                The number of year-round housing units in Tilghman in 1970 was 525 with a median gross
                value of monthly rent of $65 and a median value of owner-occupied housing of $9,340.
                Figures for Talbot County are significantly higher at $90 for the median gross value of
                monthly rent and $16,200 as the median value of owner-occupied housing. State figures
                exceeded both community and County figures. The State figure for median gross value
                of monthly rent in 1970 is shown in Table D-39 to be $127, and $18,800 is given as the
                median value of owner-occupied housing.

                INDUSTRIAL EMPLOYMENT

                As seen in Table D-40, the majority of those aged 16 years or older on Tilghman are
                employed in the Manufacturing sector. It should be stressed that this sector is
                exclusively water-oriented. This compares with county figures which show a
                concentration in the Wholesale and Retail Trade category. State figures indicate almost
                equal shares in the Manufacturing and Wholesale and Retail Trade sectors with the Public
                Administration sector also contributing a large share.

                TRANSPORTATION

                Railroads

                Under agreement with the Penn Central Railroad dated April 1, 1976, Maryland DOT
                took over the operation of certain branch lines on the eastern shore. Maryland DOT, in
                turn, entered into several short line operating agreements to have those lines operate as
                the Maryland-Delaware Railroad Company. Of these lines, the Clayton-Easton line
                serves Talbot County twice weekly hauling major commodities such as fertilizer and
                chemicals, feed, field crops, lumber, canned or frozen food and pulpwood. Moreover, the
                continued subsidization of the Clayton-Easton line is questionable if present traffic
                trends continue.

                                                         D-63

                                                              TABLE D-40

                                       TILGHM.AN ISLAND 1970 INDUSTRIAL EMPLOYMENT
                                                    (Work Force 16 Years or Older)

                                                                        TILGHMAN            TALBOT
                     SECTORS                                           ISLAND M          COUNTY (%) MARYLAND M

                     Construction                                           7.9              10.0                6.6
                     Manufacturing                                         25.7              16.7               19.5
                     Public Utilities & Transportation                      2.4                5.0               6.8
                     Wholesale and Retail Trade                             10.8             21.6               19.2
                     F.I.R.E. & Repair Services*                            0.0                4.8               8.5
                     Professional & Related Services                        3.9              16.3               12.3
                     Educational Services                                   4.1                6.2               8.1
                     Public Administration                                  5.9                3.6              13.5
                     Other                                                 39.3              15.8                5.5
                     Total                                               10 U.-O             1-0d.-O           100.0

                     *F.I.R.E. is an acronym for Finance, Insurance, and Real Estate.

                     Highways

                     The highway system serving Talbot County includes U.S. Route 50, a dual lane highway,
                     which is the major north-south artery through Talbot County. U.S. Route 50 links the
                     eastern shore with the Baltimore-Washington area and points west via the Chesapeake
                     Bay bridges. In a southerly direction, U.S. Route 50 joins U.S. Route 13 and links the
                     eastern shore with Norfolk and southern points via the Chesapeake Bay Bridge-Tunnel.
                     U.S. Route 50 also joins U.S. Route 301 which provides connections to the New Jersey
                     Turnpike. There are five Maryland routes which supplement U.S. Route 50 in Talbot
                     County.

                     Maryland Route 33 connects Tilghman Island with St. Michaels to the east and with
                     Route 50 at Easton. Because of the land area involved, streets in the town are'short,
                     dead-ending at the water's edge, with Route 33 the only access into or out of Tilghman.
                     Most streets in the town are in fair condition and are adequate to handle the small
                     quantity of local traffic.

                     Truck Service

                     The American Motor Carrier Directory lists I I motor freight common carriers of general
                     commodities authorized to serve Talbot County with truckload and/or less-than-
                     truckload service. Trucking service in St. Michaels is on an "as required" basis. This is
                     not likely to change in the foreseeable future.

                     Bus Service

                     Trailways provides Talbot County with daily bus service and maintains a terminal in
                     Easton through which connections with any major point are available.

                                                                  D-64

               Water Transportation

               The Port of Cambridge, which is about 15 miles south of Easton, is the nearest deepwater
               port to Talbot County. The Port of Baltimore is about 59 miles from Easton. As to be
               expected, the major commodity group involved in traffic at Knapps Narrows in calendar
               year 1981 was fish products as indicated in Table D-41.

               Air Service

               Easton Municipal Airport, about two miles north of Easton on U.S. Route 50, has two
               paved, lighted 4,000-foot runways. Scheduled service to Baltimore and Washington, D.C.
               is provided by private airline. Facilities and services include fuel, storage and outside
               tiedown, instruction, rental planes, unicom radio and aircraft maintenance.
               Accommodations for corporate aircraft are available. There is also a small private
               airfield located approximately five miles west of St. Michaels.

                                                   TABLE D-41

                                             KNAPPS NARROWS 1981
                                           WATERBORNE COMMERCE

               HARBOR OR WATERWAY                    . COMMODITY                        TONS

               Knapps Narrows, MD.*        0911 Fresh Fish, except shellfish                9

                                           0912 Shellf ish, except prepared            16t227

                                           0931 Marine Shells, unmanuf actured          1P120
                                                TOTAL                                  17,356

               SOURCE: Waterborne Commerce Statistics of the United States Calendar Year 1981,
                         Department of the Army, Corps of Engineers, February 1983.

               COMMUNICATIONS

               Postal Facilities

               Talbot County is served by 16 post offices. The largest of these is the first class office
               located at Easton. There are two second class offices located at Oxford and St.
               Michaels. Thirteen third and fourth class offices are located throughout the County.
               Tilghman Island has one third class post office.

               Telephone Services

               The Chesapeake and Potomac Telephone Company of Maryland provides telephone
               service f or Talbot County. Nationwide direct distance dialing is available to all
               customers. Additional suppliers of telecommunications services include Western Union,
               IT&T, and Comsat.

                                                       D-65

                    Radio and Television

                    WEMD (AM and FM) in Easton is the only radio station in Talbot County. WCEM (AM and
                    FM) in Cambridge is in neighboring Dorchester County. Radio reception is available on
                    all major networks from Baltimore and Washington, D.C. Television reception is
                    available for all major networks from Baltimore, Salisbury, and Washington, D.C. and
                    cable antenna television is available from Cambridge.

                    Newspapers

                    There are two daily (Monday through Friday) newspapers published in Easton: The Star
                    Democrat with a circulation of about 10,000 and the Talbot Banner with a circulation of
                    about 11,000. In addition, daily and Sunday papers from Baltimore, Salisbury, and
                    Washington, D.C. and the daily paper from Wilmington, Delaware, have a wide
                    circulation in the County.

                    UTILITIES

                    Electricity and Gas

                    There are four sources of power available in Talbot County to include the Easton
                    Utilities Commission, Delmarva Power and Light Company, the Choptank Electric
                    Cooperative, Inc. and the St. Michaels Utilities Commission. The St. Michaels Utilities
                    Commission serves parts of Talbot County and the incorporated town of St. Michaels.
                    Electric power is purchased wholesale from Delmarva Power and Light Company of
                    Maryland.

                    Natural gas is supplied in the Town of Easton by the Gas Department of the Easton
                    Utilities Commission. The supply of gas is adequate to serve existing loads only. No
                    extensions are being made to the gas system and no additional commercial or industrial
                    customers are being added to the system. Other areas of the county utilize propane gas
                    which is available from local distributors. All grades of fuel oil are available in Talbot
                    County from local distributors.

                    Water and Sewerage

                    The Aquia Formation occurs in western Talbot County and is the primary source of water
                    in an area southwest of Easton (including the Bailey's Neck and Oxford Neck areas) and
                    parts of the St. Michaels - Tilghman Neck area. Aquifer characteristics of the Aquia
                    Formation are as follows: the transmissibility is relatively low, ranging from 2,000 to
                    about 5,000 gpd per foot and the permeability is also low, ranging from 45 to 79 gpd per
                    square f oot. The Aquia lies 550 to 620 f eet below sea level. The waterbearing sands are
                    about 40 to 65 feet thick. The original static water level was at least a few feet above
                    sea level, and thus about 550 f eet of drawdown was available to the first wells completed
                    in the formation. The Aquia is capable of supplying moderately large quantities of water
                    in the Easton area in spite of its low transmissibility. Most sewerage is handled by
                    private septic systems on the island.

                                                             D-66

                 COUNTY SERVICES

                 Law enforcement agencies in the county include the Sheriff's office, the State Police,
                 and town police departments in Easton, Oxford, St. Michaels, and Trappe. There are
                 seven volunteer fire companies that provide protection for Talbot County. Each
                 company has a Class A rated pumper. All companies are connected by a central alarm
                 system. County-wide ambulance service is available through volunteer fire companies on
                 a 24-hour basis. Municipal refuse collection is provided within the corporate limits of
                 Easton. The incorporated towns of Oxford, St. Michaels, and Trappe provide refuse
                 collection through commercial contractors. There is a landfill about three miles east of
                 Easton.

                 EDUCATIONAL SERVICES

                 There are 10 schools in the area with a total enrollment in 1981 of approximately 3,800
                 students. The Talbot County Vocational-Technical Center is located in Easton. This
                 facility provides training in areas ranging from mechanics to construction to food
                 services. There are also six non-public schools within the County enrolling approximately
                 900 students. The Talbot County Board of Education also offers a program in adult
                 continuing education, enrolling approximately 550 adults in over 20 courses throughout
                 the County.

                 There are no institutions of higher learning located within Talbot County. There are
                 however three colleges nearby: Chesapeake College in Queen Anne's County, Washington
                 College in Kent County, and Salisbury State College in Wicomico, County.

                 HEALTH SERVICES

                 Memorial Hospital at Easton is a completely modern, fully accredited, 200 bed facility.
                 It has a staff of 97 active or consulting physicians and surgeons. The hospital also
                 conducts a 32 month accredited diploma School of Nursing. The Talbot County,Health
                 Department is also located in Easton. It is an integral unit of the Maryland State
                 Department of Health and Mental Hygiene. The Talbot County Health Department has a
                 Home Health Program available to anyone needing intermittent nursing services or
                 physical therapy. There are two nursing homes in the county. One is located in Easton
                 and one near St. Michaels. There is also an Extended Care Facility at the Memorial
                 Hospital in Easton.

                 CULTURAL INSTITUTIONS

                 Libraries and Churches

                 The Talbot County Free Library is located in the south wing of the Talbot County
                 Courthouse in Easton. The Library houses a collection of some 59,000 books and 1,245
                 phonograph records, and subscribes to 110 magazines and 8 newspapers. In addition there
                 is a branch library in Oxford with a collection of approximately 4,000 volumes and a
                 special Outreach Reading Room in the Neighborhood Service Center in Easton. A new
                 facility was constructed in 1976. Churches representing most major denominations are
                 located in the County. Tilghman Island itself has several churches of various
                 denominations.

                                                           D-67

                    Historic Sites

                    There are two sites in the Tilghman Island vicinity which are considered by the Maryland
                    Historical Trust to be of significance to the history of the town and county and which
                    will be submitted for inclusion in the National Register of Historic Places. One skipjack,
                    the Reliance, is currently located off Knapps Narrows and is included in the National
                    Register.

                    There are no recorded archeological sites in the vicinity of Tilghman Island (within a one
                    mile radius), but is should be noted that a systematic survey of the area has not been
                    conducted. According to the Maryland Geological Survey, there is a high potential for
                    significant archeological resources in the Tilghman area.

                    LAND USE

                    The general pattern of existing zoning in Talbot County calls for agricultural use of the
                    eastern half of the county and mostly waterfront residential usage west of Route 50.
                    Approximately 70 percent of the total County land, or approximately 125,000 acres is
                    farmland. The single largest area of development has occurred in and around the town of
                    Easton. Commercial and industrial land is generally located in and around the
                    incorporated towns though there is some scattered industrial use at places such as
                    Cordova.

                    The majority of land on Tilghman Island is used for residential purposes. The condition of
                    most residences on the island is good, with one rather low value area located on Mission
                    Road west of Route 22 and another similar area generally along Route 33. As one
                    approaches the water, the condition of the housing in the area seems to improve.

                    Commercial establishments in Tilghman Island are located in the area immediately
                    adjacent to Knapps Narrows with another area of moderately concentrated commercial
                    activity located along Route 33 heading south from Knapps Narrows. These areas include
                    a few service stations, an auto repair garage, a few grocery stores, three restaurants,
                    two novelty and gift shops, one bank, and one hardware store. The condition of most of
                    these establishments is fair to good. The restaurants are all very well maintained and
                    seem more oriented toward visitors to the island than to the local population.

                                            VIRGINIA FLOOD-PRONE COMMUNITIES

                    CAPE CHARLES, VIRGINIA

                    DEMOGRAPHIC CHARACTERISTICS

                    Betv@een 1970 and 1980, Northampton County gained 183 persons while the town lost 266
                    (a 10.5 percent decline over 1970). Several agencies have projected changes in future
                    population. Two of these are shown in Table D-42 below with their sources noted. No
                    agency has made projections for Cape Charles. However a contribution of existing
                    circumstances would suggest little or no growth in population.

                                                               D-68

                                                         TABLE D-42

                                NORTHAMPTON COUNTY HISTORICAL AND PROJECTED
                                                 POPULATION (1970 - 2030)

                 SOURCE                     1970(a)    1980(a)     1990     2000      2010     2020      2030

                 Department of Planning
                 and Budget
                 Jan 1983(b)                 14,442    14,625    15,000    15,300   15,600    15,900   16,200

                 Regional Economic
                 Analysis Division -
                 Bureau of Economic
                 Analysis(c)                 14,442    14,625    15,271   16,113    17,018    18,062   18,68:1

                 (a)   U.S. Department of Commerce, Bureau of Census, 1970 & 1980.Census of
                       Population, Vol. 1. August 1982.
                 (b)   Population Projections - Virginia Counties and Cities, 1980 - 2000.
                 (c)   County-Level Projections of Economic Activity and Population Virginia, 1985 -
                       2040, U.S. Department of Commerce, December 1982.

                 INCOME CHARACTERISTICS

                 Seasonal unemployment, together with low wages and salaries, contribute to a high level
                 of poverty. Thus 1970 median family income was less than one-half the statels, and
                 approximately one-third of Northampton County's families were below poverty level.
                 Many of these families were either elderly or black.

                 The Tayloe-Murphy Institute of Virginia counted 3,999 families in 1978, with median
                 income of $10,503 (57 percent of the state level). Among 136 counties, this placed
                 Northampton 135th, even though median income in constant dollars increased 23.5
                 percent between 1969 and 1978. Based on Department of Commerce OBERS statistics,
                 real dollar per capita income should reach 68.4 percent of state levels by 2030. In 1969
                 it was 59.5 percent of the state level.

                 HOUSING AND MUNICIPAL SERVICES

                 The 1980 Census counted 701 housing units in Cape Charles with a median value of
                 $22,900. Of these, 312 were owner occupied.

                 The nearest elementary school to Cape Charles is in Capeville. The town does have a
                 police department, emergency ambulance service, voluntary fire company, and library.
                 While the county has a public health department and hospital, there is a shortage of
                 private and public health facilities and services.

                                                             D-69

                      HAMPTON ROADS, VIRGINIA

                      DEMOGRAPHIC CHARACTERISTICS

                      Since 1970, the net increase in the study area population has been due to growth in
                      Chesapeake and Virginia Beach. Table D-43 shows historical population and the Virginia
                      Department of Planning and Budget's projections for the five cities. Table D-44 shows
                      study area population projections from another source as well as projections for the two
                      SMSA's in which the area is located.

                                                               Table D-43

                                            VIRGINIA DEPARTMENT OF PLANNING AND
                                  BUDGET POPULATION PROJECTIONS FOR HAMPTON ROADS

                      CITY               1970        1980        1990        2000         2010       2020        2030

                      Hampton        120,777     122,617     124,900      127,000     128,800    130,400      132,000
                      Norfolk        3079951     266,979     245,500      240,000     240,000    240,000      240,000
                      Portsmouth     110,963     104,577      99,200       96,800       96,900     96,800      96,800
                      Chesapeake     89,580      114,486     1429000      162,500     179,000    193,300      207,600
                      Va. Beach      172,106     262,199     3529300      417,500     476,000    5301000      5849000
                      Total          801,379     870,858     9639900    1,043,800   1,120,600  1,190,500    1,260,400

                                                                  TABLE D-44

                                     HAMPTON ROADS COMPARATIVE POPULATION PROJECTIONS

                      SOURCE               1970       1980        1990         .2000         2010          2020         2030

                      Department of
                      Plannin &
                      Budget 1a)        8019379    870,858    963,900     1,043,800     1,120,600     1,190,500   1,260,400

                      OBERS County
                      Level(b)          804379     870t858    966,472     lt046,359     1,122,060     1,199,046   1,247,209

                      Two SMSA's
                      (VA portion) W
                      OBERS-Low
                      Change-in-Share       -    111609311 19272@311      113749701            -           -      lp639$795

                         (a)     Population Projections-rirginia Counties and Cities, 1980-2000, January 1983.
                          (b)    County Level Projections of Economic Activity and Population Virginia, 1985-
                                 2040, Regional Economic Analysis Division, Bureau of Economic Analysis,
                                 December 1982.
                         W       1980 OBERS BEA Regional Projections, Economic Activity in the United
                                 States, Vol. 8, Region 5, Bureau of Economic Analysis, July 1981.

                                                                  D-70

                 All sources in Table D-44 project the population to grow between 41 and 44.5 percent
                 f rom 1980 to 2030. The greatest increases in population are anticipated f or Chesapeake
                 and Virginia Beach. Norfolk and Portsmouth are projected to show modest growth by
                 OBERS and a decline by the Department of Planning and Budget.

                 The population within the study area has been getting older over the past decade. The
                 percentage of population under 18 years of age decreased from 34.8 percent to 28.5
                 percent between 1970 and 1980; the 18 to 64 year-olds have increased from 59.3 to 64.1
                 percent. Those 65 and older increased from 5.9 to 7.4 percent.

                 INCOME CHARACTERISTICS

                 Per capita income for the cities in the study area ranged between $7,251 and $8,238 and
                 ranked in the lower three-fif ths of Virginia's incorporated cities. The 1979 income is
                 shown in Table D-45. OBERS projects per capita income in the area's two SMSA's to
                 increase two percent per year.

                                                       TABLE D-45

                                        HAMPTON ROADS PER CAPITA INCOME

                                CITY                 PER CAPITA 1979          CITY RANK,

                                Chesapeake                $7,251                    37
                                Hampton                   7,875                     29
                                Norfolk                   7,463                     34
                                Portsmouth                7,466                     33
                                Va. Beach                 8,238                     25

                 SOURCE: Tayloe-Murphy Institute.

                 HOUSING CHARACTERISTICS

                 There were 307,245 housing units in the study area in 1980, 306,359 of which were year-
                 round units. Seventy-seven percent of all year-round units were single family. Owners
                 occupied 166,306 total units. Norfolk had the largest percentage of multifamily
                 dwellings (33 percent) and Chesapeake the smallest (14.5 percent). The median value of
                 houses as estimated by their owners ranged from $36,600 in Portsmouth to $58,500 in
                 Virginia Beach.

                 EMPLOYMENT CHARACTERISTICS

                 OBERS total employment for the five-city area is projected to increase from 418,774 to
                 597,519 or 42.7 percent between 1978 and 2030. Table D-46 shows these projections by
                 city. OBERS projections for employment in the two SMSA's are shown in Table D-47.
                 The largest increases over the 1978-2030 period were projected for Services at 88
                 percent, Wholesale and Retail Trade at 75 percent, and Manufacturing at 45 percent.
                 The importance of Government, Trade, and Services to the economy is demonstrated in
                 Table D-48.

                                                          D-71

                                                              TABLE D-46

                                 PROJECTED EMPLOYMENT FOR THE HAMPTON ROADS AREA

                     CITY                           1978       1990       2000      2010        2020        2030

                     Hampton                     35,013      66,103    729236      76,886     78,336      79,853
                     Norfolk                     206,306    227,054    242,774   256,279    260,793      265,657
                     Portsmouth                  50,470      58,775    639549      67,344     68,582      69Y871
                     Chesapeake                  279835      36,899    409817      43,547     44,228      44,983
                     Va. Beach                   79 150    109 441    122 672    1319690    134 388      1372155
                     Total                                                       5759746    3786t'327    597,519

                     SOURCE: County-Level Projections of Economic Activity and Population:           Virginia,
                     1985-2040.

                                                              TABLE D-47

                                               OBERS EMPLOYMENT PROJECTIONS

                     SMSA                            1978          1985         1990        2000        2030

                     Norfolk-Virginia
                     Beach-Portsmouth            334,651         428,469    453,510      492,917     543,080

                     Newport News-
                     Hampton                     172,224         195,123    207,642      227,011     251,215

                     TOTAL                       556,875         623t592    661,152      719,818     794,295

                     SOURCE: 1980 OBERS BEA Regional Projections.                -

                                                              TABLE D-48

                                                       OBERS COUNTY LEVEL                       I
                                        EMPLOYMENT BY SECTOR FOR FIVE-CITY AREA
                                                                  (1978)

                                             Employment                                  Percent
                                      Total Government (incl. mi   Tary)                   40.6
                                      Wholesale and Retail Trade                            18.4
                                      Services                                              18.0
                                      Total Manufacturing                                   6.3
                                      Contract Construction                                 5.9
                                      Percent of Total Employment                          -9-9.2
                                      1 Includes Hampton, Norfolk, Portsmouth,
                                          Chesapeake, and Virginia Beach.
                                      2 Does not include wholesale trade for
                                          Chesapeake and Portsmouth.

                                                                 D-72

                There are several large government installations in the study area. In Portsmouth, the
                Norfolk Naval Shipyard was the city's largest employer, accounting for 41 percent of the
                civilian labor force in 1971. Hampton has a large concentration of military and civilian
                Federal personnel at Langley Air Force Base and the National Aeronautics and Space
                Agency. The Fifth Naval District is headquartered in Norfolk, where the Naval Supply
                Center, Public Works Center, and Naval Air Station are among the large operations.

                POQUOSON, VIRGINIA

                DEMOGRAPHIC CHARACTERISTICS

                Poquoson has beenone of the fastest growing cities in Virginia over the past 20 years.
                While the surrounding population of York County grew at an estimated 6.8 percent
                between 1970 and 1980, and that of Newport News - Hampton SMSA at 9.4 percent,
                Poquoson's population increased 60.4 percent. Projections for these areas are shown in
                Table D-49.

                The proportion of Poquoson's population between 18 and 64 years old increased from 55.8
                percent in 1970 to 60.5 percent in 1980. The increase in this working age group is
                evidence of the immigration which has occurred because Poquoson acts as a residential
                suburb for the nearby metropolitan area.

                Normally such population growth as Poquoson has had can be expected to be accompanied
                by industrial and commercial development. That has not proven to De the case in
                Poquoson. Thus, the city is having to provide the services demanded by a rapidly
                increasing population of all income groups and is forced to rely not on a diversified local
                tax base but almost completely on residential real property taxation and
                intergovernment revenues.

                OCCUPATIONAL DISTRIBUTION

                Residents generally commute to jobs in either Newport News, Hampton, or York
                County. The total number of residents employed has increased steadily since 1960.
                Individuals employed increased over 33 percent between 1976 and 1978 from 2,532 to
                3,385. Consequently, unemployment rates have remained low. Within the city, the
                number of employed grew from 468 in 1976 to 572 in 1978. The largest single employer
                during these years was local government, accounting for nearly one-half of Poquoson's
                jobs.

                Currently, there are no large industrial or commercial establishments in Poquoson. Of
                those industries having five or more employees, the majority were engaged in seafood
                packing or processing. Other commercial employment sectors in 1980 included Retail
                and Wholesale Trade (160 employees), Services (69), and Contract Construction (58).
                Despite the lack of available jobs within the city, the labor force is skilled and well
                educated. Median school years increased from 9.4 in 1960 to 11.1 in 1970. Many of
                Poquoson's professional workers are employed in public and private research facilities at
                or near the Langley Air Force Base, including NASA, LTV Aerospace Corporation, Wyle
                Laboratories, and Hayes International.

                                                         D-73

                                                                    TABLE D-49

                                                 POPULATION PROJECTIONS FOR POQUOSON,
                                         YORK COUNTY, AND THE NEWPORT NEWS-HAMPTON SiMSA
                                                       Historicall
                     PLACE/SOURCE                  1970       1-         1990      2000       2010       2020      2030
                     Poquoson-DSPB2                5,441     8P726     11,900    14,500     16,400     17,900    l9t400
                     Poquoson-OBERS3               5,441     8,726      9,774    10,595     11,372     12,131    12,616
                     York County-DSPB   2        27,762     35p463     42,500    47,300     51,000     54t100    57p2OO
                     Newport Neys-Hampton
                     SMSA-DSPB                  333,463    364,449   393,700    4159500    432,600    446p9OO   4619200
                     Newport Nen-Hampton
                     SMSA-OBERS                 333,140    364v449   408,982    444pl85          -         -    531,228

                     lActual values are final census counts.
                     2Virginia Population Projections 2000, Department of Planning and Budget, Richmond, Virginia,
                     3January, 1983. Adjusted to account for Poquoson's independent city status on June 1, 1975.
                     County-Level Projections of Economic Activity and Population, Virginia, 1985-2040, Regional
                     41 Economic Analysis, U.S. Department of Commerce, December, 1982.
                       980 OBERS BEA Regional Projections, Volume 8, Region 5, Southeast, U.S. Department of
                      Commerce, Bureau of Economic Analysis, July, 1981.

                     INCOME CHARACTERISTICS

                     Family income increased at all levels between 1960 and 1970. According to the Tayloe-
                     Murphy Institute, there were 2,440 families in Poquoson in 1978 with a median income of
                     $19,531, or 106 percent of the State median figure. The city ranked 17th out of 136
                     counties and cities with respect to this measure of income. The change in constant
                     dollars over the 1969 median was 16.2 percent. Per capita income in 1977, however, was
                     only 77 percent of the State level, or $5,250.

                     HOUSING CHARACTERISTICS

                     According to a city housing census, there were 2,885 housing units as of 1980.
                     Approximately 22 percent of these units have either structural deficiencies, lack of
                     adequate plumbing and sanitary facilities, overcrowding, or combinations of these
                     problems. An estimated 1,099 residential building permits were issued between 1970 and
                     the third quarter of 1979. Almost all of these permits were for private, single-family
                     structures.

                                                                D-74

                 The current housing supply fails to meet the city's needs despite the number of units
                 offered and the stability of the local housing market. Approximately 48.1 percent of the
                 city's population is within the category of low to moderate income. over 60 percent of
                 these persons reside in the Trinity area, within the eastern precinct. This area has most
                 of the city's oldest residences. The average value of street-front properties in that area
                 is less than one-half the average value of all improved and unimproved properties in the
                 city as a whole.

                 TANGIER ISLAND, VIRGINIA

                 While there is current information published for Accomack County, little of it is for
                 Tangier alone or can be useful in understanding lif e@ on the island. The population is
                 predominantly methodist and the two churches play an important part in community
                 lif e. There. is a Health Center with a registered nurse and an accredited school f or
                 kindergarten through high school even though there may be only a dozen students
                 graduating from high school in any year. A community center with basketball courts and
                 eating facilities was recently built on a pile foundation at a northwest site on the
                 island. Local people characterize their life as a tranquil one. They can walk or bike
                 easily to any part of town and those who want cars keep them parked in places like
                 Crisfield for use on the mainland.

                 WEST POINT, VIRGINIA

                 DEMOGRAPHIC CHARACTERISTICS

                 West Point's population of 2,726 in 1980 was slightly over 29 percent of King William
                 County's population of 9,334. There are two sources of projected population for King
                 William County shown in Table F-50, along with historical figures. If West Point
                 maintained the average growth it has exhibited over the last decade (0.47 percent per
                 year between 1970-1980), it would reach 3,450 persons by 2030.

                                                        TABLE D-50

                                        KING WILLIAM COUNTY HISTORICAL AND
                                                 PROJECTED POPULATION
                                                         (1970-2030)
                 Source                        19701         19801         2000          .2020        2030

                 Department of State           7,497         9,334       12,600        14,500        15,400
                 Planning and Pudget,
                 January 1983

                 Bureau of Economic            7,497         9,334       10,269        11,583        11,970
                 Analysis,       3
                 December 1982
                 11980 Census of Population, Volume 1, U.S. Department of Commerce, Bureau of Census,
                   August 1982.
                 2Population Projections - Virginia Counties and Cities, 1980-2000.
                 3County-Level Projections of Economic Activity and Projections, Virginia, 1985-2040,
                   U.S. Department of Commerce, December 1982.

                                                            D-75

                     OCCUPATIONAL DISTRIBUTION

                     The number of West Point residents employed in 1970 was 39 percent of the total number of
                     county residents employed, irrespective of place of work. Since 1970 the number of
                     employed persons living within the county increased.over 22 percent, reaching 3,467 in
                     1978. Unemployment that year was 5.8 percent. Manufacturing, with 1,314 employees,
                     accounted for 51 percent of all the county's nonagricultural wage and salary jobs in 1978.
                     About 94 percent of these manufacturing employees were in the paper and lumber
                     industries, which are located chiefly in West Point. By 2020 approximately 4,500 persons
                     are expected to be employed in the county. Employment and earnings in paper and allied
                     products will continue to be of major importance to the county's economy.

                     INCOME CHARACTERISTICS

                     In 1970, 10.6 percent of all persons and 7.5 percent of all families below the poverty level
                     resided in the town. Per capita income for King William County was between 80 and 88
                     percent of the national figure throughout the 1970's and is expected to maintain that
                     relative position through 2020. In 1978, the county ranked 45th out of 136 counties and
                     cities in Virginia with respect to median family income, that being $17,106.

                     HOUSING CHARACTERISTICS

                     About 31 percent of the county's year-round housing units are in West Point. In 1980, the
                     town had 980 occupied units, 736 of them owner occupied. Their median value was
                     estimated at $41,300 and only 3.1 percent lacked plumbing for their exclusive use.

                     TRANSPORTATION

                     Railroads

                     A division of the Norfolk Southern Railway runs from West Point to Danville via Richmond.
                     Daily scheduled freight service is available on this line with north-south or east-west
                     connections made at either Richmond or Danville.

                     Highways

                     State Highway 30 runs the entire length of King William County from northwest to
                     southeast, providing access from West Point to Interstate 95 via U.S. 301 and State Route
                     54. In addition, Route 33 provides a direct interchange with Interstate 64, which passes
                     approximately 12 miles south of the town.

                     Bus Service

                     The southern portion of King William County is served by Cavalier Transportation Company
                     operating over State Route 33 and providing trips daily each way between the Trailways
                     Terminal in Rirhmond and West Point, Matthews, Deltaville, and other towns of the "Middle
                     Peninsula." Connections for distant travel may be made at Richmond.

                     Water Transportation

                     Chartered oceangoing vessels drawing 18 feet of water navigate safety the length of the
                     York River to just above West Point. Barges and other shallow-draft vessels use the
                     Pamunkey and Mattaponi Rivers. All of the rivers are also used for fishing and pleasure
                     boating.

                                                                D-76

                                                    REFERENCES

                    Bac@ground Studies, Talbot County, Mary!And                             ogram,
                                                                ', Comprehensive Planning Pr
                Urban Pathfinders, Inc., January 1973.

                    Background Study for Worcester CountX, Urban Pathfinders, Inc., Baltimore-
                Washington International Airport, August 1974.

                    Brief Industrial Facts, Dorchester County, Maryland, Maryland Department of
                Economic and Community Development, Division of Business and Industrial Development,
                January 1983.

                    Brief Industrial Facts, Kent County, Maryland Maryland Department of Economic
                and Community Development, Division of Business and Industrial Development,
                Annapolis, Maryland, January 1983.

                    Brief Industrial Facts, Somerset County, Maryland, Maryland Department of
                Economic and Community Development, Division of Business and Industrial Development,
                Annapolis, Maryland, January 1983.

                    Brief Industrial Facts, Talbot County, Maryland, Maryland Department of Economic
                and Community Development, Division of Business and Industrial Development,
                Annapolis, Maryland, January 1983.

                    Brief Indus-trial Facts, Worcester County, Maryland, Maryland Department of
                Economic and Community Development, Division of business and Industrial Development,
                Annapolis, Maryland, January 1983.

                    Community Economic Inventory, Dorchester County, Maryland, Maryland
                Department of Economic and Community Development, Division of Business and
                Industrial Development, Annapolis, Maryland, April 1975.

                    Community Economic Inventory, Kent County, Maryland, Maryland Department of
                Economic and Community Development, Division of Business and Industrial Development,
                Annapolis, Maryland, June 1977.

                 . Community Economic Inventory, Somerset County, Maryland, Maryland Department
                of Economic and Community Development, Division of Business and Industrial
                Development, Annapolis, Maryland, April 1975.

                    Community Economic Inventory, Worcester County, Maryland, Maryland Department
                of Economic and Community Development, Division of Business and Industrial
                Development, Annapolis, Maryland, June 1976.

                    Community Economic Inventory, Talbot County, Maryland, Maryland Department of
                Economic and Community Development, Division ot Business and Industrial Development,
                Annapolis, Maryland, May 1976.

                                                         D-77

                          The Comprehensive Development Plan, Pocomoke City, Maryland Pocomoke City
                     Planning Commission and Maryland Department of State Planning, Pocomoke City,
                     Maryland, January 1981.

                          The Comprehensive Development Plan, St. Michaels, Maryland St. Michaels
                     Planning and Zoning Commission, 1971.

                          The Comprehensive Development Plan, Snow Hill, Maryland, January 1976.

                          The Comprehensive Plan, The City of Cambridge, Jacob F. Frego and Robert L.
                     Dodd, July 1978.

                          Comprehensive Plan for Crisfield, Maryland, Armiger, Chaffin and Associates, Inc.,
                     Columbia, Maryland, June 1976.

                          The Comprehensive Plan, Dorchester County, Maryland Comprehensive Planning
                     Program, Urban Pathfinders, Inc., Baltimore, Maryland, November 1974.

                          The Comprehensive Plan for Kent County, Maryland Volumes I and 11, Prepared 1969
                     by Harland, Bartholomew & Associates, updated 1974 by Peter L. Johnston.

                          The Comprehensive Plan for Rock Hall, Maryland, Harland, Bartholomew &
                     Associates, Washington, DC, November 1968 (updated 1974).

                          Comprehensive Plan for Somerset County, Maryland, Stottler, Stagg and Associates,
                     May 1975.

                          The Comprehensive Plan, Talbot County, Maryland, Comprehensive Planning
                     Program, Urban Pathfinders, Inc., October 1973.

                          General Housing Characteristics, Maryland, Census of Housing US Bureau of the
                     Census, August 1982.

                          General Housi_pZ Characteristics, Virginia, Census of Housing US Bureau of the
                     Census, August 1982.

                          Historic Snow Hill Snow Hill Bicentennial Committee, Snow Hill, Maryjand, 1976.

                          Preliminary Report, Community Facilities and Financial Studies, Comprehensive
                     Plan, Rock Hall, Maryland February 1967, Harland, Bartholomew & Associates.

                          Volume I and Measurements Reports, Series GE No. 1, US Bureau of the Census,
                     1970.

                          Waterborne Commerce of the United States, Calendar Year 1980 Part 1,
                     Department of the Army, Corps of Engineers, February 1982.

                          Waterborne Commerce of the United States, Calendar Year 1981 Part 1,
                     Department of the Army, Corps of Engineers, February 1983.

                          The Worcester County Comprehensive Plan, Urban Pathfinders, Inc., and William
                     Small Associates, Severna Park, Maryland, February 1976.

                                                                D-78

                                            CHESAPEAKE BAY

                                         TIDAL FLOODING STUDY

                                               APPENDIX E

                                ENGINEERING DESIGN AND COST ESTIMATES

                                          Department of the Army
                                    Baltimore District, Corps of Engineers
                                            Baltimore, Maryland
                                              September 1984

                                           CHESAPEAKE BAY TIDAL FLOODING STUDY

                                 APPENDIX E - ENGINEERING DESIGN AND COST ESTIMATES

                                                         TABLE OF CONTENTS

                   Item                                                                                           Page

                   Introduction                                                                                    E-1
                   Stage-Freuency Information                                                                     E- I
                   Engineering Design                                                                              E-3
                        Structural Measures                                                                        E-3
                             Floodwalls                                                                            E-3
                             Flood Levees                                                                          E-3
                             Steel Sheet Pile Bulkhead                                                            E-20
                        Nonstrurtural Measures                                                                    E-20
                             Raising of Structure                                                                 E-20
                             Utility Room Addition                                                                E-21
                             Relocation of Structure                                                              E-21
                             Acuisition and Demolition                                                           E-21
                             Floodproofing                                                                        E-24
                                   Flood Shields                                                                  E-24
                                   Floodwalls                                                                     E-24
                   Flood Control Plan Cost Estimates                                                              E-27
                        Maryland Communities                                                                      E-29
                             Cambridge                                                                            E-30
                             Crisfield                                                                            E-40
                             Pocomoke City                                                                        E-48
                             Rock Hall                                                                            E-55
                             Snow Hill                                                                            E-67
                             St. Michaels                                                                         E-76
                             Tilghman Island                                                                      E-82
                        Virginia Communities                                                                      E-91
                             Cape Charles                                                                         E-91
                                   Structural                                                                     E-91
                                   Nonstructural                                                                  E-91
                             Hampton Roads                                                                        E-95
                                   Structural                                                                     E-95
                                   Nonstructural                                                                  E-95
                             Pouoson                                                                             E-98
                                   Structural                                                                     E-98
                                   Nonstructural                                                                 E-98
                             Tangier Island                                                                      E-102
                                   Structural                                                                    E-102
                                   Nonstructural                                                                 E-104
                             West Point                                                                          E-107
                                   Structural                                                                    E-107
                                   Nonstructural                                                                 E-107

                                                               LIST OF FIGURES

                       Number                                           Title                                      Page

                       E-1                       Cambridge Stage-Frequency Relationship                              E-4
                       E-2                       Crisfield Stage-Frequency Relationship                              E-5
                       E-3                       Pocomoke City Stage-Frequency Relationship                          E-6
                       E-4                       Rock Hall Stage-Frequency Relationship                              E- 7
                       E-5                       Snow Hill Stage-Frequency Relationship                              E-8
                       E-6                       St. Michaels Stage-Frequency Relationship                           E-9
                       E-7                       Tilghman Island Stage-Frequency Relationship                      E-10
                       E-8                       Cape Charles Stage-Frequency Relationship                         E-11
                       E-9                       Hampton Roads Stage-Frequency Relationship                        E-12
                       E-10                      Poquoson Stage-Frequency Relationship                             E-13
                       E-11                      Tangier Island Stage-Frequency Relationship
                                                   (CORPS)                                                         E-14
                       E- 12                     Tangier Island Stage-Frequency Relationship
                                                   (VIMS)                                                          E-15
                       E- 13                     West Point Stage-Frequency Relationship
                                                   (CORPS)                                                         E-16
                       E- 14                     West Point Stage-Frequency Relationship
                                                   (VIMS)                                                          E-17
                       E- 15                     Typical Wall Section                                              E_ 18
                       E-16                      Typical Levee Section                                             E-19
                       E- 17                     First Floor Raising                                               E-22
                       E-18                      Utility Room Addition                                             E-23
                       E- 19                     Flood Shield Installation and Storage Scheme                      E-25
                       E-20                      Gravity Floodwall                                                 E-26
                       E-21                      Typical Gravity Floodwall Cross Section                           E-28

                                                               LIST OF TABLES

                       Number                                         Title

                       E-1          Tidal Flood-Prone Communities: Maryland
                                      and Virginia                                                                 E-27
                       E-2          Cambridge Cost Summary for Structural Plan CA- I                               E-31
                       E-3          Cambridge Cost Summary for Structural Plan CA-2                                E-32
                       E-4          Cambridge Cost Summary for Structural Plan CA-3                                E-33
                       E-5          Cambridge Cost Summary for Structural Plan CA-4                                E-34
                       E-6          Cambridge Cost Summary for Structural Plan CA-5                                E-35
                       E-7          Cambridge Cost Summary for Structural Plan CA-6                                E-36
                       E-8          Cambridge Cost Summary for Nonstructural Plan CA-7                             E-37
                       E-9          Cambridge Cost Summary for Nonstructural Plan CA-&                             E-38
                       E-10         Cambridge Flood Control Alternatives: Estimates of
                                      Annual Equivalent Charges                                                    E-39

                                                                        ii

                                                      LIST OF TA13LES (Cont'd)

                  Number                                          Title                                        Page

                  E-11          Crisfield Cost Summary for Structural Plan CR-I                                E-41
                  E-12          Crisfield Cost Summary for Structural Plan CR-2                                E-42
                  E- 13         Crisfield Cost Summary for Structural Plan CR-3                                E-43
                  E-14          Crisfield Cost Summary for Structural Plan CR-4                                E-44
                  E- 15         Crisfield Cost Summary for Nonstructural Plan CR-5                             E-45
                  E-16          Crisfield Cost Summary for Nonstructural Plan CR-6                             E-46
                  E- 17         Crisfield Flood Control Alternatives: Estimates of
                                  Annual Equivalent Charges                                                    E-47

                  E-18          Pocomoke City Cost Summary for Structural Plan PC-I                            E-49
                  E-19          Pocomoke City Cost Summary for Structural Plan PC-2                            E-50
                  E-20          Pocomoke City Cost Summary for Nonstructural Plan PC-3                         E-51
                  E-21          Pocomoke City Cost Summary for Nonstructural Plan PC-4                         E-52
                  E-22          Pocomoke City Cost Summary for Nonstructural Plan PC-5                         E-53
                  E-23          Pocomoke City Flood Control Alternatives: Estimates of
                                  Annual Equivalent Charges                                                    E-54

                  E-24          Rock Hall Cost Summary for Structural Plan RH-I                                E-56
                  E-25          Rork Hall Cost Summary for Structural Plan RH-2                                t@-57
                  E-26          Ro ,ck Hall Cost Summary for Structural Plan RH-3                              E-58
                  E-27          Rock Hall Cost Summary for Structural Plan RH-4                                t@-59
                  E-28          Rock Hall Cost Summary for Structural Plan RH-5                                E-60
                  E-29          Rock Hall Cost Summary for Structural Plan RH-6                                E-61
                  E-30          Rock Hall Cost Summary for Nonstructural Plan RH-7                             E-62
                  E-31          Rock Hall Cost Summary for Nonstructural Plan RH-8                             E-63
                  E-32          Rock Hall Cost Summary for Nonstructural Plan RH-9                             E-64
                  E-33          Rork Hall Cost Summary for Nonstructural Plan RH-10                            E-65
                  E-34          Rock Hall Flood Control Alternatives: Estimates of
                                  Annual Equivalent Charges                                                    E-66

                  E-35          Snow Hill Cost Summary for Structural Plan SH-1                                E-68
                  E-36          Snow Hill Cost Summary for Structural Plan SH-2                                E-69
                  E-37          Snow Hill Cost Summary for Structural Plan SH-3                                E-70
                  E-38          Snow Hill Cost Summary for Structural Plan SH-4                                E-71
                  E-39          Snow Hill Cost Summary for Nonstructural Plan SH-5                             E-72
                  E-40          Snow Hill Cost Summary for Nonstructural Plan 5H-6                             E-73
                  E-41          Snow Hill Cost Summary for Nonstructural Plan SH-7                             E-74
                  E-42          Snow Hill Flood Control Alternatives: Estimates of
                                  Annual Equivalent Charges                                                    E-75

                  E-43          St. Michaels Cost Summary for Structural Plan SM-1                             E-77
                  E-44          St. Michaels Cost Summary for Structural Plan SM-2                             E-78
                  E-45          St. Michaels Cost Summary for Nonstructural Plan SM-3                          E-79
                  E-46          St. Michaels Cost Summary for Nonstructural Plan SM-4                          E-80
                  E-47          St. Michaels Flood Control Alternatives: Estimates of
                                  Annual Equivalent Charges                                                    E-81

                                                                    iii

                                                         LIST OF TABLES (Cont'd)

                      Number                                        Title                                      Page

                      E-48          Tilghman Island Cost Summary for Structural Plan TI-1                      E-83
                      E-49          Tilghman Island Cost Summary for Structural Plan TI-2                      E-84
                      E-50          Tilghman Island Cost Summary for Structural Plan TI-3                      E-85
                      E-51          Tilghman Island Cost Summary for Structural Plan TI-4                      E-86
                      E-52          Tilghman Island Cost Summary for Nonstructural Plan TI-5                   E-87
                      E-53          Tilghman Island Cost Summary for Nonstructural Plan TI-6                   E-88
                      E-54          Tilghman Island Cost Summary for Nonstructural Plan TI-7                   E-89
                      E-55          Tilghman Island Flood Control Alternatives: Estimates of
                                      Annual Euivalent Charges                                                E-90

                      E-56          Nonstructural Measures Considered for Cape Charles,
                                      Virginia                                                                 E-92
                      E-57          Cape Charles Nonstructural Plan Average Annual Costs                       E-94
                      E-58          Structural and Nonstructural Measures Considered
                                      for Hampton, Virginia                                                    E-96
                      E-59          Hampton Average Annual Cost Computation                                    E-97
                      E-60          Nonstructural Measures Considered for
                                      Pouoson, Virginia                                                       E-99
                      E-61          Pouoson Average Annual Nonstructural
                                      Cost Computation                                                        E-101
                      E-62          Cost of Floodwalls on Tangier to the 100-Year
                                      Corps Tidal Flood Stage                                                 E- 102
                      E-63          Cost of Protecting the Tangier School                                     E- 103
                      E-64          Nonstructural Measures Considered for
                                      Tangier, Virginia                                                       E-104
                      E-65          Annual Costs of Structural and Nonstructural
                                      Plans on Tangier Island                                                 E-106
                      E-66          Nonstructural Measures Considered for
                                      West Point, Virginia                                                    E-108
                      E-67          West Point Average Annual Nonstructural
                                      Cost Computation                                                        E-I10

                                                                      iv

                                                        APPENDIX E

                                     ENGINEERING DESIGN AND COST ESTIMATES

                                                      INTRODUCTION

                Several detailed studies were undertaken in an effort to fulfill the goals and objectives of
                the Chesapeake Bay Program. One of these studies involved the examination of the
                effects of tidal flooding in the Chesapeake Bay Region. Specifically, this study identi-
                fied communities potentially impacted by a flood that is tidal in origin. Preliminary
                plans were then developed for avoiding or minimizing the effects of tidal flooding. The
                purpose of this appendix is to describe the assumptions upon which the preliminary plans
                were based and to provide estimates of costs associated with construction and implemen-
                tation of these plans. Included in this presentation will be a discussion of the stage-
                frequency information used in the hydrologic analysis, a discussion of the types of
                measures considered as well as the cost of these measures, a discussion of the Stage 11
                results (leading to more detailed work by the Norfolk District) and finally, a presentation
                of the cost estimates by plan for each of the communities examined.

                                           STAGE-FREQUENCY INFORMATION

                Generally, serious tidal flooding in the Chesapeake@ Bay Region is caused by storms which
                are classified as either tropical or extratropical in nature. The tropical storms and
                hurricanes are those storms which originate in the lower latitudes and move northward
                into the Bay Region. They are characterized by rather high winds which generate non-
                uniform surges and local extremes in flood heights due to locally intense cells of low
                pressure in combination with variable shoreline configurations and water depths.
                Extratropical storms or "northeasters," on the other hand, are primarily winter storms
                which originate in the middle latitudes and move from the ocean shoreward. Occurring
                more frequently than the tropical storms, the "northeasters" produce a relatively uniform
                surge over wide areas due to an extensive low pressure field in addition to wind stress
                effects. Both types of storms produce flood elevations which are combinations of three
                basic elements: (1) the astronomical tide, (2) the surge associated with the storms, and
                (3) wave set-up superimposed on the raised water level.

                The astronomical tide throughout Chesapeake Bay is predominantly semidiurnal with two
                high waters and two low waters per lunar day of 24.84 solar hours. There is a tendency
                toward mixed diurnal-semidiurnal conditions in the upper half of the Bay which is mani-
                fested by an inequality in successive low water heights in the vicinity of the Choptank
                River and an inequality in successive high water heights in the upper quarter of the 13ay
                (Hicks, f964). The mean tidal range progressively decreases from 3.0 feet at the en-
                trance to a minimum of 0.9 feet at Annapolis, Maryland, increasing thereafter to about
                2.0 feet at the head of the Bay. Due to the Coriolis effect, tidal ranges tend to be larger
                along the Eastern as opposed to the Western Shore at a given latitude, particularly in the
                wider lower half of the Bay.

                Tidal gaging information in the Bay area has been collected for a number of years at
                various locations. Unfortunately, only a few areas have had continuous gaging such that
                reasonably good estimates of flood levels are available: Norfolk, Kiptopeke, Annapolis,
                Baltimore, and Washington for example. For the most part, there are insufficient

                                                            E-1

                     historical records on a Bay-wide basis for accurate flood-level frequency assessment.
                     Also the fact that storm surges within the Bay can vary greatly over a short distance,
                     seriously limits the interpolation or extension of the data between those few stations
                     where reliable tide data exist. Therefore, the need for synthetic data through hydraulic
                     and/or numerical modeling techniques has increasingly become a necessity for the
                     Chesapeake Bay Region.

                     The storm surge problem for any bay system has been approached through several hydro-
                     dynamic methods by many investigators. All past studies concerned only the nearshore
                     and offshore regions of the ocean or only the bay and did not consider a bay-ocean
                     system because previous models weren't compatible with complex coastal configuration
                     and shallow water. Analytical solutions to some simple storm surge problems have been
                     developed by several investigators, such as Lamb (1945), Bretschneider (1966), and Dean
                     and Pearce (1972) but have limited application due to the complexities of actual driving
                     forces, coastal configuration, and topography. A more realistic approach to storm surge
                     problems using numerical techniques was originally proposed by Hansen (1956). Since
                     then many ifivestigators have developed various finite difference numerical schemes for
                     two-dimensional storm surge calculations, such as Platzman (1959), Hansen (1962), Reid
                     and Bodine (1968), Jelesnianski (1965, 1966, 1967, 1970, 1974), Pearce (1972) and Butler
                     (1978).

                     The most advanced stage-frequency information for Chesapeake Bay are the surge
                     predictions developed by the Virginia Institute of Marine Sciences (VIMS) as part of a
                     study for the Federal Insurance Administration. This study determined tidal elevations
                     at 21 selected stations on or near the shore of Chesapeake Bay f or f requencies of 10, 50,
                     100, and 500 years. The hydrodynamic model used was developed by H.S. Chen and is
                     basically a two dimensional depth-integrated numerical model of a bay-ocean system.
                     Although the tributaries of the Bay were excluded from examination in this model, the
                     use of a finite element scheme was employed to more efficiently represent the coastal
                     configuration of Chesapeake Bay. Results obtained from this model were adopted by the
                     Federal Emergency Management Agency (FEM A) f or use in the determination of flood
                     insurance rates and the preparation of flood hazard mapping in the Bay Region.

                     The hydrologic analyses conducted during the Tidal Flooding Study were based on actual
                     tidal data or the previously mentioned VIMS Study. Actual tidal records were used if
                     sufficient data existed to conduct a conventional statistical analysis. This procedure was
                     followed for the communities of Norfolk and Kiptopeke, Virginia. For the communities
                     of Rock Hall and St. Michaels, Maryland, specific tidal data weren't available.
                     Therefore, the stage-f requency relationships established for the VIMS data station near-
                     est the community were assumed to represent the actual stage-f requency relationship for
                     that community. For those communities where both historical gage data stations and
                     VIMS data stations were equidistant - Tangier Island and West Point, Virginia, - both
                     frequency relationships are presented and two sets of damage calculations are carried
                     through the report.

                     It should be noted that due to the nature and extension of some of the data, a sensitivity
                     analysis was conducted which reflected both a I -foot shift in stage and the use of
                     differing sets of frequency curves. It should also be noted that as part of a continuing
                     study effort, a hydraulic/numerical modeling effort is needed to develop stage-frequency

                                                                E- 2

                relationships in all identified critical floo,d-prone communities as well as along all of the
                Bay's major tributaries.

                Figures E-1 through E-14 represent the stage-frequency relationships used for each of
                the communities examined. For the communities analyzed with the VIMS information,
                curves were drawn from data provided for the 0.1, 0.2, 0.01, and 0.02 recurrence proba-
                bilities (in heights above the National Geodetic Vertical Datum of 1929). For the
                communities analyzed with historical gage information, the stage-frequency curves were
                drawn from data provided for the 0.8 to 0.01 probabilities of recurrence (in heights above
                mean sea level). Wave height analyses have also been made for the Federal Emergency
                Management Agency at Cape Charles, Poquoson, and Tangier. In Hampton Roads, studies
                have been made at Hampton, Newport News, Norfolk, Portsmouth, and Virginia Beach.
                The maximum wave height varied from 2.2 to 4.5 feet above the stillwater elevation of
                the'100-year flood (0.01 probability of recurrence). The results of these examinations
                and their impacts upon average annual damages are found in Appendix B - Plan
                Formulation, Assessment, and Evaluation.

                                                 ENGINEERING DESIGN

                STRUCTURAL MEASURES

                FLOODWALLS

                The floodwalls considered were of the inverted 'IT" type and were based on design cri-
                teria contained in Engineering Manual 1110-2-2501 - Wall Design: Flood Walls. The
                walls would'be constructed of reinforced concrete with three feet of freeboard above the
                design heights. The design heights were generally selected to protect against the 100-
                year and 500-year flood event based on recurrence intervals determined for each
                community. Since the topography of each community varies as does the predicted flood
                height, floodwalls with heights ranging from two feet to ten feet above ground were
                examined. A section of a typical flood wall is presented in Figure E-15.

                FLOOD LEVEES

                Constructed of impervious material, the earth levees would have 10-foot widths and side
                slopes of one vertical on three horizontal. An inspection trench would be excavated
                under all levees to a depth of nine feet. This trench would have a bottom width of 10
                feet with side slopes of one vertical on one horizontal. Armoring, through the use of
                riprap, would be provided on the water side of the levees. The tops of the levees would
                be set at the design water surface elevation plus three feet of f reeboard. The same
                design heights were investigated for levees and structural plans with floodwall and levee
                combinations. Figure E-16 presents a section view of a typical levee. With the
                construction of any floodwall. or levee, additional features and considerations would be
                required to include providing for access to wharves and piers, dewatering measures,
                closure structures for other than major roadways, and interior drainage facilities.
                However, these features weren't included in the development of plans and costs were
                developed only in cases where cost-benefit analyses indicated more detailed study was
                warranted.

                                                           E-3

                                                                       PROBABILITY           46 8003
                                                               WE X 90 DIVISIONS              A.f 114 U S.A.
                                                                           KEUFFEL 8 ESSER CO.

                                         sc,                                                         FREQUENCY IN YEARS
                     "M               99.9 99.8-0         9,9   @oo        95       199         so      70    60     50    40      30      20         10       5         2       1    0.5     0.2 0.1 0.05         0.01
                                                                                                                                          I _41t   -

                                                                                            t

                                                                                                                       M-M           i-M

                                                                                                                                     [J-Ill

                                                                                                                                                            FIGURE E-1

                                                                                                                                     CJAMRIDGE        STAGE-FREQUENCY RELATIONSHIP'.
                     (p                                                          at
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                     2
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                                                                                            PERCENT CHANCE           OF    OCCURRENCE

                                                                  Kok                            MAOE IN U 2, A.
                                                                              KEUFF" IN ESSER CO.

                                                                                                         FREQUENCY IN           YEARS
                                                                                       10
                                          A91 p           199c, -,P           95        90          go      70     60     so    40      30       20            10      5         2      1     0.5     0.2 0.1 0.05         0.01

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                                                               -ij- -                                          TH    I I
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                                                                                                PERCENT CHANCE             OF   OCCURRENCE

                                                                      PROBABILITY            46 8003
                                                              WE X go DIVISIONS              Aug 1. U.S. A.
                                                                          KEUFFEL & ESSER CO.

                                                                                                     FREQUENCY IN YEARS
                                        Soo             AW 90                       AD
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                                                                                                                                                            FIGURE      E-3
                                                                              -4- k -

                                                                                                                                           POCOMOKE       CITY     STAGE-FREQUENCY
            z
                                                                                                                                                        RELATIONSHIP
            C)   iz                                                                                                                  BASED      ON PRELIMINARY DATA PROVIDED BY

                                                                                                                                       VIMS     FIA     STUDY     (GUARD     SHORES, VA.)
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                                                                                             PERCENT CHANCE OF OCCURRENCE

                                                       W>e @"9-0"DIVISIONS        AD[ IN U. 9 A.
                                                                  KEUFFEL. A ESSEFt CO.

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                                     Sao 100so                            to
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                                                                                                                                          FIGURE    E-

                                                                                                                    ROCK    HALL STAGE-FREQUENCY RELATIONSHIP

                 lz                                                                                                 BASED ON PRELIMINARY            DATA PROVIDED        BY

                                                                                                                       VIMS FIA STUDY (TOLCHESTER MD.)

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                                                                          1-1 T                              4- ff
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                  0.01      0.05 0.1 0.2    0.5          2                10       20      30   40    50    60    70     of)       90      95       98    99          99.8 99.9        -99.99

                                                                                 PERCENT CHANCE OF          OCCURRENCE

                                                   PROBABILITY      468003
                                              WE X 90 DIVISIONS    ADE IN U.S.A.
                                                      KEUFFEL & ESSER CO.

                                                                        FREQUENCY IN    YEARS
                              Soo        100 so             to
                99."        99.9 99.8     99   98      95    90      80   70   60   50   40  30    20      10    5       2    1  0.5   0.2 0.1 0.05   0.01

                                                                                                                                         :77
                                                                                                                            -I-  A
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                                                           -4.

                                                                                  t- t
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                                                                                                               FIGURE E-5

            0
                Z.                                                                                              -F     ENCY RELATIONSHIP
        00                                                                     TUT      j

                                                                                                                                         BY
                                                                                               BASED ON PRELIMINARY DATA PROVIDED

                                                                                                 VIMS FIA STUDY (GUARD SHORES,      VA.)
                                                                             I

                                                                        F
                                                                                     T fitH   F                 . . . . . . . . . . . .
                (p                                      .. .....
                                        4-1
                                      JV
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                                                                               111:1 --11-                    tf- -
                0.01    0.05 0.1 0.2 0.5   1   2        5    10      20   10   40   50   60  70    80      90    95     98   99        99.8 99.9     99.99

                                                                   PERCENT   CHANCE OF  OCCURRENCE

                                                                                  PROBABILITY               4 6 b L4J.%
                                                                                  X go DIVISIONS            MADE IN U.S.A.
                                                                                       KEUFFEL & ESSER CO.

                                                                                                                     FREQUENCY IN YEARS
                                                 500              160 SO                         10
                                            99.9 Wa                99      98          95         90           so       70      60-    so      40     30       20            10         5          2        1     0.5      0.2 0.1    0.05        0.01

                                        LI-I I f
                                                                                                                                               It        fl-
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                                                                                                                                                                                                             TE E
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                                                                                           --- Rl         I           I       t t 01                 t]
                                                                                                                                                                                                               Q
                                                                                                                                                                    ST.     MICHAELS STAdE-FRE UENCY
                                                                                                                                                                                    RELATIONSHIP

                   FZ4
                                                                                                                                                          BASED ON PRELIMINARY DATA PROVIDED                                   BY
                        10
                   w                                                                                                                              -1E
                                                                                                                                                              VIMS      FIA STUDY (MATAPEAKE, MD.)

                                                                                                                                                                        TJ          J--.-:f
                                                                                                                        I          fl                                                                                       - - - - - - - -
                                                                                                                      tl            X -           -
                                                                                                  f
                                                                                                            tlll- ----1    -4           -R        4       1 H141         11

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                                           FVIER-@-                                                                               ---I-tf
                         0.01         0.05 0.1    0.2      0.5     1       2           5         10           20        30     40      50      60     70       80           90         95          98      99              99.8 99.9              99.99

                                                                                                           PERCENT CHANCE OF OCCURRENCE

                                                                               PROBABILITY                468003
                                                                      K-E x 90 DIVISIONS                  A.f IN U.S. A.
                                                                                    KEUFFEL IS, ESSER CO.

                                                                                                                  FREQUENCY IN YEARS
                                            Soo              loo      150                      lo
                                        ".9 99.8               99      98           95         90           80        70     60      50     40      30        20           10         5            2       1     0.5      0.2 0.1 0.05             0.01

                                                                                                                                                            T:
                                                                                                                    f 'l-, I
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                   12 -k                                                      -1 -                                                                                                   FIGURE E-7
              z                                                                                                                                                 TILGHMAN         ISLAND STAGE-FREQUENCY
                                                                                               . . . . . .                                                                        RELATIONSHIP
                   10
                                                                                                                                                        BASED ON         PRELIMINARY DATA PROVIDED                           BY
                                                                                         -.4                                                  T-
       C)
                                                                                                                          41@                           VIMS FIA          STUDY (CHESAPEAKE                   BEACH,       MD.)

                    (10                                                                        tt
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                             =1441111-
                                                                                                                                                                                                                       q- -T - - 44-

                                                                                                                 w - 41,11-414 1                1 -1114-      11-11-1-4411- 14-H-4-1 -
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                                                         f@
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                                                                                                                                                                                                                                                =1
                     0.01         0.05 0.1     0.2      0.5     1       2           5          10           20        30     40      So     60       W)       80           90         95          98      99              99.8 99.9               99.99
                                                                                                         PERCENT         CHANCE OF OCCURRENCE

                                                                                                                         FIGURE E-8

                                                                                           CAPE CHARLES STAGE-FREQUENCY RELATIONSHIP

                                                                                                                    PERCENT CHANCE OF OCCURRENCE
                           cr C-1 1-1       id'                                                4                                  2                                  1                                                                                -2
                                   0

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                                                 0                                  2                   3              4           5        6      7      8 9 loo                                        2                                 4          500
                                                                                                                                  FREQUENCY IN YEARS

                                                                                                    FIGURE E-9

                                                                          HAMPTON ROADS STAGE-FREQUENCY RELATIONSHIP

                                                                                            PERCENT CHANCE OF OCCURRENCE
                               10 10                                       4                            2                                                                                                  .2
                       0

                    m
                    CL
                    m t-I
                    pi 0
                    0) 0
                       t:l

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                                  6

                                  5
                                   10                            20-_             30          40       50                            100                          200             300                   500
                                                                                                         FREQUENCY IN YEARS
                                                            _'.000@

                                                                                                             FIGURE E-10

                                                                                      POQUOSON STAGE-FREQUENCY RELATIONSHIP

                                                                                                      PERCENT CHANCE OF OCCURRENCE
                     lb z            10 10                                        4                                2                                                                                                           .2
                 CL  0  0
                     CL -4  o
                        m
                 :J  Cl El
                 p   H  w
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                                     6

                                     5
                                       10                              20                 30            40        50                              100                             200               300                      500

                                                                                                                    FREQUENCY IN YEARS

                                                                                                                                                                                                  FIGURE E.-Il

                                                                                                                               TANGIER ISLAND STAGE-FREQUENCY RELATIONSHIP - CORPS

                                                                                                                                                                                      PERCENT CHANCE OF OCCURRENCE
                                                           10                                                                                                                                                2                                                           1                                                                                                                                          .2
                                0 0
                                cu    4           0
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                                                                     oo@

                                                             5
                                                                 10                                                          20-                                30                       40                50                                                          100                                                        200                              300                                          500

                                                                                                                                                                                                              FREQUENCY IN YEARS

                                                                FIGURE E-@12

                                            TANGIER ISLAND STAGE-FREQUENCY RELATIONSHIP    VIMS

                                                      PERCENT CHANCE OF OCCURRENCE
             20                                      10              4           2          1                           2

             10

              5

              4
       t1i
        LIn
            z 3

            z
            0
            @-4
              2

               1           2      3   4   5           10                        50         100                                   1000
                                                       FREQUENCY IN YEARS
                                              From FLOOD INSURANCE STUDY, TANGIER, VA. 15 April, 1982
                                              by Federal Emergency Management Agency.

                                                                                         FIGURE E-13

                                                                14EST POINT STAGE-FREQUENCY RELATIONSHIP - CORPS

                                                                                    PERCENT CHANCE OF OCCURRENCE
                0 z @.i     10 10                                  4                          2                          1                                                              .2
                ::$ 0 "
                Q,   0

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             rt 0    0

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                              5
                               10                         20              30         40      50                         100                        200           300                  500

                                                                                               FREQUENCY IN YEARS

                                                                                 FIGURE E-14-

                                                             WEST POINT STAGE-FREQUENCY RELATIONSHIP               VIMS

                                                                     PERCENT CHANCE OF OCCURRENCE
            0) En w     10                               4                       2                       1
            ::1 10 cu
            IL m  (n
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                         10                                                     50                      100                                                   500
                                                                                 FREQUENCY IN YEARS

                                                                       51
                                                                       4"
                                                                34
                          DESIGN WATER SURFACE EL.

                                                                             h

                                                                                      H

            EXIST. GROUND LINE                  STRIPPING2

                                                                             3'

                                                                          @-O
                                                                             .9 H' I
                                                                           -4

                                          1.50

                            8.5'                             OAH'                         4.S'

              FIGURE E-15   TYPICAL WALL SECTION

                                                      E-18

     DESIGN WATER SURFACE EL.---)    3'                        3

                                                  h

               RIPRAP                                                     SEED & SOD
           (OPTIOMAL)

                                                                                   3
                      LSTRIPPING                 911         1     INSPECTION

                                                                      TRENC,

                                            --40 4.. 6

                                              36- + 6h

                                        NOT TO SCALE

           FIGURE E-16 TYPICAL LEVEE SECTION

                                                  E-19
                                                        @0060
                                                                  \SEED        &
                                                 L-1 @11

                    STEEL SHEET PILE BULKHEAD

                    During the investigation, it was determined that the cost per linear foot for concrete
                    floodwalls was similar to that for steel sheet pile bulkhead. It was then assumed that the
                    results of any evaluations for floodwalls would also apply to steel sheetpiling. Therefore,
                    a separate detailed evaluation wasn't conducted for steel sheet pile bulkhead.

                    NONSTRUCTURAL MEASURES

                    The guidelines used for consideration of nonstructural measures were based on an update
                    of information developed as part of the Baltimore District's Susquehanna ikiver basin
                    Flood Control Review Study. This information was published in Institute for Water
                    Resources (IWR) Pamphlet No. 4, Cost Report on Non-Structural Flood Damage
                    Reduction Measures for Residentiil -Buildings Within the Baltimore District July 1977.
                    The degree of tidal flood protection investigated varied from community to community
                    but was based on the recurrence level associated with even-foot increments of flooding
                    from the point of zero damage to the approximate level of the one hundred year flood. A
                    combination of the most appropriate measures to protect all structures in a community
                    at a particular depth of flooding was referred to as a "plan." Further, a nonstructual plan
                    wasn't developed for any depth of community flooding unless a minimum of 20 structures
                    received flood damages. Selection of the appropriate nonstructural measure for any
                    structure was. based on factors to include the age of the structure, the type of construc-
                    tion, the depth of flooding, and cost effectiveness. The nonstructural measures
                    considered are presented in the following paragraphs.

                    RAISING OF STRUCTURE

                    Raising of the first floor was considered for both residential and commercial structures
                    in good condition with a first floor area less than 1,500 square feet. The heights to which
                    structures were to be raised were selected to keep flood waters below the first floor and
                    to permit an even number of courses of eight-inch concrete block to be used (e.g. heights
                    of V 411, 21 811, 31 411, 41 0", and 51 411). For each height increment it was assumed that
                    nothing would be done to prevent basement flooding. However, if necessary, the
                    construction of a utility room to accommodate utilities and mechanical equipment was
                    considered. Only the main structures were considered for raising; storage sheds and
                    other outbuildings were considered to remain at their existing elevation. The following
                    assumptions were made in the evaluation of this alternative:

                         1. Houses with concrete block foundations could adequately support the additional
                    layers of block required for the raisings,

                         2. Houses with stone, brick, or combination stone-concrete foundations were
                    considered incapable of supporting the additional layers of block required for the
                    raisings,

                         3. New footings would have a 28-day compressive strength of 2,500 pounds per
                    square inch,

                         4. Houses would be raised by using steel beams and jacks, and

                         5. Estimates of costs would include the house raising, the removal of the existing
                    foundation, new foundation work, and landscaping.

                                                              E- 20

                 The success of this alternative would be contingent upon the structural soundness of the
                 existing foundations and the buildings themselves. This determination, however, would
                 require a detailed structural analysis of each building. Costs reflective of this analysis,
                 therefore, were not included. Figure E- 17 shows typical house raisings for two different
                 elevations with respect to the structure and existing ground conditions.

                 UTILITY ROOM ADDITION

                 Construction of a wood-frame utility room adjacent to the structure at the first floor
                 level was considered for homes receiving basement flooding only and for those few homes
                 with basements that had their first floors raised above design flood levels. Estimates of
                 the costs included all excavation and foundation work, construction of the superstructure
                 itself, all electrical work, relocation of equipment, and provision of a check valve in the
                 sanitary lines. Figure E-18 illustrates a typical addition of a utility room to the main
                 structure.

                 RELOCATION OF STRUCTURE

                 Relocation of a residential structure to a new site beyond the limits of the flood plain
                 was considered for homes and trailers in good condition which are subject to frequent and
                 substantial (depths of two feet or more) flooding. This alternative entailed disconnecting
                 and capping all utilities at the present site, removal of obstructions enroute to the new
                 location, construction of a new foundation at the relocation site, razing or backfilling at
                 the abandoned site, connection of utilities at the new site, and any grading and land-
                 scaping necessary at the new site. The cost for these items was based on the following
                 assumptions:

                      1. The house or trailer could be relocated within a 10-mile radius,

                     2. A new housing site was available along an existing public road with utililty
                 services, and

                     3. The existing electrical and mechanical fixtures in the structure to be relocated
                 complied with local building codes.

                 For the purpose of this report, the additional costs associated with relocations were
                 assumed to include only the purchase of the land at both the old and new sites. No costs
                 were included for purchase of the home or resettlement expenses as implied by the
                 Uniform Relocation Assistance and Real Property Acquisition Policies Act of 197U,
                 Public Law 91-646, Section 302(a). If the purchase of a property owner's house and other
                 improvements located on the land became mandatory, then the costs to move the house
                 would be incurred by the property owner. The property owner would then be eligible for
                 resettlement benefits which would have to be included in the assessment.

                 ACQUISITION AND DEMOLITION

                 This measure was considered for both commercial and residential structures less than
                 3,000 square feet in area, in poor condition, and subject to frequent and substantial
                 (depths of two feet or more) flooding. Included in the cost assessments were: 1) the
                 cost of purchasing a particular structure and relevant land area at a fair and reasonable
                 price; 2) the costs associated with demolition of the structure; 3) site restoration costs

                                                            E- 21

                                                              FIRST FLOOR
                               DESIGN                                ABOVE
                           FLOOD LEVEL      17                       LEVEL
                                                         2 OURSES
                                                         8" CONC. BLOCK
                                                  IKEXISTING FIRST
                                                         FLOOR ELEVATION

                                                              EXISTING BASEMENT
                                                                    FLOOR
                                                                 (TO REMAIN)

                                           RAISING FIRST       FLOOR 1 l-411

                                                                 FIRST FLOOR
                                                                 RAISED ABOVE
                                DESIGN                           FLOOD LEVEL
                              FLOOD LEVEL 17
                                                       ,5,,COURSES
                                                         8 CONC.BLOCK

                                                         EXISTING FIRST
                                                         FLOOR ELEWTION

                                                         NEw BASEMENT FLOOR

                                                         FILL  EXISTING BASEMENT FLOOR
                                                                   TO    REMAIN

                                           RAISING    FIRST FLOOR 3#-4"
                                   @N
                                     L@
                                          L

                FIGURE E-17 FIRST FLOOR RAISING

                                                          E-22

                              WWI

              UTILITY ROOM
              AWTZN TO
              Fftl FLOOR

                                                     ME04ANICAL AND ELECTRI
                                                      CmNT     RELOCATED
                                                       FROM &W MT

                     FIGURE E-18 UTILITY ROOM ADDITION

                                                 E-23

                    incurred by filling, grading, and seeding; and 4) relocation and resettlement expenses for
                    the owner. Site restoration did not include the razing of public streets or sidewalks. It
                    should be noted that the cost assessment included an allowance for acquisition costs in
                    conformance with the requirements of PL 91-646.

                    FLOODPROOFING

                    Flood Shields

                    Floodproofing of existing structures was considered for only those commercial buildings
                    constructed of block or brick and in good structural condition. The guidelines used were
                    based upon the requirements of Engineering Pamphlet 1165-2-314, Flood-Proofing
                    Regulations June 1972, together with information concerning large flood shields
                    developed during the Susquehanna River Basin Flood Control Review Study. In the
                    evaluation of this alternative, the following assumptions were made:

                         1) Floodproofing was not applicable to metal or wood-frame structures,
                         2) All buildings would be floodproof ed to an elevation one foot above the design
                    flood with an upper limit of six feet above the first floor,

                         3) All windows and doors with a majority of the opening (75 percent or more) below
                    the design flood- stage would be closed permanently bX brick,
                         4) Small windows and doors with openings above the design flood stage would be
                    protected by installation of 1/4-inch thick aluminum flood shields,

                         5) Openings of 10 feet or more horizontally would receive large flood shields with
                    vertical supports on 10 foot centers,

                         6) Costs for large flood shields, whether for placement in windows or doors, were
                    the same, and

                         7) Aesthetics were not considered.

                    Estimates of costs would include the cost of flood shields and related appurtenances,
                    costs for permanent closure of inundated openings by brick, costs of waterproofing the
                    existing structure with a polyethylene coating, and costs of installing an adequate
                    n4mber of sump pumps and backflow valves in utility lines. Costs associated with
                    storage and installation of the flood shields were not included in the estimate.
                    Depending upon the size and number of flood shields required, this cost could merit
                    additional consideration. Figure E-19 presents an installation and storage scheme for
                    large flood shields. The success of this alternative would be contingent upon the
                    structural soundness of the buildings and the assumptions made regarding the size and
                    number of openings in each structure.

                    Floodwalls

                    The use of small floodwalls for floodproofing was considered for those types of
                    commercial buildings for which no other nonstructural measure was found economically
                    or structurally feasible. Floodwalls were selected rather than levees because of the tight
                    space requirements encountered in most of the communities. Figure E-20 shows the
                    placement of a typical gravity floodwall with respect to its location to the structure.

                                                             E-24

                                                                  STORED FLOOD
                                                                  SHIELD WITH
                                                                  STIFFENERS

               SEALING
               FRAME

                                                                   COUNTERWEIGHT

                                FLOOD SHIELD BEHIND WINDOW
                            LOWERED INTO POSITION & ATTACHED TO
                        FRAME WITH QUICK DISCONNECT TYPE FASTENER&

           FIGURE E-19 FLOOD SHIELD INSTALLATION AND STORAGE SCHEKE

                                            E-25

                                                          REGULATORY FLOOD DATUM

                                                           FLOODWALL

                                FLOOD PROTECTION WITH FLOODWALLS

              FIGURE E-20 GRAVITY FLOODWALL
                                                   @-'FLOO@DWALL

                                                 E-26

                The floodwalls themselves were of the standard gravity-type based on design criteria
                contained in EM 1110-2-2501. The walls would be constructed of reinforced concrete and
                would be designed to include between one and two feet of freeboard, depending on the
                proximity of the wall to the waterfront. Design-heights were selected to protect against
                occurrences as low as the 15-year event and as high as the 100-year event. The
                corresponding wall heights investigated, accounting for changing topography, varied from
                two feet to eight feet above the original ground line. Figure E-21 provides an illustration
                of a typical wall section.

                Provisions for access to buildings, wharves, or piers, dewatering measures, closure struc-
                tures of all types, and interior drainage facilities would have to be made with
                construction of these walls. However, these features weren't included in the evaluation
                of this measure. Due to the sandy composition and questionable foundation conditions in
                all of the communities, detailed subsurface investigations would be required to determine
                the necessity and extent of using piles.

                                      FLOOD CONTROL PLAN COST ESTIMATES

                As a result of the preliminary tidal flooding analyses conducted in 1979 and 1980, 12
                communities within the Chesapeake Bay Region were identified as having potential need
                for a Federally-sponsored tidal flood control project. These communities are listed in
                Table E-1. Because of the areal expanse of the Bay Region, and because of the
                jurisdictional location of these communities, the Baltimore District, Corps of Engineers
                requested that the Norfolk District conduct the assessment of the tidal flooding problems
                in the Commonwealth of Virginia while the Baltimore District investigated the Maryland
                communities.

                                                       TABLE E-1

                                         TIDAL FLOOD-PRONE COMMUNITIES
                                              MARYLAND AND VIRGINIA

                                      MARYLANDI                          VIRGINIA 2

                                      Cambridge                          Cape Charles
                                      Crisf ield                         Hampton Roads
                                      Pocomoke City                      Poquoson
                                      Rock Hall                          Tangier Island
                                      Snow Hill                          West Point
                                      St. Michaels
                                      Tilghman Island

                    I Assessment and evaluation of tidal flood control plans for these communities was
                conducted by the Baltimore District, Corps of Engineers.
                    2 Assessment and evaluation of tidal flood control plans for these communities was
                conducted by the Norfolk District, Corps of Engineers.

                                                          E-27

                       DESIGN WATER SURFACE EL.

                  EXIST. GROUND LINE

                                                                       6

                        FIGURE E-21 TYPICAL GRAVITY FLOODWALL CROSS SECTION

                                                      E-28

                Alternative measures were examined and structural and nonstructural flood control plans
                and cost estimates were developed for each community. The cost estimates were
                prepared for each of the plans to a level of detail sufficient to determine economic
                feasibility. Costs for items which required extensive data collection and detailed
                analyses, whether of a structural or nonstructural nature, weren't included in the
                generalized determination of plan feasibility. Those items that were excluded (e.g.,
                interior drainage for floodwalls, structural analyses for floodproofing) have been
                addressed in the discussion of individual measures presented in the previous section of
                this appendix.

                Based on the benefit-cost ratios developed, several of these community flood control
                plans were identified as meriting further study and investigation. The communities
                identified for further study are located in Virginia and include Cape Charles, Hampton
                Roads, Poquoson, Tangier Island, and West Point. None of the Maryland communities
                were examined further because the economic rationale necessary for further evaluation
                was not sufficient. This is discussed further in Appendix F - Economics.

                As the Virginia communities were studied in more detail, the cost estimates presented
                for each of the Virginia communities plans differ in both detail and price level from the
                costs developed for the Maryland communities. For this reason, then, a discussion of the
                cost estimating procedures used for the Maryland communities in 1980 and the Virginia
                communities in 1983 is presented in the following sections.

                MARYLAND COMMUNITIES

                The Baltimore District developed cost estimates for both structural and nonstructural
                flood control alternatives for each of the seven communities studied. Costs for
                structural alternatives were developed to reflect April 1980 price levels.

                Quantities of principal construction items were estimated on the basis of the design f ea-
                tures previously discussed. Unit costs were applied to the quantities to arrive at total
                costs, except for lump sum items. The structural cost estimates include a 30 percent
                contingency allowance for construction items. Also included is a 20 percent allowance
                for supervision and administration costs and engineering and design costs to include
                design studies, design memorandums and plans and specifications.

                Nonstructural cost estimates were based on information contained in IWR Pamphlet No.
                4, Cost Report on Non-structural Flood DamMe Reduction Measures for Residential
                Buildings within the Baltimore District. After having reviewed these for application to
                the communities under study, the costs were updated to April 080 price levels. For
                residential structures, construction contingencies were estimated to be 20 percent while
                engineering and design and supervision and administration contingency costs were
                estimated to be I percent.                  I

                Commercial structures which required floodproofing or small floodwalls received a 30
                percent allowance for construction contingencies while engineering and design and
                supervision and administration contingency costs were estimated at 20 percent. Real
                estate values for lands and buildings, whether structural or nonstructural plans, were
                determined from a review of sales and assessed valuations of commercial, residential,
                and"vacant parcels of land for each community. These real estate values include a 20
                percent allowance for contingencies.

                                                         E-29

                     Estimates of annual equivalent costs were computed using an interest rate of 7 1/8
                     percent (Fiscal Year 1980) and include amortization and operation and maintenance
                     costs. A 100-year economic life was assumed in evaluating plans associated with levees,
                     floodwalls, and bulkheads; a 50-year period of analysis was used in estimating annual
                     equivalent costs for all nonstructural alternatives. For a more complete description of
                     the plans and the evaluation process, refer to Appendix B - Plan Formulation,
                     Assessment, and Evaluation.

                     CAMBRIDGE

                     A total of eight tidal flood control plans were developed for Cambridge, Maryland. Six
                     structural plans and two nonstructural plans were considered. The structural plans
                     included both a levee and a floodwall with each plan differing in either area or degree of
                     protection. Structural plans CA-1 to CA-3 were designed to protect against flooding up
                     to and including the 120-year event. The differences in cost which are reflected in
                     Tables E-2 through E-4 are due to the length of the levees and floodwalls.

                     Structural plans CA-4 through CA-6 are also composed of levees and floodwalls.
                     However, these three plans were designed to protect against floods approxirmating the
                     500-year event. These plans are the most expensive ranging in costs from )-6.06 million
                     to $9.12 million as shown in Tables E-5 to E-7.

                     Two nonstructural plans, CA-7 and CA-&, were developed for the Cambridge area. Plan
                     CA-7 was designed to provide protection against a 40-year flood. This plan required
                     utility additions for five structures, floodproofing of nine structures and construction of
                     a small floodwall. Plan CA-8 protected against the 120-year event by providing for
                     seven utility room additions, floodproofing of 10 structures and construction of an 1,100
                     foot floodwall. As shown in Tables E-8 and E-9, Plan CA-8 is more than twice as
                     expensive as Plan CA-7. Estimates of annual equivalent charges for the structural and
                     nonstructural plans are shown in Table E-10.

                                                              E-30

                                                             TABLE E-2

                                               CAMBRIDGE COST SUMMARY FOR
                                                    STRUCTURAL PLAN CA-1
                                                (120-Year Event - 9 Foot Elevation)
                                                          April 1980 Costs -

                  DESCRIPTION               QUANTITY            UNIT UNIT COST                       COST
                                                                                           FEDERAL         NON-FED

                  Lands
                    Levee                             3.5         AC         $20,000        $      0       $ 70,000
                    Wall                             7.9          AC          25,000               0         197,500
                         Sub-total                                                                 0         267,500
                    Contingencies                                               20%                0           53,500

                  Relocations (None)

                  Levee (3,430 FT.)
                    Stripping                      5,150        C.Y.            2.50         12,875                0
                    Trenching                    21,700         C.Y.            2.50         54,250                0
                    Tot. Embankment              38@900         C.Y.            7.00        272,300                0
                    Riprap                         2,400        C.Y.          103.00        2471200                0
                    Seed & Sod                   10,350         S.Y.            0.45           4,658               0
                    Clearing                           -        JOB             L.S.         10,000                0
                    Closure Structure                  -        JOB             L.S.        105,000                0

                  Floodwall (12,050 FT.)
                    Concrete                     14,200         C.Y.          200.00      2,840,000                0
                    Steel                     1,623,100          LB.            0.50        811,550                0
                    Fill                         30,000         C.Y.            3.00         90,000                0
                    Seed & Sod                  240,300         S.Y.            0.45        108,135                0
                    Excavation                   28,900         C.Y.            2.20         63,580                0
                    Stripping                    11,500         C.Y.            2.50         28,750                0
                    Clearing                          -         JOB             L.S.         10,000                0
                    Closure Structure                                               -              -               -
                         Sub-total                                                        4,658,299                0
                    Contingencies                                               30%       1,397,702                0
                         Sub-total                                                        61056,000                0
                    E&D                                                         15%       @9089250                 0
                    S&A                                                           5%        302,750                0
                         Sub-total                                                       @72267XO           )321,000
                  Total Cost               (April 1980)                                          $7,588,000

                  AC - acre
                  C.Y. - cubic yard
                  LB. - pounds
                  S. Y. - square yard
                  L.S. - lump sum

                                                                E- 31

                                                                 TABLE E-3

                                                   CAMBRIDGE COST SUMMARY FOR
                                                        STRUCTURAL PLAN CA-2
                                                    (120-Year Event - 9 Foot Elevation)
                                                              April 1980 Costs -

                      DESCRIPTION               QUANTITY           UNIT UNIT COST                         COST
                                                                                               FEDERAL          NON-FED

                      Lands
                        Levee                            1.61        AC          $20,000        $       0       $ 32,000
                        Wall                              6.4        AC           25,000                0         160,000
                             Sub-total                                                                  0         192,000
                        Contingencies                                                20%                0          38,400

                      Relocations (None)

                      Levee (1,610 FT.)
                        Stripping                     2,400          C.Y.            2.30           6,000               0
                        Trenching                    10,200          C.Y.            2.50         25,500                0
                        Tot. Embankment              18,000          C.Y.            7.00       126,000                 0
                        Riprap                        1,200          C.Y.         103.00        123,600                 0
                        Seed & Sod                    4,700          S.Y.            0.45           2,115               0
                        Clearing                           -         JOB             L.S.         10,000                0
                        Closure Structure                  -         JOB             L.S.         90,000                0

                      Floodwall (9,790 FT.)
                        Concrete                     119600          C.Y.         200.00      2,320,000                 0
                        Steel                      1,329,100         LB.             0.50       664,550                 0
                        Fill                         24,400          C.Y.            3.00         73,200                0
                        Seed & Sod                   195,900         S.Y.            0.45         88,155                0
                        Excavation                   23,600          C.Y.            2.20         51,920                0
                        Stripping                     @,400          C.Y.            2.50         23,500                0
                        Clearing                           -         JOB             L.S.         10,000                0
                        Closure Structure                                               -               -               -
                             Sub-total                                                        3,614,540                 0
                        Contingencies                                                30%      1,084,460                 0
                             Sub-total                                                        41699,000                 0
                        E&D                                                          15%        @704,gjO                0
                        S&A                                                            5%       234,950                 0
                        Sub-total                                                             $5,638,800        $230,400
                      Total Cost               (April 1980)                                          $5,869,200

                      AC - acre
                      C.Y. - cubic yard
                      I.B. - pounds
                      S.Y. - square yard
                      L.S."- lump sum

                                                                     E-32

                                                              TABLE E-4

                                               CAMBRIDGE COST SUMMARY FOR
                                                     STRUCTURAL PLAN CA-3
                                                (120-Year Event, 9 Foot Elevation)
                                                         - April 1980 Costs -

                  DESCRIPTION               QUANTITY           UNIT UNIT COST                         COST
                                                                                           FEDERAL           NON-FED

                  Lands
                    Levee                            0.1           AC         $20,000               0            2,000
                    Wall                             6.2           AC          25,000               0          155,000
                          Sub-total                                                                 0          157,000
                    Contingencies                                                20%                0           31,400

                  Relocations (None)

                  Levee (120 FT.)
                    Stripping                        125         C.Y.            2.50             320                0
                    Trenching                        760         C.Y.            2.50.          1,900                0
                    Tot. Embankment                 1,025        C.Y.            7.00           7,175                0
                    Riprap                              0        C.Y.          103.00               0                0
                    Seed & Sod                       300         S.Y.            L.S.             500                0
                    Clearing                            -                                           -                -
                    Closure Structure                   -                             -             -                -

                  Floodwall (9,600 FT.)
                    Concrete                      11,400         C.Y.          200.00       2,280,000                0
                    Steel                      1,304,550          LB.            0.50         6522275                0
                    Fill                          24,000         C.Y.            3.00         72,000                 0
                    Seed & Sod                   192,300         S.Y.            0.45         86,535                 0
                    Excavation                    23,100         C.Y.            2.20         50,820                 0
                    Stripping                      9,200         C.Y.            2.50         23,000                 0
                    Clearing                                     JOB             L.S.         10,000                 0
                    Closure Structure                  -                             -              -                -
                          Sub-total                                                         3,184,525                0
                    Contingencies                                                30%          955,475                0
                          Sub-total                                                         4,140,000                0
                    E&D                                                          15%        $621,000                 0
                    S&A                                                            5%         207,000                0
                          Sub-total                                                       @4,968,000         @188@400
                  Total Cost               (April 1980)                                            $5,156,400

                  AC - acre
                  C.Y. - cubic yard
                  LB. - pounds
                  S.Y. - square yard
                  L.S. - lump sum

                                                                 E-33

                                                                  TABLE E-5

                                                      CAMBRIDGE COST SUMMARY
                                                      FOR STRUCTURAL PLAN CA-4
                                                    (500-Year Event, 11 Foot Elevation)
                                                               April 1980 Costs -

                      DESCRIPTION                QUANTITY           UNIT UNIT COST                        COST
                                                                                               FEDERAL          NON-FED

                      Lands
                         Levee                            4.6          AC         $20,000        $      0           92,000
                         Wall                             8.3          AC          25,000               0         207,500
                              Sub-total                                                                 0         299,500
                         Contingencies                                               20%                0           592900

                      Relocations (None)

                      Levee (3,534 FT.)
                         Stripping                    6,800         C.Y.             2.50         17,000                0
                         Trenching                   22,400         C.Y.             2.50         56,000                0
                         Tot. Embankment             51,600         C.Y.             7.00        361,200                0
                         Riprap                       3,350         C.Y.           103.00        345,050                0
                         Seed & Sod                  13,000         S.Y.             0.45           5,850               0
                         Clearing                          -        JOB              L.S.         10,000                0
                         Closure Structure                 -        JOB              L.S.        170,000                0

                      Floodwall (12,080 FT.)
                         Concrete                    16,800         C.Y.           200.00     3,360,000                 0
                         Steel                     1,929,300          LB.            0.50        964P650                0
                         Fill                        32,400         C.Y.             3.00         97,200                0
                         Seed & Sod                  262,400        S.Y.             0.45        118,080                0
                         Exravation                  31,400         C.Y.             120          69,080                0
                         Stripping                   129700         C.Y.             2.50         31,750                0
                         Clearing                          -        JOB              L.S.         10,000                0
                         Closure Structure                                              -               -               -
                             Sub-total                                                        5,615,860                 0
                         Contingencies                                               30%      1,685,140                 0
                             Sub-total                                                        7p301,000                 0
                         E&D                                                         15%      1,095,150                 0
                         S&A                                                           5%        3659050                0
                             Sub-total                                                        $8,761,200         $359p4OO

                      Total Cost               (April 1980)                                          $9,120t600

                      AC - acre
                      C.Y. - cubic yard
                      LB. - pounds
                      S.Y. - square yard
                      L.S. - lump sum

                                                                    E-34

                                                             TABLE E-6

                                                  CAMBRIDGE COST SUMMARY
                                                  FOR STRUCTURAL PLAN CA-5
                                               (500-Year Event, 11 Foot Elevation)
                                                        - April 1980 Costs -

                  DESCRIPTION               QUANTITY           UNIT UNIT COST                         COST
                                                                                           FEDERAL         NON-FED

                  Lands
                    Levee                            0.6          AC       $ 20,000         $      0       $ 12,000
                    Wall                             6.8          AC          25,000               0         170,000
                          Sub-total                                                                0         182,000
                    Contingencies                                                20%               0           36,400

                  Relocations (None)

                  Levee (1,720 FT.)
                    Stripping                     3,100         C.Y.             2.50          7,750                0
                    Trenching                     10,900        C.Y.             2.50        27,250                 0
                    Tot. Embankment               23,700        C.Y.             7.00       165,900                 0
                    Riprap                        1,700         C.Y.          103.00        175,100                 0
                    Seed & Sod                    6,000         S.Y.             0.45          2,700                0
                    Clearing                           -        JOB              L.S.        10,000                 0
                    Closure Structure                  -        JOB              L.S.       1609000                 0

                  Floodwall (9,820 FT.)
                    Concrete                      13,800        C.Y.          200.00      2,7609000                 0
                    Steel                      1,5789100          I.B.           0.50       789PO50                 0
                    Fill                          26,400        C.Y.             3.00        79,200                 0
                    Seed & Sod                   214,000        S.Y.             0.45        961300                 0
                    Excavation                    25,600        C.Y.             2.20        569320                 0
                    Stripping                     109400        C.Y.             2.50        26,000                 0
                    Clearing                           -        JOB              L.S.        10,000                 0
                    Closure Structure                                               -              -                -
                          Sub-total                                                       4,365p570                 0
                    Contingencies                                                30%      1,3099430                 0
                          Sub-total                                                       5,675,000                 0
                    E&D                                                          15%        8512250                 0
                    S&A                                                            5%       283p750                 0
                          Sub-total                                                      @6p8l%000         @218t4OO

                  Total Cost               (April 1980)                                          $ 7,028,400

                  AC - acre
                  C.Y. - cubic yard
                  LB. - pounds
                  S.Y. - square yard
                  L.S. - lump sum

                                                                E-35

                                                                    TABLE E-7

                                                        CAMBRIDGE COST SUMMARY
                                                        FOR STRUCTURAL PLAN CA-6
                                                      (500-Year Event, 11 Foot Elevation)
                                                                 April 1980 Costs -

                       DESCRIPTION                QUANTITY             UNIT UNIT COST                          COST
                                                                                                    FEDERAL          NON-FED

                       Lands
                         Levee                              0.2          AC          $20,000          $       0       $ 4,000
                         Wall                               6.6          AC            25,000                 0        165,000
                               Sub-total                                                                      0        169,000
                         Contingencies                                                   20%                  0         33,800

                       Relocations (None)

                       Levee (210 FT.)
                         Stripping                          250        C.Y.              2.50               625               0
                         Trenching                       1,300         C.Y.              2.50             3,250               0
                         Tot. Embankment                 29050         C. Y.             7.00          14@350                 0
                         Riprap                              -         C.Y.                 -                -                -
                         Seed & Sod                         600        S.Y.                               1,000               0
                         Clearing                            -                                               -                -
                         Closure Structure                   -                                               -                -

                       Floodwall (9,630 FT.)
                         Concrete                      13,500          'C. Y.          200.00       2,700,000                 0
                         Steel                       1,547,400           LB.             0.50         773,700                 0
                         Fill                          25,950          C.Y.              3.00          77,850                 0
                         Seed & Sod                    209,800         S.Y.              0.45          94,410                 0
                         Excavation                    25,050          C.Y.              2.20          559110                 0
                         Stripping                     10,200          C.Y.              2.50          25,500                 0
                         Clearing *                                    JOB               L.S.          109000                 0
                         Closure Structure                                                  -                -                -
                               Sub-total                                                            3,755,795                 0
                         Contingencies                                                   30%        1,126,205                 0
                               Sub-total                                                            4,882,000                 0
                         E&D                                                             15%          732,300                 0
                         S&A                                                               5%         244,100                 0
                               Sub-total                                                           $59858,400        $2029800

                       Total Cost                (April 1980)                                             $ 69061,200

                       AC - acre
                       C.Y. - cubic yard
                       LB. - pounds
                       S.Y. - square yard
                       L.S. - lump sum

                                                                       E-36

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                                                                       9-9 919VI

                                                                TABLE E-9

                                                 CAMBRIDGE COST SUMMARY FOR
                                                    NONSTRUCTURAL PLAN CA-&
                                                            (120-Year Event)
                                                             April 1980 Costs -

                     DESCRIPTION                                                                      COST

                     Residential

                        Utility Additions
                             7 Units                                                                $51,800
                        R a i s i'n--g
                             0 Homes 11-411                                                                0
                             0 Homes 2'-811                                                                0
                             -T Homes 41-0"                                                                0
                        RelcZa-tions,
                             0 Homes                                                                       0
                             -07 Trailers                                                                  0
                        Acq%Tis-ition & Demolition
                             4 Homes                                                                158800
                                                                                   Sub-total
                                                                    Contingencies (d 20%             429100
                                                                                                    25297OU
                                                                          E&D,S&A @ 1%                 29500
                                                                                       Total     $  2551260-

                     Commercial

                        Acquisition & Demolition
                             0 Structures                                                                  0
                        Raisivn-g
                             0 Structures 11-4"                                                            0
                             -T Structures 21-811                                                          0
                             0 Structures 41-011                                                           0
                        RelcF-a-tions
                             0 Structures                                                                  0
                        Flo6-dproofing
                             10 Structures                                                          160,680
                        Flood-wall
                             1,1101 Length for 5 Structures                                         155,950
                                                                                   Sub-total        316, 30
                                                                    Contingencies @ 30%              95,000
                                                                                                    411,6K
                                                                               E&D @ 15%             61,725
                                                                                S&A @ 5%             20,575
                                                                                       Total        493,930
                     Total Cost (April 1980)                                                       $749,100

                                                                  E- 38

                                                                        TABLE E-In

                                                    CAMBRIDGE FLOOD CONTROL ALTERNATIVES:
                                                    ESTIMATES OF ANNUAL EQUIVALENT CHARGES
                                                                    - April 1980 Costs -

                                                       Interest and
                                                      Amortization        Interest &        Operation &               Total Annual
                       Plan           First Cost         Fartor*         Amortization     Maintenance Costs        Equivalent Charges

                       CA-1          $7,588,nnn          n.n7132           $541.2no               $46,600                 $5879800
                       CA-2          5,869,2nn           M7132             418)600                 36,100                  454,700
                       C -3          5,156,4no           n.n7132           3679800                 31,800                  399,600
                       CA-4          9912no6nO           n.n7132           650,500                 56,200                  706,700
                       CA-5          7,n2g,4nn           M7132             50IY300                 43,700                  545,000
                       CA-6          6,n6l,2nO           n.n7132           432,300                 37,600                  4691900
                       CA-7             366,3nn          0.07361             26,7on                      0                   26,700
               u',     CA-8         $ 749915n            M7361            $ 55,15n                $      0               $ 559150
               k-0
                       * The Interest and Amortization Factor is based on an economic life of    100 years for structural projects
                       Onyears for nonstrurtural projects) and a Federal interest rate of 7 1/8 percent (FY 1980).

                          Estimates of operation and maintenance costs were based on one percent of the construction costs.

                     CRISFIELD

                     Six alternative tidal flood protection plans were developed for the community of
                     Crisfield, Maryland. Four structural plans and two nonstructural plans were analyzed.
                     Each of the four structural plans included levee and floodwall protection with estimated
                     costs ranging between $5.8 million and $7.3 million based on April 1980 price levels.
                     Structural plans CR-1 and CR-3 were designed to protect against the 80-year flood event
                     through levee and floodwall construction to a top elevation of eight feet. The main
                     difference between these two plans was related to the length of the levees and floodwalls
                     considered. Cost estimates for these two plans are presented in Table E-I I and E-13.
                     Structural plans CR-2 and CR-4 also consisted of levees and floodwalls. Aside from the
                     lengths considered, these plans differed from CR-1 and CR-3 in that the top elevation
                     was increased by one foot. This one foot increment, however, was determined to protect
                     against the 400-year tidal flood event. These two plans were the most expensive of the
                     six plans evaluated as indicated by the cost estimates in Tables E-12 and E-14.
                     Nonstructural plan CR-5, through I utility room addition, 3 relocations and I demolition,
                     would protect the residential areas against the 12-year flood event. Protection of
                     commercial property to the same degree was based on demolition of 2 structures, a rais-
                     ing of 2 structures, floodproofing of 12 structures and construction of a floodwall to
                     protect 7 more structures. Estimates of the cost of CR-5 are provided in Table E-15.

                     Table E-16 presents cost information on nonstructural plan CR-6. Elements of residen-
                     tial protection in this plan included addition of 24 utility rooms, 17 relocations and 20
                     demolitions. The commercial portion of this plan included demolition of 41 structures,
                     raising of 6 structures, floodproofing 61 structures and floodwall construction totalling
                     almost 8,900 feet in length. This nonstructural plan was determined to protect against
                     the 80-year tidal flood at an estimated cost of almost $6.3 million. Annual equivalent
                     charges for all of the above plans are presented in Table E-17.

                                                                 E- 40

                                                            TABLE I-- I I

                                                CRISFIELD COST SUMMARY FOR
                                                    STRUCTURAL PLAN CR-1
                                                 (80-Year Event, 8 Foot Elevation)
                                                        - April 1980 Costs -

                 DESCRIPTION                QUANTITY          UNIT UNIT COST                         COST
                                                                                          FEDERAL          NON-FED

                 Lands
                    Levee                           13.8          AC        $ 15,000         $     0       $207,000
                    Wall                             4.6          AC           25,000              0         115,000
                         Sub-total                                                                 0         322,000
                    Contingencies                                               20%                0          64,400

                 Relocations (None)

                 Levee (15,340 FT.)
                    Stripping                    20,000         C.Y.            2.50         50,000                0
                    Trenching                    97,100         C.Y.            2.50        242,750                0
                    Tot. Embankment             154,000         C.Y.            7.00      1,078,000                0
                    Riprap                           -          C.Y.                -              -
                    Seed & Sod                   44,400         S.Y.            0.45         19,980                0
                    Clearing                         -          JOB             L.S.         20,000                0
                    Closure Structure                -          JOB             L.S.        223,000                0

                 Floodwall (7,280 FT.)
                    Concrete                       7,900        C.Y.           200.00     1,580,000                0
                    Steel                       899,800          LB.            0.50        4491900                0
                    Fill                         17,500         C.Y.            3.00         52,500                0
                    Seed & Sod                  139,400         S. Y.           0.45         62,730                0
                    Excavation                  168,200         C.Y.            2.20        370,040                0
                    Stripping                      6,600        C.Y.            2.50         161500                .0
                    Clearing                         -          JOB             L.S.         10,000                0
                    Closure Structure                           JOB             L.S.         76,000                0
                         Sub-total                                                        4y2511400                0
                    Contingencies                                               30%       1,275,600                0
                         Sub-total                                                        5,527,000                0
                    E&D                                                         15%         829,00                 0
                    S&A                                                           5%        276,350                0
                         Sub-total                                                       @6Y632Y400         >396,400

                 Total Cost               (April 1980)                                          $7,018,800

                 AC - acre
                 C.Y. - cubic yard
                 LB. - pounds
                 S.Y. - square yard
                 L.S. - lump sum

                                                                E-41

                                                                        TABLE E-12

                                                           CRISFIELD COST SUMMARY FOR
                                                               STRUCTURAL PLAN CR-2
                                                           (400--wYear Event, 9 Foot Elevation)
                                                                     April 1980 Costs -

                        DESCRIPTION                  QUANTITY               UNIT UNIT COST                           COST
                                                                                                          FEDERAL            NON-FED

                        Lands
                           Levee                               16.4           AC        $ 15,000           $       0       $ 246,000
                           Wall                                 4.8           AC             25,000                0           120,000
                                Sub-total                                                                          0           366,000
                           Contingencies                                                      20%                  0            73,200

                        Relocations; (None)

                        Levee (16,055 FT.)
                           Stripping                       24,000           C.Y.              2.50           60,000                   0
                           Trenching                       101,600          C.Y.              2.50         254,000                    0
                           Tot. Embankment                 181,100          C.Y.              7.00       1,267,700                    0
                           Riprap                               -           C.Y.                  -                -                  -
                           Seed & Sod                      51,300           S.Y.              0.45           23,085                   0
                           Clearing                             -           JOB               L.S.           20,000                   0
                           Closure Structure                    -           JOB               L.S.         283,000                    0

                        Floodwall (7,280 FT)
                           Concrete                          8,700          C. Y.           200.00       1,740,000                    0
                           Steel                           991,900           I.B.             0.50         495,950                    0
                           Fill                            18,200           C. Y.             3.00           54,600                   0
                           Seed & Sod                      145,000          S.Y.              0.45           65,250                   0
                           Excavation                      17,500           C. Y.             2.20           38,500                   0
                           Stripping                         7,000          C.Y.              2.50           17,500                   0
                           Clearing                             -           JOB               L.S.           10,000                   0
                           Closure Structure                                JOB               L.S.           90,000                   0
                                Sub-total                                                                4,419,585                    0
                           Contingencies                                                      30%        1,325,415                    0
                                Sub-total                                                                5,745,000                    0
                           E&D                                                                15%          861,750                    0
                           S&A                                                                  5%         287,250                    0
                                Sub-total                                                               $6,894,000           $439,200

                        Total Cost                  (April 1980)                                                $7,333,200

                        AC - acre
                        C.Y. - cubic yard
                        I.B. - pounds
                        S.Y. - square yard
                        L.S. - lump sum

                                                                         E-42

                                                            TABLE E-13

                                                CRISFIELD COST SUMMARY FOR
                                                    STRUCTURAL PLAN CR-3
                                                 (80-Year Event, 8 Foot Elevation)
                                                          April 1980 Costs -

                  DESCRIPTION               QUANTITY           UNIT UNIT COST                         COST
                                                                                           FEDERAL         NON-FED

                  Lands
                    Levee                           13.6          AC        $ 15,000        $      0       $204,000
                    Wall                             3.9          AC           25,000              0          97,500
                         Sub-total                                                                 0         301,500
                    Contingencies                                               20%                0          60,300

                  Relocations (None)

                  Levee (14,820 FT.)
                    Stripping                    19,500         C.Y.            2.50         48,750                0
                    Trenching                    93,800         C.Y.            2.50        234,500                0
                    Tot. Embankment             149,900         C.Y.            7.00      1,049,300                0
                    Riprap                                      C.Y.                -              -               -
                    Seed & Sod                   43,300         S.Y.            0.45         .19,485               0
                    Clearing                           -        JOB             L.S.         20,000                0
                    Closure Structure                 -         JOB             L.S.        193,000                0

                  Floodwall (6,110 FT.)
                    Concrete                       6,600        C.Y.           200.00     1,320,000                0
                    Steel                       755,200          LB.            0.50        3771600                0
                    Fill                         14,700         C.Y.            3.00         44,100                0
                    Seed & Sod                  117,000         S.Y.            0.45         52,650                0
                    Excavation                   14,100         C.Y.            2.20         31,020                0
                    Stripping                      5P600        C.Y.            2.50         14,000                0
                    Clearing                                    JOB             L.S.         10,000                0
                    Closure Structure                           JOB             L.S.         76,000                0
                         Sub-total                                                        3,490,405                0
                    Contingencies                                               30%       1,047,595                0
                         Sub-total                                                        4,538,000                0
                    E&D                                                         15%         680,700                0
                    S&A                                                           5%        226,900                0
                         Sub-total                                                       $5,445,600         $361,800

                  Total Cost               (April 1980)                                            $5,807,400

                  AC - acre
                  C.Y. - cubic yard
                  LB. - pounds
                  S.Y. - square yard
                  L.S. - lump sum

                                                                E-43

                                                                 TABLE E-14

                                                     CRISFIELD COST SUMMARY FOR
                                                         STRUCTURAL PLAN CR-4
                                                     (400-Year Event, 9 Foot Elevation)
                                                               April 1980 Costs -

                      DESCRIPTION                QUANTITY           UNIT UNIT COST                         COST
                                                                                                FEDERAL         NON-FED

                      Lands
                         Levee                           15.9          AC        $ 15p000        $      0       $238,500
                         Wall                             4.0          AC           25,000              0          100,000
                              Sub-total                                                                 0         338,500
                         Contingencies                                               20%                0           67,700

                      Relocations (None)

                      Levee (15,535 FT.)
                         Stripping                   23,400         C.Y.             2.50         58,500                0
                         Trenching                   98,300         C.Y.             2.50        245,750                0
                         Tot. Embankment            176,500         C.Y.             7.00      1,235,500                0
                         Riprap                           -         C.Y.                 -              -                -
                         Seed & Sod                  50,000         S.Y.             0.45         22,500                0
                         Clearing                         -         JOB              L.S.         20,000                0
                         Closure Structure                -         JOB              L.S.        245,000                0

                      Floodwall (6, 110 FT.)
                         Concrete                      7,300        C.Y.           200.00      1,460,000                0
                         Steel                      8329500           LB.            0.50        416t250                0
                         Fill                       152,800         C.Y.             3.00        458,400                0
                         Seed & Sod                 122,500         S.Y.             0.45         55,125                0
                         Excavation                  14,700         C.Y.             2.20         32t340                0
                         Stripping                     5,900        C.Y.             2.50         14,750                0
                         Clearing                         -         JOB              L.S.         10,000                0
                         Closure Structure                          JOB              L.S.         90,000                0
                              Sub-total                                                        4,364,115                0
                         Contingencies                                               30%       1,309,885                0
                              Sub-total                                                        5t674,000                0
                         E&D                                                         15%         851,100                0
                         S&A                                                           5%        283t7OO                0
                              Sub-total                                                       $6,808,800         $406,200

                      Total Cost               (April 1980)                                           $7,215,000

                      AC - acre
                      C.Y. - cubic yard
                      LB. - pounds
                      S.Y. - square yard
                      L.S. - lump sum

                                                                    E-44

                                                        TABLE E-15

                                            CRISFIELD COST SUMMARY FOR
                                              NONSTRUCTURAL PLAN CR-5
                                                      (12-Year Event)
                                                     -April 1980 Costs-

                 DESCRIPTION                                                                COST

                 Residential

                   Utility Additions
                        I Unit                                                             $7,400
                   Raising
                        0 Homes 1'4"                                                            0
                        _T Homes 218"                                                           0
                        T Homes 41011                                                           0
                   Rel6c-ations
                        0 Homes                                                                 0
                        _T Trailers                                                        36,000
                   Acqdlihion & Demolition
                        I Homes                                                            20,350
                                                                      Sub-total            63,750
                                                         Contingencies @d 20%              12 750

                                                              E&D,S&A (a 1%                   800
                                                                          Total            77,300

                 Commercial

                   Acquisition & Demolition
                        2 Structures                                                  $    58,850
                   Raising
                        0 Structures  11-411                                                    0
                        f-Structures  21-811                                               21,600
                        _T Structures 41-011                                                    0
                   Relo7c-ations
                        0 Structures                                                            0
                   Floodproofing
                        12 Structures                                                      981540
                   Floodwall
                        2,0501 Length for 7 Structures                                   205,000
                                                                      Sub-total          3832990
                                                         Contingencies (d 30%            1152200
                                                                                         499@200
                                                                  E&D @ 15%                74,850
                                                                   S&A @d 5%               242950
                                                                          Total          599,000

                 Total Cost (April 1980)                                                 @676,300

                                                           E-45

                                                                TABLE E-16

                                                    CRISFIELD COST SUMMARY FOR
                                                     NONSTRUCTURAL PLAN CR-6
                                                              (80-Year Event)
                                                            - April 1980 Costs -

                     DESCRIPTION                                                                        COST

                     Residential

                        Utility Additions
                              24 Units                                                               $1779600
                        Raising
                              0  Homes 11-4"                                                                0
                              0  Homes 2'-811                                                               0
                                 Homes 41-011                                                               0
                        Rel6ir-ations,
                              0 Homes                                                                       0
                              TT Trailers                                                            204,000
                        Acquisition & Demolition
                              20 Homes                                                               481,100
                                                                                Sub-total            8629700
                                                                 Contingencies (gl 20%               1729500
                                                                                                   1,035,200
                                                                       E&D,S&A (OL 1%                  10,350
                                                                                    Total          1,045,550

                     Commercial

                        Acquisition & Demolition
                              41 Structures                                                       $1,792,750
                        Raising
                              6  Structures  11-411                                                    58,800
                              T_ Structures 21-811                                                          0
                              07 Structures  41-011                                                         0
                        RelcZa-tions
                              0 Structures                                                                  0
                        FlooUproofing
                              61 Structures                                                          433,240
                        Floodwall
                              8,8751 Length for 36 Structures                                      1@081,750
                                                                               Sub-total           3,366,540
                                                                 Contingencies (Ld 30%             1,010,000
                                                                                                   4,376,540
                                                                           E&D Cd 15%                656,500
                                                                             S&A (a 5%               2182800
                                                                                    Total          5,251,800

                     Total Cost (April 1980)                                                      $6,297,300

                                                                    E- 4 6

                                                                        TABLE E-17

                                                     CRISFIELD FLOOD CONTROL ALTERNATIVES:
                                                   ESTIMATES OF ANNUAL EQUIVALENT CHARGES
                                                                    - April 1980 Costs -

                                                      Interest &
                                                     Amortization       Interest          Operation                   Total Annual
                     Plan           First Cost         Fartor*        Amortization       Maintenance Costs         Equivalent Charges
                     CR- I         $7,W8,8nn         m7132              $500,600                 $42,500                 $543tI00
                     CR-2           7,333,2no        0.07132              523pnoo                 44,200                   567$200
                     CR-3           5,807,00         0.07132              414$200                 34v9OO                   4491100
                     CR-4           7,215,nnn        GA7132               514f600                 431600                  .558,200
                     CR-5             67613nO        0.07361               49,8()0                      0                   49,800
                     CR-6          $6,297,3nn        0.07361            $463,5nO                 $      0                $463,500
            X:b
                       The Interest and Amortization Factor is based on an economic life of 100 years for structural projects      50
                     years for nonstrurtural projerts) and a Federal Interest rate of 7 1/8 percent (FY 1980).

                        Estimates of operation and maintenance costs were based on one percent of the construction costs.

                     POCOMOKE CITY

                     Tidal flood protection plans developed for Pocomoke City consisted of two structural
                     plans and three nonstructural plans. Both structural plans PC-1 and PC-2 included levee
                     and floodwall construction. The length of floodwall constructed in both plans was the
                     same (5,630 feet) while plan PC-2 included 310 feet more levee construction than PC-I.
                     Structural Plan PC-1 was based on a top elevation of 9 feet which would protect against
                     the estimated 70-year tidal flood event. Costs of this plan based on April 1980 dollars
                     were approximately $3.5 million as shown in Table E-18. Plan PC-2 not only included
                     increased levee construction but also was designed to a top elevation of I I feet. This
                     plan was estimated to protect against events approximati$n the 500-year tidal flood.
                     Costs of this plan, as shown in Table E-19, approximated U million at 1980 price
                     levels.

                     The nonstructural plant for Pocomoke City were based on making changes to residential
                     and commercial structures in the flood plain. Nonstructural Plan PC-3 included utility
                     room additions to three residences as well as acquisition and demolition of one home.
                     Acquisition and demolition of one commerical structure and construction of 6 10 feet of
                     floodwall to protect two structures completed this plan. This plan, estimated to cost
                     approximately $0.26 million, as shown in Table E-20, would protect against the 25-year
                     tidal flood. Nonstructural Plan PC-4, again, was based on alterations to the residential
                     and commercial sectors. A total of seven utility room additions, one house raising, one
                     relocation, and demolition of two homes accounted for approximately 33 percent of the
                     plan cost. The remaining 67 percent of the plan cost reflects the cost of demolishing one
                     commercial structure, f loodproofing two structures and f loodwall construction of 2,4 10
                     feet. Total construction cost of this plan as shown in Table E-21 was estimated to be
                     $0.73 million and reflects a level of protection approximating the 70-year flood event.
                     Nonstructural Plan PC-5 was designed to protect against the estimated 220-year flood
                     event. The increased protection results from a substantial effort in the residential
                     sector. Because of increased utility additions, raisings, and demolitions, costs of
                     residential protection almost tripled those of PC-4. Total costs of this plan were
                     estimated to be $1.36 million at April 1980 levels as reflected in Table E-22. Table E-23
                     summarizes the annual equivalent costs associated with the plans for Pocomoke City.

                                                               E-48

                                                               TABLE E-18

                                              POCOMOKE CITY COST SUMMARY FOR
                                                      STRUCTURAL PLAN PC-1
                                                   (70-Year Event, 9 Foot Elevation)
                                                             April 1980 Costs -

                  DESCRIPTION                 QUANTITY           UNIT UNIT COST                            COST
                                                                                               FEDERAL          NON-FED

                  Lands
                     Levee                              3.9         AC           10,000         $      0         $39,000
                     Wall                               3.6         AC           12,000                0           43,200
                          Sub-total                                                                    0           82,200
                     Contingencies                                                  20%                0           169440

                  Relocations (None)

                  Levee (4,560 FT.)
                     Stripping                       5,700          C.Y.            2.50         141250                  0
                     Trenching                     28,800           C.Y.            2.50         72,000                  0
                     Tot. Embankment               43,900           C.Y.            7.00        307,300                  0
                     Riprap                                         C. Y.              -               -                 -
                     Seed & Sod                    12,700           S.Y.            0.45           5,715                 0
                     Clearing                            -          JOB             L.S.         20,000                  0
                     Closure Structure                   -          JOB             L.S.         70,000                  0

                  Floodwall (5,630 FT.)
                     Concrete                        6,080          C. Y.        200.00        1,216,000                 0
                     Steel                        695,900           LB.             0.50        347,950                  0
                     Fill                          13,500           C.Y.            3.00         40,500                  0
                     Seed & Sod                    107,800          S.Y.            0.45         48,510                  0
                     Excavation                    13,000           C.Y.            2.50         32,500                  0
                     Stripping                       5,100          C.Y.            2.50         12,750                  0
                     Clearing                            -          JOB             L.S.         20,000                  0
                     Closure Structure                                                 -               -                 -
                          Sub-total                                                            2,207,475                 0
                     Contingencies                                                  30%         662,525                  0
                          Sub-total                                                            2t870,000                 0
                     E&D                                                            15%         430,500                  0
                     S&A                                                              5%        143t5OO                  0
                          Sub-total                                                          @3,444,000           @981640

                  Total Cost                (April 1980)                                               $3,542,600

                  AC - acre
                  C.Y. - cubic yard
                  LB. - pound
                  S.Y. - square yard
                  L.S. - lump sum

                                                                    E-49

                                                                TABLE E-19

                                                POCOMOKE CITY COST SUMMARY FOR
                                                        STRUCTURAL PLAN PC-2
                                                   (500-Year Event, 11 Foot Elevation)
                                                              April 1980 Costs -

                      DESCRIPTION              qUANTITY             UNIT UNIT COST                      COST
                                                                                              FEDERAL          NON-FED

                      Lands
                        Levee                          5.25           AC         $10,000         $     0         $52,500
                        Wall                          3.8             AC           12,000              0          45,600
                             Sub-total                                                                 0          98,100
                        Contingencies                                               20%                0          19,620

                      Relocations (None)

                      Levee (4,870 FT.)
                        Stripping                    7,870          C.Y.            2.50         19,675                0
                        Trenching                  30v770           C.Y.            2.50         769925                0
                        Tot. Embankment            59,405           C.Y.            7.00         415,835               0
                        Riprap                          -           C.Y.               -               -               -
                        Seed & Sod                 16,590           S.Y.            0.45           7,466               0
                        Clearing                        -           JOB             L.S.         20,000                0
                        Closure Structure                           JOB             L.S.         110,000               0

                      Floodwall (5,630 FT.)
                        Concrete                     7v3OO          C.Y.          200.00      1,460,000                0
                        Steel                      838,300           LB.            0.50         419,150               0
                        Fill                       14,600           C.Y.            3.00         43,800                0
                        Seed & Sod                 117,900          S.Y.            0.45         53,055                0
                        Excavation                 14,100           C.Y.            2.50         35,250                0
                        Stripping                    59700          C.Y.            2.50         14,250                0
                        Clearing                        -           JOB             L.S.         20,000                0
                        Closure Structure                                              -              -                -
                             Sub-total                                                        2v695,406                0
                        Contingencies                                               30%          808,594               U
                             Sub-total                                                        3,504,000                0
                        E&D                                                         15%          525,750               0
                        S&A                                                           5%         175,250               0
                             Sub-total                                                       $4,2059000        $117,720

                      Total Cost             (April 1980)                                           $ 4,322v7OO

                      AC - acre
                      C.Y. - cubic yard
                      LB. - pound
                      S.Y. - square yard
                      L.S. - lump sum

                                                                    E-50

                                                         TABLE E-20

                                         POCOMOKE CITY COST SUMMARY FOR
                                               NONSTRUCTURAL PLAN PC-3
                                                       (25-Year Event)
                                                     - April 1980 Costs -

                DESCRIPTION                                                                      COST

                Residential

                   Utility Additions
                         3 Units                                                            $ 22,200
                   Raising
                         0 Homes 11-411                                                             0
                         6- Homes 21-811                                                            0
                           Homes 41-011                                                             0
                   Rel6c-ations
                         0 Homes                                                                    0
                           Trailers                                                                 0
                   AcqdIs-ition & Demolition
                         I Home                                                                35000
                                                                        Sub-total
                                                          Contingencies @ 20%                  111400
                                                                                               68,600
                                                               B&D, S&A Ld 1%                      700
                                                                            Total              69,300

                Commercial

                   Acquisition & Demolition
                         -I Structure                                                       $ 61,100
                   Raising
                         0 Structures 11-411                                                        0
                         _T Structures 21-811                                                       0
                         T Structures 41-011                                                        0
                   Rel6c-ations
                         0 Structures                                                               0
                   Floodproofing
                         0 Structures                                                               0
                   Flooj"w-all
                         610' Length for 2 Structures                                          619000
                                                                        Sub-total              122,100
                                                          Contingencies @Ld 30%                36 600

                                                                    E&D (d 15%                 23,800
                                                                      S&A      5%                7,900
                                                                           @91
                                                                            Total          $ 190,400

                Total Cost (April 1980)                                                      $259,700

                                                             E- 51

                                                                TABLE E-21

                                               POCOMOKE CITY COST SUMMARY FOR
                                                     NONSTRUCTURAL PLAN PC-4
                                                              (70-Year Event)
                                                            -April 1980 Costs-

                      DESCRIPTION                                                                      COST

                      Residential

                        Utility Additions
                              7 Units                                                               $ 51,800
                        Raising
                              I Home 11-411                                                              9,800
                              F Homes 21-811                                                                  0
                              _T Homes 410"                                                                   0
                        Rel6c-ations
                              0 Homes                                                                         0
                              I Trailer                                                                  6,000
                        AcqdWition & Demolition
                              2 Homes                                                                  80,000
                                                                               Sub-total              147,600
                                                                 Contingencies (d 20%                  299500
                                                                                                      177VIG-0
                                                                      E&D, S&A (d 1%                     19800
                                                                                   Total           $  1789900

                      Commercial

                        Acquisition & Demolition
                              I Structure                                                           $ 619100
                        Raising
                              0 Structures 11-411                                                             0
                              IT Structures 21-811                                                            0
                              0 Structures 41-011                                                             0
                        Rel6c-ations
                              0 Structures                                                                    0
                        Floojp-roofing
                              2 Structures                                                             33,700
                        Flooa"w-all
                              2,4101 Length for 3 Structures                                          2579500
                                                                               Sub-total              35223
                                                                 Contingencies Cd 30%                 105,700
                                                                                                      458,000
                                                                           E&D @ 15%                   689700
                                                                             S&A Cd 5%                 22,900
                                                                                    Total          $  549,600
                      Total Cost (April 1980)                                                        $728,500

                                                                    E-52

                                                          TABLE E-22

                                          POCOMOKE CITY COST SUMMARY FOa
                                               NONSTRUCTURAL PLAN PC-5
                                                       (220-Year Event)
                                                      - April 1980 Costs -

                 DESCRIPTION                                                                    COST

                 Residential

                 Utility Additions
                         16 Units                                                          $ 118,400
                   Raising
                         5 Homes    11-411                                                      51,200
                         1 Homes 2@411                                                          10,800
                         F Homes 41-011                                                              0
                   Rel6c-ations
                         0 Homes                                                                     0
                         1 Trailer                                                              6,000
                   AcqtTis-ition & Demolition
                         6 Homes                                                              2249700
                                                                         Sub-total            411,100
                                                           Contingencies (d 20%                 82 200

                                                                E&D, S&A Ld 1%                  49900
                                                                             Total            498,200

                 COMMERCIAL

                   Acquisitions & Demolition                                                    -
                         ':' 2 Structures                                                       87,200
                   Raising
                         I Structures  11-411                                                   7,700
                         _T Structures 21-811                                                        0
                         T Structures 41-011                                                         0
                   Rel6c-ations
                         0 Structures                                                                0
                   Floo3p-roof ing
                         5 Structures                                                           58;000
                   Floo'dw-all
                         2,4101 Length for 3 Structures                                       397,700
                                                                         Sub-total            550,600
                                                           Contingencies Cd 30%               1659200
                                                                                              715,800
                                                                     E&D (d 15%               107,400
                                                                      S&A @ 5%                  35,800
                                                                             Total         $  859,000

                 Total Cost (April 1980)                                                    $1,357,200

                                                             E-53

                                                                          TABLE E-23

                                                   POCOMOKE CITY FLOOD CONTROL ALTERNATIVES:
                                                     ESTIMATES OF ANNUAL EQUIVALENT CHARGES
                                                                      - April 1980 Costs -

                                                         Interest &
                                                       Amortization         Interest           Operation &                   Total Annual
                      Plan            First Cost           Factor          Amortization      Maintenance Costs           Equivalent Charges
                      PC-I          $3,542,600           0.0713 2           $252,700               $ 22PI00                    $274,800
                      PC-2           49322,700           0.07132              308,300                  27,000                    335,300
                      PC-3             259,700           0.07361                19,100                     0                      19,100
                      PC-4             728,500           0.07361               53P600                      0                      53P60U
                      PC-5         $  11357,200          0.07361            $  99P900              $       0                   $  99,900

                        The Interest and Amortization Factor is based on an economic life of 100 years for structural projects (50
                      years for nonstructural projects) and a Federal interest rate of 7 1/8 percent (FY 1980).

                          Estimates of operation and maintenance costs were based on one percent of the construction costs.

                ROCK HALL

                During the investigation of tidal flooding problems in the community of Rock Hall, ten
                alternative flood protection plans were developed. Six of these plans were structural in
                design including both levee and floodwall construction. Structural Plans RH-I and RH-2
                both included 9,575 feet of floodwall construction while Plan RH-2 included an additional
                3,100 feet of levee construction. Furthermore, Plan RH-2 had a top elevation of 15 feet
                - 3 feet more than Plan RH-I. These design differences translated into the following:
                Plan RH-1 was delned to provide protection against the 140-year tidal floot event at an
                April 1980 cost of   9. 45 million while Plan RH-2 was designed to protect against an
                event approximating the 500-year occurrence at an estimated cost of $13.51 million.
                Plan cost information is presented in Tables E-24 and E-25.

                Structural Plans RH-3 and RH-4 also provided protection against the 140-year event and
                the approximate 500-year event, respectively. Both of these plans included for 7,370
                feet of floodwall construction and 8,660 feet of levee construction. At an April 1980
                estimated cost of $10.31 million, Structural Plan RH-4 exceeded the cost of Structural
                Plan RH-3 by more than $2.3 million. The major reason for this is that Plan RH-4, at 15
                feet top elevation, is 3 feet greater in height than Plan RH-3. Itemized costs of these
                two plans are presented in Tables E-26 and E-27.

                Of the six structural plans, Plans RH-5 and RH-6 are the least expensive. Designed to
                protect against the 140-year tidal flood event, Plan RH-5 is based on 2,205 feet of
                floodwall construction and 7,700 feet of levee construction for an April 1980 estimated
                cost of $3.29 million. Plan RH-6, which was designed to protect against tidal floods
                approximating the 500-year event, also includes 2,205 feet of floodwall construction plus
                9,450 feet of levee construction. However, with a top elevation of 15 feet, Plan RH-6,
                at $4.8 million in April 1980 dollars, costs $1.5 million more than Plan RH-5. Tables E-
                28 and E-29 present estimated costs for Structural Plans RH-5 and RH-6, respectively.

                Four nonstructural plans were also developed for Rock Hall. Nonstructural Plan RH-7 is
                the least expensive and provides the least amount of protection. In terms of residential
                and commercial impact, this plan was determined to require 7 structure relocations,
                floodproofing of 6 structures, acquisition and demolition of 4 homes, and 2,900 feet of
                floodwall construction to provide protection against the 15-year event. Plan costs, in
                April 1980 dollars, were estimated to be $1.09 million as shown in Table E-30.
                Nonstructural Plan RH-8 was designed to protect against the 25-year tidal event through
                residential and commercial relocations, raisings, acquisition and demolition of 20
                structures and 3 500 feet of floodwall construction. Estimated April 1980 costs of Plan
                RH-8 are @2.5 million as itemized in Table E-31.

                Nonstructural Plan RH-9 provides protection against the 50-year tidal event at an
                estimated April 1980 cost of $4.86 million. This plan includes acquisition and demolition
                of 58 structures, relocation of 18 structures, floodproofing, house raisings, and floodwall
                construction in the amount of 3,500 feet. Costs of this plan are shown in Table E-32.
                Nonstructural Plan RH-10 provides protection against the 80-year tidal flood event.
                With regard to the commercial sector, the only difference between Plans RH-9 and RH-
                10 is the increased height of the floodwall design in Plan RH-10. To protect the
                residential sector against the 80-year event, additional raisings and relocations, and a
                significant number of acquisitions and demolitions would be necessary. Estimated costs
                of Plan RH-10 are $7.15 million and these costs are shown in Table E-33. Table E-34
                summarizes the annual costs of Plans RH-l through RH-10.

                                                            E-55

                                                                    TABLE E-24

                                                      ROCK HALL COST SUMMARY FOR
                                                           STRUCTURAL PLAN RH-1
                                                      (140-Year Event, 12 Foot Elevation)
                                                                  April 1980 Costs-

                       DESCRIPTION                QUANTITY             UNIT UNIT COST                         COST
                                                                                                   FEDERAL           NON-FED

                       Lands
                         Levee                             17.4          AC         $ 15,000         $      0        $261,000
                         Wall                               6.8          AC            20,000               0          136,000
                               Sub-total                                                                    0          397,000
                         Contingencies                                                   20%                0           79,400

                       Relocations (None)

                       Levee (12,840 FT.)
                         Stripping                     26,100          C.Y.              2.50         65,250                  0
                         Trenching                     81,300          C.Y.              2.50        203,250                  0
                         Tot. Embankment              200,900          C.Y.              7.00      1,406,300                  0
                         Riprap                             -          C. Y.                -               -                 -
                         Seed & Sod                    511400          S.Y.              0.45         23,130                  0
                         Clearing                           -          JOB               L.S.         15,000                  0
                         Closure Structure                  -          JOB               L.S.        160,000                  0

                       Floodwall (9,575 FT.)
                         Concrete                      14,000          C.Y.            200.00      2,800,000                  0
                         Steel                       1,603,500           LB.             0.50        801,750                  0
                         Fill                          25,900          C.Y.              3.00         77,700                  0
                         Seed & Sod                   213,200          S.Y.              0.45         95,940                  0
                         Excavation                    25,400          C.Y.              2.20         55,880                  0
                         Stripping                     10,400          C.Y.              2.50         26,000                  0
                         Clearing                           -                            L.S.         25,000                  0
                         Closure Structure                                                  -               -                 -
                               Sub-total                                                           5,755,200                  0
                         Contingencies                                                   30%       1,726,800                  0
                               Sub-total                                                           7,482,000                  0
                         E&D                                                             15%       191229300                  0
                         S&A                                                               5%        374,100                  0
                               Sub-total                                                          $8,978,400         $476,400
                       Total Cost                (April 1980)                                            $9,454,800

                       AC - acre
                       C.Y. - cubic yard
                       LB. - pound
                       S.Y. - square yard
                       L.S. - lump sum

                                                                       E-56

                                                               TABLE E-25

                                                    ROCK HALL COST SUMMARY
                                                   FOR STRUCTURAL PLAN RH-2
                                                  (500-Year Event, 15 Foot Elevation)
                                                           - April 1980 Costs-

                  DESCRIPTION                 QUANTITY           UNIT UNIT COST                             COST
                                                                                               FEDERAL           NON-FED

                  Lands
                     Levee                            26.3          AC         $ 15,000         $       0        $394,500
                     Wall                               7.4         AC             20,000               0         148,000
                          Sub-total                                                                     0         542,500
                     Contingencies                                                   20%                0         108,500

                  Relocations (None)

                  Levee (15,940 FT.)
                     Stripping                     40,200           C.Y.             2.50        100,500                  0
                     Trenching                    lootgoo           C.Y.             2.50        252,250                  0
                     Tot. Embankment              334,700           C. Y.            7.00      2,342,900                  0
                     Riprap                          59200          C.Y.            80.00        416,000                  0
                     Seed & Sod                    769300           S.Y.             0.45         34,335                  0
                     Clearing                            -          JOB              L.S.         20,000                  0
                     Closure Structure                   -          JOB              L.S.        344,000                  0

                  Floodwall (9,575 FT.)
                     Conrrete                      179200           C.Y.           200.00      3,440,000                  0
                     Steel                      1,966,900           LB.              0.50        983P450                  0
                     Fill                          29,200           C.Y.             3.00         Vt600                   0
                     Seed & Sod                   239,100           S.Y.             0.45        107t595                  0
                     Excavation                    28t300           C.Y.             2.20         62,260                  0
                     Stripping                     14800            C.Y.             2.50         299500                  0
                     Clearing                            -          JOB              L.S.         259000                  0
                     Closure Structure                                                  -               -                 -
                          Sub-total                                                            8,245,390                  0
                     Contingencies                                                   30%       2,473,610                  0
                          Sub-total                                                           10,719t000                  0
                     E&D                                                             15%       1,607,850                  0
                     S&A                                                               5%        535,950                  0
                          Sub-total                                                          $12,862,800          $651,000
                  Total Cost                 (April 1980)                                              $13,513,800

                  AC - acre
                  C.Y. - cubic yard
                  LB. - pound
                  S.Y. - square yard
                  L.S. - lump sum

                                                                    E-57

                                                                      TABLE E-26

                                                           ROCK HALL COST SUMMARY
                                                          FOR STRUCTURAL PLAN RH-3
                                                         (140- Year Event, 12 foot elevation)
                                                                  - April 1980 Costs -

                       DESCRIPTION                 QUANTITY             UNIT UNIT COST                         COST
                                                                                                    FEDERAL           NON-FED

                       Lands
                          Levee                             12.8          AC         $ 15,000        $       0       $ 192,000
                          Wall                               5.2          AC            20,000               0          104,000
                               Sub-total                                                                     0          296,000
                          Contingencies                                                   20%                0           592200

                       Relocations (None)

                       Levee (8,660 FT.)
                          Stripping                      19,300         C.Y.              2.50         48,250                 0
                          Trenching                      54,800         C.Y.              2.50        137,000                 0
                          Tot. Embankment               149,900         C. Y.             7.00     19049,300                  0
                          Riprap                         3,700          C.Y.             80.00        296,000                 0
                          Seed & Sod                     37,100         S.Y.              0.45         16,695                 0
                          Clearing                            -         JOB               L.S.         10,000                 0
                          Closure Structure                   -         JOB               L.S.        320,000                 0

                       Floodwall (7,370 FT.)
                          Concrete                       10,900         C.Y.            200.00     2,180,000                  0
                          Steel                       1,247,300           LB.             0.50        623,650                 0
                          Fill                           19,900         C.Y.              3.00         59,700                 0
                          Seed & Sod                    165,100         S.Y.              0.45         749295                 0
                          Excavation                     19,400         C.Y.              2.20         42,680                 0
                          Stripping                      8,000          C.Y.              2.50         20,000                 0
                          Clearing                            -         JOB               L.S.         20,000                 0
                          Closure Structure                                                  -               -                -
                               Sub-total                                                           49897,570                  0
                          Contingencies                                                   30%      1,469,430                  0
                               Sub-total                                                           6,367,000                  0
                          E&D                                                             15%         955,050                 0
                          S&A                                                               5%        318,350                 0
                               Sub-total                                                           $7,64Op4OO         $3559200

                       Total Cost                 (April 1980)                                              $7,995,600

                       AC - acre
                       C.Y. - cubic yard
                       LB.- pound
                       S.Y. - square yard
                       L.S. - lump sum

                                                                        E- 58

                                                               TABLE E-27

                                                    ROCK HALL COST SUMMARY
                                                   FOR STRUCTURAL PLAN RH-4
                                                  (500-Year Event, 15 Foot Elevation)
                                                          - April 1980 Costs -

                  DESCRIPTION                QUANTITY          UNIT UNIT COST                         COST
                                                                                            FEDERAL         NON-FED

                  Lands
                     Levee                           16.3         AC         $ 159000      $        0      $ 244t5OO
                     Wall                             5.7         AC            20tOOO              0          114,000
                          Sub-total                                                                 0         358,500
                     Contingencies                                                20%               0           71,700

                  Relocations (None)

                  Levee (8,660 FT.)
                     Stripping                    25,100          C.Y.            2.50        62,750                 0
                     Trenching                    54,800          C.Y.            2.50       137,000                 0
                     Tot. Embankment             216,000          C.Y.            7.00     1,512,000                 0
                     Riprap                         5,200         C.Y.           80.00       416,000                 0
                     Seed & Sod                   46,200          S.Y.            0.45        20,790                 0
                     Clearing                          -          JOB             L.S.        10,000                 0
                     Closure Structure                            JOB             L.S.       508,000                 0

                  Floodwall (7,370 FT.)
                     Concrete                     l3t300          C.Y.          200.00     2,660,000                 0
                     Steel                     1,527,000          LB.             0.50       763,500                 0
                     Fill                         229600          C.Y.            3.00        67,800                 0
                     Seed & Sod                  185,000          S.Y.            0.45        83t250                 0
                     Excavation                   21,900          C.Y.            2.20        48t 180                0
                     Stripping                      9,100         C.Y.            2.50        22,750                 0
                     Clearing                          -          JOB             L.S.        20tOOO                 0
                     Closure Structure                                               -              -                -
                          Sub-total                                                        6,332,020                 0
                     Contingencies                                                30%      1,899,980                 0
                          Sub-total                                                        gt232,000                 0
                     E&D                                                          15%      It234Y500                 0
                     S&A                                                            5%       411,500                 0
                          Sub-total                                                       $9,878,000         $430,200
                  Total Cost                (April 1980)                                        $ 10,308,200

                  AC - acre
                  C.Y. - cubic yard
                  LB. - pound
                  S.Y. - square yard
                  L.S. - lump sum

                                                                  E-59

                                                                  TABLE E-28

                                                        ROCK HALL COST SUMMARY
                                                       FOR STRUCTURAL PLAN RH-5
                                                     (140-Year Event, 12 Foot Elevation)
                                                                April 1980 Costs -

                      DESCRIPTION               QUANTITY            UNIT UNIT COST                       COST
                                                                                               FEDERAL          NON-FED

                      Lands
                         Levee                            9.7         AC       $ 15,000         $      0       $ 145,500
                         Wall                             1.5         AC           20,000              0            30,000
                              Sub-total                                                                0           175,500
                         Contingencies                                              20%                0            35,100

                      Relocations (None)

                      Levee (7,700 FT.)
                         Stripping                   14,400         C.Y.            2.50         36,000                  0
                         Trenching                   48,700         C.Y.            2.50        121,750                  0
                         Tot. Embankment             109,000        C.Y.            7.00        763,000                  0
                         Riprap,                          -         C.Y.                -              -                 -
                         Seed & Sod                  29,200         S.Y.            0.45         13,140                  0
                         Clearing                         -         JOB             L.S.         15,000                  0
                         Closure Structure                -         JOB             L.S.        160,000                  0

                      Floodwall (2,205 FT.)
                         Concrete                     3,100         C.Y.           200.00       620,000                  0
                         Steel                      356,200          LB.            0.50        178,IUO                  0
                         Fill                         6,000         C.Y.            3.00         18,000                  0
                         Seed & Sod                  48,200         S.Y.            0.45         21,690                  0
                         Excavation                   5,800         C.Y.            2.20         12,760                  0
                         Stripping                    29300         C.Y.            2.50           5,750                 0
                         Clearing                         -         JOB             L.S.         10,000                  0
                         Closure Structure                                                             -                 -
                              Sub-total                                                        1,975,190                 0
                         Contingencies                                              30%         592,810                  0
                              Sub-total                                                       2,568,000                  0
                         E&D                                                        15%         3849750                  0
                         S&A                                                          5%        1289250                  0
                              Sub-total                                                      $3,0819000          @2102600

                      Total Cost               (April 1980)                                          $3,2919600

                      AC - acre
                      C.Y. - cubic yard
                      LB. - pound
                      S.Y. - square yard
                      L.S. - lump sum

                                                                    E-60

                                                              TABLE E-29

                                                    ROCK HALL COST SUMMARY
                                                   FOR STRUCTURAL PLAN RH-6
                                                 (500-Year Event, 15 Foot Elevation)
                                                          - April 1980 Costs -

                  DESCRIPTION               QUANnTY            UNIT UNIT COST                          COST
                                                                                           FEDERAL          NON-FED

                  Lands
                    Levee                            14.3        AC         $ 15,000         $      0      $ 214@500
                    Wall                              1.7        AC             20,000              0           34,000
                          Sub-total                                                                 0         248,500
                    Contingencies                                                20%                0           49,700

                  Relocations (None)

                  Levee (9,450 FT.)
                    Stripping                    21,800          C.Y.            2.50         54,500                 0
                    Trenching                    59@800          C.Y.            2.50        149,500                 0
                    Tot. Embankment              177,400         C.Y.            7.00       1,241,800                0
                    Riprap                            -          C.Y.                -              -                -
                    Seed & Sod                   42,400          S.Y.            0.45         19,080                 0
                    Clearing                          -          JOB             L.S.         20,000                 0
                    Closure Structure                 -          JOB             L.S.        344,000                 0

                  Floodwall (2,205 FT.)
                    Concrete                       39800         C.Y.           200.00       760,000                 0
                    Steel                        439,900         LB.             0.50        219,950                 0
                    Fill                           69600         C.Y.            3.00         19,800                 0
                    Seed & Sod                   54,100          S.Y.            0.45         24,345                 0
                    Excavation                     69400         C.Y.            2.20         14,080                 0
                    Stripping                      21700         C.Y.            2.50           6,750                0
                    Clearing                          -          JOB             L.S.         10,000                 0
                    Closure Structure                                                -              -                -
                          Sub-total                                                         2,883,805                0
                    Contingencies                                                30%         865,195                 0
                          Sub-total                                                         397499000                0
                    E&D                                                          15%         562,350                 0
                    S&A                                                            5%        187,450                 0
                          Sub-total                                                       $4t498p8OO         $298,200
                  Total Cost               (April 1980)                                            $4,797,000

                  AC - acre
                  C.Y. - cubic yard
                  LB. - pound
                  S.Y. - Square yard
                  L.S. - lump sum

                                                                 E- 61

                                                                TABLE E-30

                                                     ROCK HALL COST SUMMARY
                                                  FOR NONSTRUCTURAL PLAN RH-7
                                                              (15-Year Event)
                                                           - April 1980 Costs -

                     DESCRIPTION                                                                           COST

                     Residential

                       Utility Additions
                             I Unit                                                                         7,400
                       Raising
                             0 Homes V-4"                                                                      0
                            _T Homes 2'-8"                                                                     0
                             T Homes 4'-0"                                                                     0
                       Rel6c-ations
                             0 Homes                                                                           0
                            T_ Trailers                                                                   72,000
                       AcqtTis-ition & Demolition
                             4 Homes                                                                   -214,800
                                                                             Sub-total                   294,200
                                                               Contingencies Cd 20%                       58,800
                                                                                                         353,000
                                                                    E&D, S&A @ 1%                          3 500
                                                                                 Total

                     Commercial

                       Acquisition & Demolition
                             0 Structures                                                                $     0
                       Raising
                             0 Structures  11-411                                                              0
                            -7 Structures 21-81'                                                               0
                            _T Structures 41-011                                                               0
                       Relo-cations
                             I Structure                                                                  13,450
                       Flooap-roof ing
                             6 Structures                                                                 51,20U
                       Flooa'w-afl
                            2,9421 Length for 10 Structures                                              407,500
                                                                             Sub-total                   472,150
                                                               Contingencies (d 30%                      141,6UO
                                                                                                         613,750
                                                                         E&D @ 15%                        92,100
                                                                          S&A Ca 5%                       30,650
                                                                                 Total                $  736,500
                     Total Cost (April 1980)                                                          $1,093,000

                                                                 E- 6 2

                                                               TABLE E-31
                                                    ROCK HALL COST SUMMAgy
                                                 FOR NONSTRUCTURAL PLAN RH-8
                                                            (25-Year Event)
                     DESCRIPTION                          - April 1980 Costs
                     Residential
                                                                                                      COST
                         Utility Additions
                               3 Units
                        Raising
                              0 Homes 11-4f,                                                        22@20()
                              1 Home Z-81#
                             !@HOmes 4@-(),,
                       Relocations                                                                       0
                              0 Homes                                                                8,500
                             13 railers                                                                 0
                       Acquil't-Ion Demolition                                                          0
                            1-8 'Homes                                                            156,000

                                                              C
                                                                0         Sub-total               7091()()
                                                                 ntingencies @ 20%
                                                                                                  179200
                                                                           A @ 1%
                                                                  E&D, S&
                 Commercial                                                   Total               10750
                                                                                              l'US5,750
                     Acquisition & Demolition
                           2 Structures
                     Raisi6g--
                           0- Structures                                                       239,700
                          0 _Structures 21@.8,,
                          0. Structures
                    Aelocations                                                                      0
                          1 Structure                                                                0
                   rloodproofing                                                                     0
                         5 Structures                                                           13
                   ,rIOodwalj                                                                     ,450
                        3,552' Length for 14 Structures                                        56,60Q
                                                                      Sub-total              599700
                                                          Contingencies Ld 30%
                                                                                             27280()
                                                                   E&D @ 15%                -i@ Z @B @
                                                                    SdcA Ld 5%              177,350
            Total Cost (April 1980)                                      Total               59 100
                                                                                         $
                                                                                        $2,504,450

                                                     E-63

                                                                   TABLE E-32

                                                        ROCK HALL COST SUMMARY
                                                     FOR NONSTRUCTURAL PLAN RH-9
                                                                 (50-Year Event)
                                                                April 1980 Costs -

                      DESCRIPTION                                                                               COST

                      Residential

                           Utility Additions
                                   3  Units                                                               $ 22,200
                           Raising
                                   I  Home 11-411                                                                8,500
                                   3  Homes 21-811                                                            37,500
                                   1  Home 41-011                                                             14,200
                           RelocWt-ions
                                   I Home                                                                    121,000
                                   16 Trailers                                                               192,000
                           Acquisition & Demolition
                                   56 Homes                                                                2,184,000
                                                                                     Sub-total             2,579,400
                                                                       Contingencies @ 20%                   5151900
                                                                                                           3,095@300
                                                                            E&D, S&A (a 1%                    30,950
                                                                                          Total            3,1269250

                      Commercial

                           Acquisition & Demolition
                                   2 Structures                                                          $ 239,700
                           Raising
                                   0  Structures 11-411                                                              0
                                   0  Structures V-811                                                               0
                                   _T Structures 41-011                                                              0
                           Reloc:iflions
                                   I Structure                                                                13,450
                           Floodp-roofing
                                   10 Structures                                                              99,800
                           Floodwall
                                   3,5521 Length for 13 Structures                                           757,400
                                                                                     Sub-total             1,110,350
                                                                       Contingencies @ 30%                   333,100
                                                                                                           1,443,450
                                                                                 E&D @d 15%                  216,500
                                                                                   S&A @ 5%                   72,200
                                                                                          Total            IJ32,150

                      Total Cost (April 1990)                                                             :>4,858,400

                                                                     E-64

                                                            TABLE E-33

                                                  ROCK HALL COST SUMMARY
                                              FOR NONSTRUCTURAL PLAN RH-10
                                                          (80-Year Event)
                                                        - April 1980 Costs -

                 DESCRIPTION                                                                           COST

                 Residential

                    Utility Additions
                       7 Units                                                                  $     51,800
                    Raising
                       0 Homes P-4"                                                                        0
                      T-3 Homes 21-811                                                              138,600
                       1 Home 41-01'                                                                  11,600
                    R(il'ocations
                       2 Homes                                                                      152,000
                      W_ Trailers                                                                   312,000
                    Acquisition & Demolition
                      91 Homes                                                                    3,549,000
                                                                              Sub-total           4,215,000
                                                                Contingencies @OL 20%               843,000)
                                                                                                  5,058,00-
                                                                      E&D, S&A (d 1%                  50,600
                                                                                   Total          5@108,600

                 Commercial

                    Acquisition & Demolition
                       2 Structures                                                            $    239,700
                    Raising
                       0 Structures   11-411                                                               0
                       (F Structures  21-811                                                               0
                           Structures 41-001                                                               0
                    Ril-ocations
                       I Structure                                                                    13,450
                    Fl5o-dproofing
                      10 Structures                                                                 108,720
                    FloRwall
                      3,5521 Length for 13 Structures                                               943,900
                                                                              Sub-total           1,305,770
                                                                Contingencies (d 30%                391,730
                                                                                                  1,697,50U
                                                                          E&D (Ld 15%               254,600
                                                                            S&A @d 5%                 84900
                                                                                  Total        $  22037:080
                 Total Cost (April 1980)                                                      $ 72145,600

                                                              E- 65

                                                                           TABLE E-34

                                                      ROCK HALL FLOOD CONTROL ALTERNATIVES:
                                                      ESTIMATES OF ANNUAL EQUIVALENT CHARGES
                                                                       - April 1980 Costs -

                                                               Interest &
                                                             Amortization         Interest &        Operation &                Total Annual
                          Plan            First Cost            Factor*         Amortization      Maintenance Costs         Equivalent Charges
                          RH- 1        $ 9,454,8nn             ox132             $674,300               $  579600             $ 731,900
                          RH-2           13,513,8nn            0.07132            963,800                  820500               19046,300
                          RH-3           7,995,6nn             0.07132            570,2nO                  491000                619,200
                          RH-4           10,3n8,20n            0.07132            735,20                   639300                793,500
                          RH-5           3,291,6nn             OXI32              234,sno                  19,800                254?600
                                                                                                           289
                 a,       RH-6           4,797,nnn             n.07132            342,ino                      800               370,900
                 aN       RH-7           1,093,nnn             0.07361.             809500                      0                  80,500
                          RH-8           2.5n4,45n             n.07361            184,350                       0                184,350
                          RH-9           4,858,4nn             n.n7361            357,600                       0                357v600
                          RH-1f)       $ 71145,6nn             n.07361         $  526,000              $        0             $  526,000

                            The Interest and Amortization Factor is based on an economic life of       100 years for structural
                          projects (5nyears for nonstrurtural projects) and a Federal interest rate of 7 1/8 percent (FY 1980).

                             Estimates of operation and maintenance costs were based on one percent of the construction costs.

                SNOW HILL

                A total of seven plans, four structural and three nonstructural, were developed during the
                analysis of tidal flooding in Snow Hill, Maryland. Structural Plans SH-1 and SH-2 were
                designed to protect against the 70-year tidal flood event. Both plans include levee and
                floodwall construction to a top elevation of nine feet. Both of these plans also include
                floodwall construction in the amount of 5,680 linear feet with excavation work being the
                only cost differential. Structural Plan SH-1 includes 1,510 linear feet of levee
                construction, which is 1,110 feet more than that of Plan SH-2. Estimated costs of Plans
                SH-1 and SH-2, in April 1980 dollars, are $3.01 million and $2.84 million, respectively.
                These costs are listed in Tables E-35 and E-36, respectively.

                To protect against flood events approximating the 500 year occurrence, both structural
                Plans SH-3 and SH-4 were designed with a top elevation of I I feet. Construction of
                5,840 Jinear feet of floodwall is common to both of these plans. However, Plan SH-3
                includes construction of 2,080 feet of levee which is more than three times the amount
                included in Plan SH-4. The April 1980 estimated cost of Plan SH-3 is $3.74 million
                compared to Plan SH-4 estimated costs of $3.6 million. These costs are itemized in
                Tables E-37 and E-38, respectively.

                Nonstructural Plan SH-5 was developed to protect against the 25-year tidal event. This
                plan required no residential alterations and a minimum of commercial protection. The
                costs of this plan, as shown in Table E-39, approximated $0.3 million dollars. Plan SH-6
                was also nonstructural and the April 1980 costs of $0.5 million reflect protection against
                the 70-year event. Acquisition and demolition of two structures, raising of two
                structures, floodproofing, and 1, 600 feet of floodwall construction are elements of this
                plan. Estimated costs of Plan SH-6 are presented in Table E-40. Nonstructural Plan SH-
                7 was designed to protect against the 220-year tidal event. The cost of this plan, in April
                1980 dollars, was estimated to be $1.21 million. With the exception of the acquisition
                and demolition of three residences, Plan SH-7 is oriented entirely toward the commercial
                sector. Indeed, 95 percent of the plan costs are for protection of the commercial
                sector. Itemized costs of Plan SH-7 are presented in Table E-41. Estimated annual costs
                of Plans SH-1 through SH-7 are shown in Table E-42.

                                                          E- 67

                                                                    TABLE E-35

                                                         SNOW HILL COST SUMMARY
                                                        FOR STRUCTURAL PLAN SH-1
                                                       (70-Year Event, 9 Foot Elevation)
                                                                 April 1980 Costs -

                       DESCRIPTION               QUANTITY             UNIT UNIT COST                          COST
                                                                                                    FEDERAL          NON-FED

                       Lands
                         Levee                             1.1           AC        $ 10,000          $      0        $ 11,000
                         Wall                              3.8           AC            15,000               0           57,000
                               Sub-total                                                                    0           @8'000
                         Contingencies                                                   20%                0           13,600

                       Relocations (None)

                       Levee (1,510 FT.)
                         Stripping                     1,600           C.Y.              2.70           4,320                 U
                         Trenching                     9,600           C.Y.              2.70         25,920                  0
                         Tot. Embankment               12,900          C. Y.             7.50         96,750                  0
                         Riprap                            -           C.Y.                 -               -                 -
                         Seed & Sod                    3,700           S.Y.              0.45           1,665                 0
                         Clearing                          -           JOB               L.S.           5,000                 0
                         Closure Structure                 -                                -

                       Floodwall (5,680 FT.)
                         Concrete                      6,200           C.Y.            200.00       1,240,000                 0
                         Steel                       714,700             LB.             0.50        357,350                  0
                         Fill                          13,700          C.Y.              3.00         41,100                  0
                         Seed & Sod                   109,700          S.Y.              0.45         49,365                  0
                         Excavation                    13,200          C.Y.              2.50         33,000                  0
                         Stripping                     5,200           C.Y.              2.50         13,000                  0
                         Clearing                          -           JOB               L.S.           5,000                 0
                         Closure Structure                             JOB               L.S.           5,000                 0
                               Sub-total                                                            19877,470                 0
                         Contingencies                                                   30%         563,530                  0
                               Sub-total                                                            2,441,000                 0
                         E&D                                                             15%         366,150                  0
                         S&A                                                               5%        122,050                  0
                               Sub-total                                                          $2,929,200           $81,600
                       Total Cost               (April 1980)                                                $3,010,800

                       AC - acre
                       C.Y. - cubic yard
                       LB. - pound
                       S.Y. - square yard
                       L.S. - lump sum

                                                                       E-68

                                                            TABLE E-36

                                                  SNOW HILL COST SUMMARY
                                                 FOR STRUCTURAL PLAN SH-2
                                                 (70-Year Event, 9 Foot Elevation)
                                                        - April 1980 Costs -

                  DESCRIPTION              QUANTITY            UNIT UNIT COST                        COST
                                                                                           FEDERAL         NON-FED

                  Lands
                    Levee                           0.3          AC        $ 10,000         $      0        $ 3,000
                    Wall                            3.7          AC            15,000              0          55,500
                          Sub-total                                                                0          58,500
                    Contingencies                                                20%               0          11,700

                  Relocations (None)

                  Levee (400 FT.)
                    Stripping                       400          C.Y.            2.70          1,080                0
                    Trenching                    2,500           C.Y.            2.70          6,750                0
                    Tot. Embankment              3,400           C.Y.            7.50        25,500                 0
                    Riprap                           -           C.Y.               -
                    Seed & Sod                   1,000           S.Y.            0.45            450                0
                    Clearing                         -           JOB             L.S.          2,000                0
                    Closure Structure                -                              -

                  Floodwall (5,680 FT.)
                    Concrete                     6,200           C.Y.          200.00      1,240,000                0
                    Steel                      714,700           LB.             0.50       357,350                 0
                    Fill                         13,700          C.Y.            3.00        419100                 0
                    Seed & Sod                 109,700           S. Y.           0.45        49,365                 0
                    Excavation                   12,700          C.Y.            2.50        31,750                 0
                    Stripping                    50200           C.Y             2.50        13,000                 0
                    Clearing                         -           JOB             L.S.          5,000                0
                    Closure Structure                            JOB             L.S.          59000                0
                          Sub-total                                                        1,778,345                0
                    Contingencies                                                30%        533,655                 0
                          Sub-total                                                        2,312,000                0
                    E&D                                                          15%        346,800                 0
                    S&A                                                            5%       115,600                 0
                          Sub-total                                                       $2,774@400         @70,200
                  Total Cost              (April 1980)                                             $29844,600

                  AC - acre
                  C.Y. - cubic yard
                  LB. - pound
                  S.Y. - square yard
                  L.S. - lump sum

                                                                 E- 69

                                                                   TABLE E-37

                                                         SNOW HILL COST SUMMARY
                                                        FOR STRUCTURAL PLAN SH-3
                                                      (500-Year Event-, 11 Foot Elevation)
                                                               - April 1980 Costs -

                      DESCRIPTION                QUANTITY             UNIT UNIT COST                          COST
                                                                                                   FEDERAL           NON-FED

                      Lands
                         Levee                             1.8          AC         $ 1%000           $      0       $ 18tooo
                         Wall                              4.0          AC             15tOOO               0           60,000
                              Sub-total                                                                     0           78,000
                         Contingencies                                                   20%                0           15,600

                      Relocations (None)

                      Levee (2,080 FT.)
                         Stripping                     2,700            C.Y.             2.50          6,750                 0
                         Trenching                    13,200            C.Y.             2.50         33,000                 0
                         Tot. Embankment              21,000            C.Y.             7.00        147,000                 0
                         Riprap                             -           C.Y.                -               -                -
                         Seed & Sod                    6,000            S.Y.             0.45          2,700                 0
                         Clearing                           -           JOB              L.S.          6,000                 0
                         Closure Structure                                                  -

                      Floodwall (5,840 FT.)
                         Concrete                      7t6OO            C. Y.          200.00      lt520,000                 0
                         Steel                       872,100            LB.              0.50        436,050                 0
                         Fill                         l5t200            C.Y.             3.00         45,600                 0
                         Seed & Sod                  122,500            S.Y.             0.45         55,125                 0
                         Excavation                   14J00             C.Y.             2.50         36,750                 0
                         Stripping                     5,900            C.Y.             2.50         14,750                 0
                         Clearing                           -           JOB              L.S.          5,000                 0
                         Closure Structure                              JOB              L.S.         30,000                 0
                              Sub-total                                                            2,338,725                 0
                         Contingencies                                                   30%         701@275                 0
                              Sub-total                                                            3,040,000                 0
                         E&D                                                             15%         456,000                 0
                         S&A                                                               5%        152,000                 0
                              Sub-total                                                           $3,648,000           $93t6OO
                      Total Cost               (April 1980)                                               $ 3,741,600

                      AC - acre
                      C.Y. - cubic yard
                      LB. - pound
                      S.Y. - square yard
                      L.S. - lump sum

                                                                        E-70

                                                            TABLE E-38

                                                  SNOW HILL COST SUMMARY
                                                 FOR STRUCTURAL PLAN SH-4
                                               (500-Year Event, 11 Foot Elevation)
                                                        - April 1980 Costs -

                 DESCRIPTION              QUANTITY            UNIT UNIT COST                         COST
                                                                                          FEDERAL          NON-FED

                 Lands
                    Levee                           0.5          AC         $ 10@000               0        $ 5,000
                    Wall                            4.2          AC           15@000               0          63,000
                         Sub-total                                                                 0          68,000
                    Contingencies                                               20%                0          13,600

                 Relocations (None)

                 Levee (620 FT.)
                    Stripping                      800           C.Y.           2.70           2PI60               0
                    Trenching                    3,900           C.Y.           2.70         10,530                0
                    Tot. Embankment              6,100           C.Y.           7.50         45,750                0
                    Riprap                         400           C.Y.         110.00         44,000                0
                    Seed & Sod                   1,500           S.Y.           0.45             675               0
                    Clearing                         -           JOB            L.S.           6,000               0
                    Closure Structure                -                              -

                 Floodwall (5,840 FT.)
                    Concrete                     7,600           C.Y.         200.00       1,520,000               0
                    Steel                      872,100           I.B.           0.50        436,050                0
                    Fill                        15,200           C.Y.           3.00         45,600                0
                    Seed & Sod                 122,500           S.Y.           0.45         55,125                0
                    Excavation                  14,700           C.Y.           2.50         36,750                0
                    Stripping                    5,900           C.Y.           2.50         14,750                0
                    Clearing                         -           JOB            L.S.           5,000               0
                    Closure Structure                            JOB            L.S.         30,000                0
                         Sub-total                                                         2,252,390               0
                    Contingencies                                               30%         675,610                0
                         Sub-total                                                         2,928,000               0
                    E&D                                                         15%         4399500                0
                    S&A                                                           5%        146,500                0
                         Sub-total                                                       @3,514,000          :>81,600

                 Total Cost              (April 1980)                                              $3,595,600

                 AC - acre
                 C.Y. - cubic yard
                 I.B. - pound
                 S.Y. - square yard
                 L.S. - lump sum

                                                                 E-71

                                                               TABLE E-39

                                                     SNOW HILL COST SUMMARY
                                                 FOR NONSTRUCTURAL PLAN SH-5
                                                             (25-Year Event)
                                                          - April 1980 Costs -

                     DESCRIPTION                                                                           COST

                     Residential

                       Utility Additions
                             0 Units                                                                           0
                       Raisir-n-g
                             0  Homes 11-411                                                                   0
                             IT Homes V-81'                                                                    0
                            _T Homes 4'-0"                                                                     0
                       Rel6c-ations
                             0 Homes                                                                           0
                             6- Trailers                                                                       0
                       AcqtTislition & Demolition
                             0 Homes                                                                           0

                                                                                  Sub-total                    0
                                                                    Contingencies Ld 20%                       0

                                                                         E&D, S&A @ 1%                         0
                                                                                       Total                   0

                     Commercial

                       Acquisition & Demolition
                             0 Structures                                                                 $    0
                       Raisi@ng
                             I Structure 11-411                                                             9,800
                             0 Structures 21-811                                                               0
                            _T Structures 41-011                                                               0
                       Rel6c-ations
                             0 Structures                                                                      0
                       FlooEp-roof ing
                             2 Structures                                                                   8,700
                       FlooTw-all
                            1,7601 Length  for 4 Structures                                             176,000
                                                                                   Sub-total            194,500
                                                                    Contingencies @ 30%                    58,400
                                                                                                        252,900
                                                                               E&D (d 15%                  37,950
                                                                                S&A k@d 5%                129 650
                                                                                       Total         $  303,500
                     Total Cost (April 1980)                                                         $  303,500

                                                                  E-72

                                                             TABLE E-40

                                                   SNOW HILL COST SUMMARY
                                               FOR NONSTRUCTURAL PLAN SH-6
                                                           (70-Year Event)
                                                           April 1980 Costs -

                  DESCRIPTION                                                                              COST

                  Residential

                     Utility Additions
                           0 Units                                                                              0
                     Raisfn_g
                           0 Homes 11-4"                                                                        0
                           -T Homes 21-811                                                                      0
                           T Homes 41-01'                                                                       0
                     Rel6c'ations
                           0 Homes                                                                              0
                           F Trailers                                                                           0
                     AcqtTis-ition & Demolition                                                            17,000
                           1 Home
                                                                                  Sub-total                17,000
                                                                   Contingencies (d 20%                     3400
                                                                                                           20' 400
                                                                         E&D, S&A (d 1%                       200
                                                                                      Total            $   Z05, 6 0 0

                  Commercial

                     Acquisition & Demolition
                           I Structure                                                                 $ 16,100
                     RaisEn-g
                           0 Structures 11-411                                                                  0
                           T Structures 21-8"                                                              19,300
                           0 Structures    41-011                                                               0
                     Rel6c-ations
                           0 Structures                                                                         0
                     Floo3p-roof ing
                           5 Structures                                                                    40,500
                     Flood-wall
                           1,630' Length for 3 Structures                                                 245,000
                                                                                  Sub-total               320,900
                                                                    Contingencies Ld 30%                   96,300
                                                                                                          417,200
                                                                              E&D (d 15%                   62,550
                                                                                S&A @d 5%                  20P850
                                                                                       Total           @S 500,600
                  Total Cost (April 1980)                                                              $521,200

                                                                 E-73

                                                               TABLE E-41

                                                      SNOW HILL COST SUMMARY
                                                  FOR NONSTRUCTURAL PLAN SH-7
                                                             (220-Year Event)
                                                           - April 1980 Costs -

                     DESCRIPTION                                                                            COST

                     Residential

                        Utility Additions
                             0 Units                                                                       $    0
                        Raising
                             0  Homes V-4"                                                                      0
                            -T Homes V-811                                                                      0
                             T Homes 41-011                                                                     0
                        Rel6c-ations
                             0 Homes                                                                            0
                             6- Trailers                                                                        0
                        AcqtTis-ition & Demolition
                             3 Homes                                                                       50,400
                                                                                   Sub-total               50,400
                                                                     Contingencies @ 20%                   10floo
                                                                                                           60,500
                                                                          E&D, S&A Ld 1%                       600
                                                                                       Total               61,100

                     Commercial

                        Acquisition & Demolition
                             5 Structures                                                             $ 253,000
                        Raisl-ng
                             0 Structures 11-411                                                                0
                             1 Structure 21-811.                                                            8,500
                             0 Structures 41-011                                                                0
                        Rel6c-ations
                             0 Structures                                                                       0
                        Floodp--roofing
                             5 Structures                                                                125,400
                        Floojw-all
                             1,9501 Length for 3 Structures                                              349,700
                                                                                   Sub-total             736,600
                                                                     Contingencies Cd 30%                221,000
                                                                                                         957,600
                                                                               E&D Cd 15%                143,625
                                                                                S&A (d 5%                  47,875
                                                                                       Total            1-149, 100

                     Total Cost (April 1980)                                                            1,210,200

                                                                   E-74

                                                                       TABLE E-42

                                                    SNOW HILL FLOOD CONTROL ALTERNATIVES:
                                                   ESTIMATES OF ANNUAL EQUIVALENT CHARGES
                                                                     April 198n Costs -

                                                      Interest &
                                                     Amortization       Interest &        Operation &                Total Annual
                      Plan           First Cost        Factor*        Amortization      Maintenance Costs         Equivalent Charges
                      SH- 1       $ 3,nin,8nn          n.n7I32         $ 214,7nn               $ i8,gnn                 $ 233,500
                      SH-2          2,844,6nn          n.n7I32            202,gnn                 17,8on                  220,700
                      SH-3          3,741,6nn          n.n7I32            266,gnn                 23,4no                  290,300
                      SH-4          3,595,6nn          n.n7132            256940n                 22,500                  278,900
                      SH-5             3n3,5nn         n.n7361             22,3nn                      n                    22,300
             tA       SH-6             521,2nn         n.n7361             38,4nn                      n                    38,400
                      SH-7        $ 1,2in,2nn          n.n7361         $   899100                 $    0                $   89,100
             Un
                      *The Interest and Amortization Factor is based on an economic life of I On years for structural projects (50
                      years for nonstructural projects) and a Federal interest rate of 7 1/8 percent (FY 198n).

                         Estimates of operation and  maintenance costs were based on one percent of the construction costs.

                    ST. MICHAELS

                    Four tidal flood protection plans were developed for the community of St. Michaels,
                    Maryland. Two structural plans protected against the 100-year and 450-year event while
                    the two nonstructural plans protected against the 45-year event and the 100-year event.
                    Structural Plan SM-1 consisted of 2,600 feet of levee construction and 11,400 feet of
                    floodwall construction. With a top elevation of 10 feet, this plan protected against the
                    100-year event at a cost of $7.2 million in April 1980 dollars. Structural Plan SM-2 also
                    included levee construction (8,700 feet) and floodwall. construction (15,200 feet).
                    However, Plan SM-2 was designed to a top elevation of 12 feet. This plan design
                    protected against the 450-year event at an estimated April 1980 cost of $11.98 million.
                    Estimated plan costs are presented in Tables E-43 and E-44 for plans SM- I and SM-2,
                    respectively.

                    Nonstructural Plan SM-3 included four utility room additions, demolition of one
                    structure, floodproofing of one structure, and construction of 2,500 feet of f loodwall.
                    Designed to protect against the 45-year flood event, this plan was estimated to cost
                    $0.73 million in April 1980 dollars. Plan SM-4 is similar to Plan SM-3; however, Plan SM-
                    4 increased the residential structures affected to seven (five additions, 2 raisings) and
                    increased the commercial floodproofing measures and floodwall heights. This plan
                    protected against the 100-year event at an estimated April 1980 cost of $0.92 million.
                    Costs of Plans SM-3 and SM-4 are listed in Tables E-45 and E-46, respectively, while
                    Table E-47 presents estimates of annual costs for plans SM-1 through SLM-4.

                                                             E-76

                                                               TABLE E-43

                                                   ST. MICHAELS COST SUMMARY
                                                   FOR STRUCTURAL PLAN SM-1
                                                 (100-Year Event, 10 Foot Elevation)
                                                            April 1980 Costs -

                  DESCRIPTION                QUANTITY            UNIT UNIT COST                           COST
                                                                                             FEDERAL            NON-FED

                  Lands
                     Levee                             2.8          AC          $20,000        $       0        $ 56,000
                     Wall                              7.7          AC            309000               0          231,000
                          Sub-total                                                                    0          287,000
                     Contingencies                                                  20%                0           57,400

                  Relocations (None)

                  Levee (2,590 FT.)
                     Stripping                       49200        C. Y.             2.50         10,500                 0
                     Trenching                     169400         C.Y.              2.50         41,000                 0
                     Tot. Embankment               33,500         C.Y.              7.00        234P500                 0
                     Riprap,                            -         C.Y.                 -               -                -
                     Seed & Sod                      8,800        S.Y.              0.45           39960                0
                     Clearing                           -         JOB               L.S.           2,000                0
                     Closure Structure                  -                              -

                  Floodwall (11,395 FT.)
                     Concrete                      14@800         C.Y.            200.00     21960,000                  0
                     Steel                      1,690,300           LB.             0.50        845,150                 0
                     Fill                          299600         C. Y.             3.00         88,800                 0
                     Seed & Sod                   238,300         S.Y.              0.45        107,235                 0
                     Excavation                    28,600         C.Y.              2.20         62,920                 0
                     Stripping                     11,500         C.Y.              2.50         28,750                 0
                     Clearing                           -         JOB               L.S.         25,000                 0
                     Closure Structure                                                 -               -
                          Sub-total                                                          4,409,815                  0
                     Contingencies                                                  30%      19323,185                  0
                          Sub-total                                                          5J33,000                   0
                     E&D                                                            15%         859,950                 0
                     S&A                                                              5%        286,650                 0
                          Sub-total                                                          $6,8799600         $344@400

                  Total Cost                (April 1980)                                               $7,224,000

                  AC - acre
                  C.Y. - cubic yard
                  LB. - pound
                  S.Y. - square yard
                  L.S. - lump sum

                                                                  E-77

                                                                    TABLE E-44

                                                         ST. MICHAELS COST SUMMARY
                                                         FOR STRUCTURAL PLAN SM-2
                                                      (450-Year Event, 12 Foot Elevation)
                                                                  April 1980 Costs -

                       DESCRIPTION                 QUANTITY             UNIT UNIT COST                         COST
                                                                                                     FEDERAL          NON-FED

                       Lands
                          Levee                              9.4          AC          $20,000        $        0       $188,000
                          Wall                              10.7          AC            30,000                0         321,000
                               Sub-total                                                                      0         509,000
                          Contingencies                                                  20%                  0         101,800

                       Relocations (None)

                       Levee (8,690 FT.)
                          Stripping                      13,800         C.Y.             2.20            302360               0
                          Trenching                      55,000         C.Y.             2.40           132,000               0
                          Tot. Embankment              1060400          C. Y.            7.00          744,800                0
                          Riprap                              -         C.Y.                 -
                          Seed & Sod                     290000         S. Y.            0.45            13,050               0
                          Clearing                            -         JOB              L.S.            20,000               0
                          Closure Structure                             JOB              L.S.          200,000                0

                       Floodwall (15,200 FT.)
                          Concrete                       22,200         C.Y.           200.00        4,440,000                0
                          Steel                      2,547t3OO           LB.             0.50        lt273,650                0
                          Fill                           41,800         C.Y.             3.00          125,400                0
                          Seed & Sod                   338t600          S.Y.             0.45           152t370               0
                          Excavation                     409400         C.Y.             2.20            88,880               0
                          Stripping                      16,500         C.Y:             2.20           .36,300               0
                          Clearing                            -         JOB              L.S.            25,000               0
                          Closure Structure                                                  -
                               Sub-total                                                             7,281,810                0
                          Contingencies                                                  30%         2,184,190                0
                               Sub-total                                                             9,466,000                0
                          E&D                                                            15%         194209500                0
                          S&A                                                              5%          473,500                0
                               Sub-total                                                         $  11,360,000        $610@800
                       Total Cost                (April 1980)                                               $11,970,800

                       AC - acre
                       C.Y. - cubic yard
                       LB. - pound
                       S.Y. - square yard
                       L.S. - lump sum

                                                                        E-78

                                                         TABLE E-45

                                              ST. MICHAELS COST SUMMARY
                                            FOR NONSTRUCTURAL PLAN SM-3
                                                        (45-Year Event)
                                                     - April 1980 Costs -

                 DESCRIPTION                                                                     COST

                 Residential

                   Utility Additions
                         4 Units                                                              $29,600
                   Raisi-ng
                         0 Homes 11-411                                                              0
                         0 Homes V-81'                                                               0
                        _T Homes 41-01'                                                              0
                   Rel6c-ations
                         0 Homes                                                                     0
                        _T Trailers                                                                  0
                   AcqtTis-ition & Demolition
                         0 Homes                                                                     0
                                                                           Sub-total           29,600
                                                             Contingencies @@d 20%               52900
                                                                                               35,500
                                                                 E&D, S&A (d 1%                    400
                                                                               Total           35t9OO

                 Commercial

                   Acquisition & Demolition
                         I Structure                                                        $ 73,000
                   Raising
                         0 Structures 11-41-1                                                        0
                        _F Structures 21-811                                                         0
                        _T Structures W-011                                                          0
                   Relocations
                         0 Structures                                                                0
                   FlooUp-roof ing
                         I Structure                                                           23Y900
                   FlooTw-all
                        2,5001 Length for 5 Structures                                        3489000
                                                                           Sub-total          4449900
                                                             Contingencies Ld 30%             133,500
                                                                                              578,4UU
                                                                       E&D @d 15%              86,800
                                                                        S&A k@d 5%             281900
                                                                               Total          694,100

                 Total Cost (April 1980)                                                     $730,000

                                                             E-79

                                                                  TABLE E-46

                                                      ST. MICHAELS COST SUMMARY
                                                    FOR NONSTRUCTURAL PLAN SM-4
                                                                (100-Year Event)
                                                              - April 1980 Costs -

                       DESCRIPTION                                                                         COST

                       Residential
                         Utility Additions                                                             $  37@000
                                5 Units
                         Raisl_ng                                                                         19,600
                                2 Homes 11-411                                                                  0
                              _T Homes 21-81'                                                                   0
                                T Homes 41-011
                         Rel6c_ations                                                                           0
                                0 Homes                                                                         _0
                              -7 Trailers
                         AcqtTis-ition & Demolition                                                             0
                                0 Homes                                             Sub-total             56,600
                                                                     Contingencies @ 20%                  111300
                                                                                                          671907
                                                                           E&D, S&A (d 1%                     700
                                                                                        Total          5  68,600

                       Commercial
                         Acquisition & Demolition                                                      $ 73,000
                                I Structure
                         Raising                                                                                0
                                0 Structures V-4"                                                               0
                                  Structures V-8"                                                               0
                                  Structures 4'-0"
                         Rel6c-ations                                                                           0
                                0 Structures
                         FlooTp-roofing                                                                   27,500
                                1 Structure
                         Floo3-w-all
                              2,5001 Length for 5 Structures                                            4422900
                                                                                    Sub-total           543,400
                                                                     Contingencies        30%           1631000
                                                                                                        706@40
                                                                                E&D       15%           106,000
                                                                                 S&A @ 5%                 35,300
                                                                                        Total           847,700

                       Total Cost (April 1980)                                                         @9161300

                                                                     E-80

                                                                       TABLE E-47

                                                  ST. MICHAELS FLOOD CONTROL ALTERNATIVES:
                                                   ESTIMATES OF ANNUAL EQUIVALENT CHARGES
                                                                   - April 1980 Costs -

                                                      Interest &
                                                     Amortization       Interest &       Operation &                 Total Annual
                      Plan           First Cost         Factor*       Amortization      Maintenance Costs        Equivalent Charges
                      SM-1        $ 7,224,000           0.07132         $515,200                $44,100                 $559,300
                      SM-2          11,970,800          0.07132           853,800                72,800                   926,600
                      SM-3             730,000          0.07361            53,700                      0                   53,'700
                      SM-4        $ 916,300             0.07361         $ 67,400              $        0                $ 67,400
             co         The Interest and Amortization Factor is based on an economic life 6f 100 years for structural projects
                      (50 years for nonstructural projects) and a Federal interest rate of 7 1/8 percent (FY 1980).

                         Estimates of operation and maintenance costs were based on one percent of the construction costs.

                     TILGHMAN ISLAND

                     A total of seven tidal flood protection plans were developed for the analysis of Tilghman
                     Island, Maryland. Four structural plans considered levee and floodwall construction for
                     protection against the 90-year event and the approximate 500-year event. Structural
                     Plan TI-1 was designed to protect against the 90-year tidal flood event. This was based
                     on 7,500 feet of levee construction and 10,050 feet of floodwall construction to a top
                     elevation of nine feet. The estimated April 1980 cost of this plan was $7.37 million.
                     Also designed to protect against the 90-year flood event, Structural Plan TI-2 included
                     1, 250 feet of levee construction and 4, 100 feet of floodwall construction with a top
                     height of nine feet. This plan was less expensive than plan TI-1 and cost $2.34 million in
                     April 1980 dollars. Tables E-48 and E-49 reflect the itemized costs of these two plans.

                     Structural Plan TI-3 is an expanded version of Plan TI-1. The length of levee and
                     floodwall construction is the same in both plans but Plan TI-3 was designed to a top
                     elevation of 11 feet. This allowed for protection against the approximate 500-year
                     event. Cost of this plan in April 1980 dollars was estimated to be $8.90 million.
                     Structural Plan TI-4 also was developed to protect against tidal floods which approximate
                     the 500-year event. This plan is a modified version of Plan TI-2. The levee and f loodwall
                     lengths are the same as in Plan TI-2, (1,250 feet and 4,100 feet, respectively) but the top
                     elevation of 11 feet is two feet higher than the Plan TI-2 height. Cost of this plan was
                     estimated to be $2.88 million in April 1980 dollars. Costs of Plans TI-3 and TI-4 are
                     listed in Tables E-50 and E-51.

                     The three nonstrilctural tidal flood control plans for Tilghman Island range in cost from
                     $0.12 million to $2.77 million in April 1980 dollars. Nonstructural Plan TI-5 included
                     three trailer relocations, demolition of one house and 520 feet of floodwall
                     construction. Designed to protect against the 15-year event, this plan was estimated to
                     cost $0.12 million as shown in Table E-52. Plan TI-6 included raising of 7 structures,
                     relocation of 6 structures, floodproofing of one structure, demolition of 12 structures and
                     construction of 910 feet of floodwall. Estimated to cost $1.04million, as shown in Table
                     E-53, this plan was developed to protect against the 40-year tidal flood. The 90-year
                     flood event was the level of protection for which plan TI-7 was designed. The majority
                     of the plan costs were oriented toward the relocation, raising, and demolition of
                     residential structures. The biggest commercial cost item was the construction of more
                     than 1,500 feet of floodwall to protect 6 commercial structures. Costs of this plan are
                     shown in Table E-54 and were estimated to be $2.77 million in April 1980 dollars.
                     Estimates of annual costs for all the plans examined for protection of Tilghman Island
                     are found in Table E-55.

                                                              E-82

                                                                TABLE E-48

                                                 TILGHMAN ISLAND C05T SUMMARY
                                                     FOR STRUCTURAL PLAN TI-1
                                                   (90-Year Event, 9 Foot Elevation)
                                                           - April 1980 Costs -

                  DESCRIPTION                QUANTITY            UNIT UNIT COST                           COST
                                                                                               FEDERAL          FNON-FED

                  Lands
                    Levee                              7.7         AC           $20,000        $        0          $154,000
                    Wall                               6.6         AC             15,000                0            99,000
                          Sub-total                                                                     0           253,000
                    Contingencies                                                  20%                  0            50,600

                  Relocations                            I         JOB             L.5.           31,000                   0

                  Levee (7,510 FTJ
                    Stripping                     11,400           C.Y.            2.50           28,500                   0
                    Trenching                     48,000           C.Y.            2.20          105,600                   0
                    Tot. Embankment               85,400           C.Y.            7.00          597,000                   0
                    Riprap                          5,000          C.Y.            73.00         365,000                   0
                    Seed & Sod                    23,000           S.Y.            0.45           10,350                   0
                    Clearing                            -          JOB             L.S.           10,000                   0
                    Closure Structure                   -          JOB             L.S.           30,000                   0

                  Floodwall (10,050 FT.)
                    Concrete                      12,000           C.Y.          200.00        2P400,000                   0
                    Steel                       1,370,000          LB.             0.50          685,000                   0
                    Fill                          25,200           C.Y.            3.00           75,600                   0
                    Seed & Sod                    202,000          S. Y.           .0.45          90,900                   0
                    Excavation                    24,300           C.Y.            2.20           53,400                   D
                    Stripping                       9,700          C. Y.           2.50           24,250                   0
                    Clearing                            -                              -                -
                    Closure Structure                              JOB             L.5.           23,000                   0
                          Sub-total                                                            41529,600                   0
                    Contingencies                                                  30%         1,358,900                   0
                          Sub-total                                                            5,888,500                   0
                    E&D                                                            15%           883,300                   0
                    S&A                                                              5%          294,400                   0
                          Sub-total                                                         5 7tO66t2OO            @303@600
                  Total Cost                (April 1980)                                                $7,369,800

                  AC - acre
                  C.Y. - cubic yard
                  I.B. - pound
                  S.Y. - square yard
                  L.S. - lump sum

                                                                   E-83

                                                                 TABLE E-49

                                                   TILGHMAN ISLAND COST SUMMARY
                                                       FOR STRUCTURAL PLAN TI-2
                                                      (90-Year Event, 9 Foot Elevation)
                                                               April 1980 Costs -

                      DESCRIPTION               QUANTITY           UNIT UNIT COST                       COST
                                                                                             FEDERAL           NON-FED

                      Lands
                        Levee                            0.7         AC          $15,000       $       0         $10,500
                        Wall                             2.7         AC           20,000               0          54,000
                             Sub-total                                                                 0          64,500
                        Contingencies                                              20%                 0          12,900

                      Relocations (None)

                      Levee (1,250 FT.)
                        Stripping                     1,000        C.Y.            2.50            2v5OO               0
                        Trenching                     3,500        C.Y.            2.20            7,700               0
                        Tot. Embankment               5,200        C.Y.            7.00          36,400                0
                        Riprap                           -         C.Y.               -               -               -
                        Seed & Sod                    2,600        S.Y.            0.45            1,170               0
                        Clearing                         -                            -               -               -
                        Closure Structure                -                            -               -               -

                      Floodwall (4,100 FT.)
                        Concrete                      4,900        C.Y.           200.00        980,000                0
                        Steel                       559,000          LB.           0.50         279,500                0
                        Fill                         10,300        C.Y.            3.00          30,900                0
                        Seed & Sod                   82,200        S.Y.            0.45          36,990                0
                        Excavation                    9,900        C.Y.            2.20          21,780                0
                        Stripping                     4,000        C.Y.            2.50          10,000                0
                        Clearing                         -                            -               -               -
                        Closure Structure                          JOB             L.S.          45,000                0
                             Sub-total                                                         1,451,940               0
                        Contingencies                                              30%          435,060                0
                             Sub-total                                                         1,887,000               0
                        E&D                                                        15%          283,500                0
                        S&A                                                          5%          94v5OO                0
                             Sub-total                                                      $ 2,265tOOO          $772400
                      Total Cost              (April 1980)                                          $2,342,400

                      AC - acre
                      C.Y. - cubic yard
                      LB. - pound
                      S.Y. - square yard
                      L.S. - lump sum

                                                                   E- 84

                                                             TABLE E-50

                                               TILGHMAN ISLAND COST SUMMARY
                                                   FOR STRUCTURAL PLAN TI-3
                                                 (500-Year Event, 11 Foot Elevation)
                                                         - April 1980 Costs -

                 DESCRIPTION                QUANTITY          UNIT UNIT COST                         COST
                                                                                           FEDERAL          NON-FED

                 Lands
                    Levee                            9.8         AC          $15,000       $         0       $147,000
                    Wall                             7.0         AC           20,000                 0        140,000
                         Sub-total                                                                   0        287,000
                    Contingencies                                               20%                  0         57,400

                 Relocations                           I         JOB            L.S.          31,000                0

                 Levee (7,510 FT.)
                    Stripping                    14J00           C.Y.           2.50          36,750                0
                    Trenching                    47P600          C.Y.           2.20         104t720                0
                    Tot. Embankment             111,300          C.Y.           7.00         779,100                0
                    Riprap                        7tOOO          C.Y.           73.00        511,000                0
                    Seed & Sod                   28tI00          S.Y.           0.45          129645                0
                    Clearing                                     JOB            L.S.          10,000                0
                    Closure Structure                            JOB            L.S.          45tOOO                0

                 Floodwall (10,050 FT.)
                    Concrete                     l4t200          C.y.         200.00       298409000                0
                    Steel                     1,623t6OO          LB.            0.50         811,800                0
                    Fill                         27,200          C.y.           3.00          81,600                0
                    Seed & Sod                  219t6OO          S.Y.           0.45          98,820                0
                    Excavation                   26@300          C.Y.           2.20          57,860                0
                    Stripping                    10J00           C.Y.           2.50          26,750                0
                    Clearing                                                       -
                    Closure Structure                            JOB            L.S.          35,000                0
                         Sub-total                                                         5,482,045                0
                    Contingencies                                               30%        1,644,614                0
                         Sub-total                                                         7,126t660                0
                    E&D                                                         15%        1,069,000                0
                    S&A                                                           5%         356,300                0
                         Sub-total                                                       $ 8,551t960         $344,400

                 Total Cost               (April 1980)                                               $8,896,360

                 AC - acre
                 C.Y. - cubic yard
                 I.B. - pound
                 S.Y. - square yard
                 L.S. - lump sum

                                                                 E-85

                                                                  TABLE E-51

                                                    TILGHMAN ISLAND COST SUMMARY
                                                       FOR STRUCTURAL PLAN TI-4
                                                     (500-Year Event,11 Foot Elevation)
                                                                April 1980 Costs -

                      DESCRIPTION               QUANTITY            UNIT UNIT COST                       COST
                                                                                               FEDERAL          NON-FED

                      Lands
                        Levee                             1.1         AC         $15,000       $        0          $16,500
                        Wall                             2.9          AC           20,000               0           58,000
                             Sub-total                                                                  0           740500
                        Contingencies                                               20%                 0           14,900

                      Relocations (None)

                      Levee (1,250 FT.)
                        Stripping'                    1,600         C.Y.            2.50            4,000                  0
                        Trenching                     8,000         C.Y.            2.20          17,600                   0
                        Tot. Embankment              12,200         C.Y.            7.00          85,400                   0
                        Riprap                           -          C.Y.               -                -                 -
                        Seed & Sod                    3,600         S.Y.            0.45            1,620                  0
                        Clearing                         -                             -                -                 -
                        Closure Structure                -

                      Floodwall (4,100 FT.)
                        Concrete                      5,800         C.Y.          200.00       1,160,000                   0
                        Steel                        629400          LB.            0.50         3312200                   0
                        Fill                         11,100         C.Y.            3.00          33,300                   0
                        Seed & Sod                   89,600         S.Y.            0.45          40,320                   0
                        Excavation                   10,700         C.Y.            2.20          23,540                   0
                        Stripping                     4,400         C.Y.            2.50          11,000                   0
                        Clearing                         -                             -                -                  -
                        Closure Structure                           JOB             L.S.          80,000                   0
                             Sub-total                                                         1,787,980                   0
                        Contingencies                                               30%          536,020                   0
                             Sub-total                                                         2,324,000                   0
                        E&D                                                         15%          3489600                   0
                        S&A                                                           5%         116,200                   0
                             Sub-total                                                      $ 2L788,800            $89,400
                      Total Cost              (April 1980)                                              $2,878,200

                      AC - acre
                      C.Y. - cubic yard
                      LB. - pound
                      S.Y. - square yard
                      L.S. - lump sum

                                                                    E- 86

                                                          TABLE E-52

                                            TILGHMAN ISLAND COST SUMMARY
                                             FOR NONSTRUCTURAL PLAN TI-5
                                                        ( 15-Year Event)
                                                      - April 1980 Costs -

                 DESCRIPTION                                                                    COST

                 Residential

                   Utility Additions                                                           $    0
                         0 Units
                   Raising
                         0 Homes 11-411                                                             0
                         0 Homes 21-811                                                             0
                       _T Homes 41-011                                                              0
                   Rel6ic-ations
                         0 Homes                                                                    0
                         3 Trailers@ $8,000 ea.                                                 24,000
                   AcqtTis-ition & Demolition
                         I Home @ $8,500                                                        8,500
                                                                           Sub-total            32,500
                                                              Contingencies @d 20%              6,500

                                                                   E&D, S&A kLd 1%                 400
                                                                               Total            39,400

                 Commercial

                   Acquisition & Demolition
                         0 Structures                                                         $     0
                   Raisi@ng
                         0 Structures  11-411                                                       0
                       _7 Structures V-811                                                          0
                         0 Structures  41-011                                                       0
                   Rel6c-ations
                         0 Structures                                                               0
                   FlooTp-roofing
                         0 Structures                                                               0
                   Flood-w-all
                        5201 Length for 2 Structures                                            52,000
                                                                           Sub-iotal            52,000
                                                              Contingencies Cd 30%              15,600
                                                                                                67,600
                                                                        E&D Cd 15%              10,100
                                                                         S&A kLa 5%             3,400
                                                                               Total            81,100
                 Total Cost (April 1�80)                                                      $120,500

                                                            E- 87

                                                                TABLE E-53

                                                  TILGHMAN ISLAND COST SUMMARY
                                                    FOR NONSTRUCTURAL PLAN TI-6
                                                               (40-Year Event) -
                                                              April 1980 Costs -

                      DESCRIPTION                                                                       COST

                      Residential

                        Utility Additions
                              0 Units                                                                 $      0
                        Raising
                              5 Homes 11-411                                                           44,800
                              0 Homes 21-811                                                                 0
                              _F Homes 41-011                                                                0
                        Rel6c-ations
                              I Home                                                                   31,000
                              -7 Trailers                                                              40,000
                        Acqdgiltion & Demolition
                              12 Homes                                                                563500
                                                                                 Sub-total            679,300
                                                                    Contingencies @ 20%               135,900
                                                                                                     __315,200
                                                                         E&D, S&A Ld 1%                 8,200
                                                                                      Total         $-F23,400

                     Commercial

                        Acquisition & Demolition
                              0 Structures                                                           $       0
                        Raising
                              2 Structures 11-411                                                      17,500
                              _T Structures V-811                                                            0
                              0 Structures 41-011                                                            0
                        Rel6c-ations
                              0 Structures                                                                   0
                        Floodp-roofing -
                              I Structure                                                               4,650
                        FlooiFw-all
                              910' Length for 4 Structures                                            115,500
                                                                                 Sub-total          -T3-7,650
                                                                    Contingencies (d 30%               419300
                                                                                                      1.79,950.
                                                                              E&D @a 15%               26,850
                                                                                S&A @ 5%                8,950
                                                                                      Total           214,750

                     Total Cost (April 1980)                                                       $1,038,150

                                                                  E-88

                                                              TABLE E-54

                                               TILGHMAN ISLAND COST SUMMARY
                                                FOR NONSTRUCTURAL PLAN TI-7
                                                           ( 90-Year Event)
                                                          -April 1980 Costs-

                 DESCRIPTION                                                                           COST

                 Residential

                    Utility Additions
                          0 Units                                                                 $        0
                    Raising
                          7 Homes 11-411                                                              66,500
                          5- Homes 21-811                                                             49,400
                         _T Homes 41-011                                                                   0
                    RelcZa-tions
                          I Home                                                                      31,000
                          8 Trailers                                                                  64,000
                    AcqtTis-ition & Demolition
                         27 Homes                                                                 1,267,000
                                                                                Sub-total         1,477,900
                                                                  Contingencies (d 20%              295@600
                                                                                                  1,773,500
                                                                       E&D, S&A @ 1%                  17 700
                                                                                     Total     $  1,790',600-

                 Commercial

                    Acquisition & Demolition
                          2 Structures                                                          $   390,000
                    Raising
                          0 Structures 11-411                                                              0
                            Structures 21-811                                                         19,300
                            Structures 41-011                                                              0
                    Rel6c-ations
                      .   0 Structures                                                                     0
                    Floojp-roofing
                          I Structure                                                                   4,700
                    Floojw-all
                         1,560' Length  for 6 Structures                                            2159150
                                                                                Sub-total           629,150
                                                                  Contingencies @ 30%               188,750
                                                                                                    817,900
                                                                            E&D Ld 15%              122,700
                                                                              S&A (d 5%               40,900
                                                                                     Total          981,500

                 Total Cost (April 1980)                                                          $2,772,100

                                                                E_ 99

                                                                         TABLE E-55

                                                 TILGHMAN ISLAND FLOOD CONTROL ALTERNATIVES:
                                                    ESTIMATES OF ANNUAL EQUIVALENT CHARGES
                                                                       April 1980 Costs -

                                                       .Interest &
                                                      Amortization        Interest &          Operation &                Total Annual
                       Plan           First Cost         Factor*         Amortization       Maintenance Costs        Equivalent Charges
                       TI-1         $7,369,800           0.07132         $ 525P600                $ 45p3OO                 $570,900
                       TI-2          2,342,400           0.07132            167,100                  14,500                  181,600
                       TI-3          8,896,360           0.07132            634,500                  54,800                  689,300
                       TI-4          21878,200           0.07132            205,300                  17$900                  2231200
                       TI-5             120$500          0.07361               8,900                      0                     8,900
                       TI-6          1,038,150           0.07361             76,400                       0                   760400
                       TI-7         $2,772,100           0.07361          $204,100               $        0                $204,100

                        The Interest and Amortization Factor is based on an economic life of 100 years for structural projects
                       (50 years for nonstructural projects) and a Federal interest rate of 7 1/8 percent (FY 1980).

                          Estimates of operation and maintenance costs were based on one percent of the construction costs.

               VIRGINIA COMMUNITIES

               The Norfolk District developed cost estimates for both structural and nonstructural flood
               control alternatives for each of the five communities examined. Costs for structural
               alternatives were initially developed to reflect July 1979 price levels. However, with the
               reanalysis conducted in 1983, costs were updated to reflect January 1983 price levels.

               Estimates of annual equivalent costs were also updated. They were computed using an
               interest rate of 7-7/8 percent (Fiscal Year 1983) and included amortization and operation
               and maintenance costs. A 100-year economic life was assumed in evaluating plans
               associated with levees, floodwalls, and bulkheads; a 50-year period of analysis was used
               in estimating annual equivalent costs for all nonstructural alternatives. For a more
               complete description of the plans and the evaluation process, refer to Appendix B - Plan
               Formulation, Assessment, and Evaluation.

               CAPE CHARLES

               Structural

               The cost of the measures undertaken by the SCS was about $320,000. The cost of the
               proposed dikes and flapgates in the concrete outflow sewers was not estimated.

               Nonstructural

               The cost of the nonstructural plans considered varied from $103,000 to $502,000,
               depending on the stage to which protection was provided and the nonstructural measures
               adopted. Table E-56 provides details of the nonstructural measures considered while
               Table E-57 presents annualized costs of the plans.

                                                         E- 91

                                                                 TABLE E-56

                                              NONSTRUCTURAL MEASURES CONSIDERED
                                                     FOR CAPE CHARLES, VIRGINIA

                      PLAN                                                                                        COSTS

                          A        PROTECTION TO 100-YEAR FLOOD STAGE-ELEVATION 8.0
                                   1.   Raise 11 residences and 2 commercial establishments                    $230,400
                                   2.   Remove household mechanical and electrical
                                        equipment from basement of 15 additional
                                        residences. Relocate to a first-floor utility
                                        room addition.                                                           168,000
                                   3.   Construct temporary closures for basement windows
                                        of 15 residences.                                                         38,000
                                          Sub-Total                                                            @436,400
                                          E&D @ 8%                                                                34,900
                                          S&A (d 7%                                                               30,500
                                                                 TOTAL                                         @501,800
                                                                 Rounded                                       $502,000

                          B        PROTECTION TO 100-YEAR FLOOD STAGE-ELEVATION 8.0
                                   1.   Same as for Plan A.                                                    $230,400
                                   2.   Same as for Plan A.                                                      168,000
                                   3.   Assume that as a result of item 2 there would be no
                                        further damage in the basements of the 15 residences,
                                        thereby eliminating the need for temporary
                                        window closures in basements..                                                -0-
                                          Sub-Total                                                            5398,400
                                          E&D Ld 8%                                                               31,900
                                          S&A @ 7%                                                               27 900
                                                                 TOTAL
                                                                 Rounded                                       $458,000

                          C        PROTECTION To 35-YEAR FLOOD STAGE-ELEVATION 7.0
                                   1.   The first floor of all structures is at elevation 7
                                        or higher. However, there are -8 residences whose
                                        first floor is at elevation 9 but whose basement
                                        windows are at elevation 6. Remove household,
                                        mechanical, and electrical equipment from basement
                                        of these 9 residences. Relocate to a first-floor
                                        utility addition.                                                        $89,700
                                   2. Construct temporary closures for basement windows
                                        of & residences.                                                          20,300
                                          Sub-Total                                                            @110'000
                                          E&D @ 8%                                                                 8,800
                                          S&A @ 7%                                                                 7,700
                                                                 TOTAL                                         @126,500
                                                                 Rounded

                                                                    E- 92

                                                     TABLE E-56 (cont'd)

                PLAN                                                                                   COSTS

                    D       PROTECTION To 35-YEAR FLOOD STAGE-ELEVATION 7.0

                            1.   Same as for Plan C.                                                   $89,700
                            2.   Assume that as a result of item I there would be
                                 no further damage in the basements of the 8 residences,
                                 thereby eliminating the need for temporary window
                                 closures in basement.                                                     -0-
                                   Sub-Totai                                                            89,700
                                   E&D (d 8%                                                             7,200
                                   S&A Ld 7%                                                             6,300
                                                         TOTAL                                       :>403,200
                                                         Rounded                                     $103,000

                                                            E- 93

                                                                               TABLE E-57

                                                CAPE CHARLES NONSTRUCTURAL PLAN AVERAGE ANNUAL COSTS
                                                                  (Based on January 1983 Price Levels)

                                                                                       ANNUAL CHARGES
                                                                                           AMORTIZA-
                                                      COST SHARING             INTEREST      TION AT           O&M
                       PLAN           COST          FEDERAL LOCAL              AT 7 718%       0.182%        ATI%        XOTAL

                          A          $502,000       $402P000.    $100,000        $39,500         .$900       $5,000      $45p4OO

                          B          458,000         366,000       92pOOO         36pI00           800         4p6OO      41p500

                          C           127,000        102P000       25,000         10,000           200         lp300      11,500
             tq           D          $103pOOO       $ 82pOOO     $21,000         $8,100          $200        $1,000       $9,300

                       NOTE: Estimates assume a 50-year project life.

                HAMPTON ROADS

                Structural

                No estimates of cost were prepared for the four sites on the Lafayette River since they
                were not considered feasible. The Hague area sites on the Elizabeth River, examined in
                the 1962 study, need to be reviewed to determine economic feasibility. In the case of
                the Hampton-Fox Hill area, an estimate of cost was made for building a gravity f loodwall
                to protect most of the area selected for detailed analysis as an alternative to employing
                nonstructural methods. Protection to the 100-year level would cost $3,184,000. Not
                included in the estimate were the costs of 10 closures, 4 of which would be across
                streams and 6 across roads, plus the possibility of the need for sheet piling due to the
                marshy condition of the soil. The cost of a pumping station was also not considered.

                Nonstructural

                The estimates of cost for raising the houses to the 100-year level and 25-year level are
                $2,065,000 and $904,000, respectively. Table E-58 provides details for each of the
                measures considered while Table E-59 presents average annual cost computations for
                each of the plans.

                                                         E-95

                                                                          TABLE E-58

                                        STRUCTURAL AND NONSTRUCTURAL MEASURES CONSIDERED
                                                                 FOR HAMPTONp VIRGINIA

                         PLAN                                                                                                      COSTS

                            A           PROTECTION TO 100-YEAR FLOOD STAGE-ELEVATION 8.5

                                        Structural Measures

                                        Floodwall to encompass 50 structures

                                        Floodwall height (ground elevation - 3.5)
                                              Below ground                                                      I ft.
                                              Above ground to elevation 8.5                                     5 ft.
                                              Freeboard                                                         3 ft.
                                                                 Total                                          9 ft.
                                                                 Length                                    6200 ft.
                                          Sub-Total                          Cost       6,200 ft. X $446.50/ft.              $2,768,300
                                          E&D @ 8%                                                                               221,500
                                          S&A @ 7%                                                                               1939800
                                        Total                                                                                43,183,600
                                        Rounded                                                                              $3,184,000

                            B           PROTECTION TO 100-YEAR FLOOD STAGE-ELEVATION 8.5

                                        Nonstructural Measures

                                              Raise 8 structures 811                                                            $296,500
                                              Raise 17 structures 21                                                             504,500
                                              Raise 25 structures 21-810                                                         698,700
                                              Raise 9 structures 41                                                              295950
                                                Sub-Total                                                                    @1,795,200
                                                E&D (d 8%                                                                        143,600
                                                S&A @ 7%                                                                         125J00
                                              Total Cost of raising 59 structures                                            @2,%4,500
                                              Rounded                                                                        @2,065,000

                            C           PROTECTION TO 25-YEAR FLOOD STAGE-ELEVATION 6.9

                                        Nonstructural Measures

                                              Raise 25 structures 11-411                                                        @572,100
                                              Raise 9 structures 21                                                              213,700
                                                Sub-Total                                                                       @785,800
                                                E&D (d 8%                                                                          62,900
                                                S&A (d 7%                                                                          55000
                                              Total cost of   raising   34 structures                                           $3:6-@S,;Fo
                                              Rounded                                                                           @904,000

                                                                              E-96

                                                                               TABLE E-59

                                                         HAMPTON AVERAGE ANNUAL COST COMPUTATION
                                                               (Costs Based on January 1983 Price Levels)

                                                                                           ANNUAL CHARGES
                                                                                           AMORTIZA-
                                                      COST SHARING             INTEREST      TION AT           O&M
                       PLAN              COST       FEDERAL LOCAL              AT 7 7/8%       0.182%        ATI%         TOTAL

                       Structural,
                       100-year      $3,184,000   $2,547,000    $637,000       $250,700         $5,800       $95,500    $352,000

                       Nonstructural
                       100- year      2,065,000    1,652,000     4139000        162,600          3,800        20,600     187,000

                       Nonstructural
                       25- year       $904,000      $723,000    $181,000        $71,200         $1,600        $9,000     $81,800

                       NOTE: Estimates assume a 50-year project life.

                     POQUOSON

                     Structural

                     No estimates of cost were prepared for any of the structural plans. None of them were
                     considered practical or economically feasible. The only exception was the provision of a
                     flood proofed building which could be used as shelter in the event of a major tidal flood
                     which would inundate Poquoson. Since the roads are at a low elevation, it would be
                     necessary to investigate raising them so that the public could reach the flood proofed
                     structure well in advance of a catastrophic flood. The Poquoson Middle School is one
                     possibility.

                     Nonstructural

                     The estimates of cost for the various nonstructural plans of protection varied from
                     $199,000 to over $8.7 million. No plans were prepared for POQ-1 since it was found that
                     the average annual damage totalled only $1,240 for the 100-year tidal flood stage and only
                     $2,600 for the 500-year level. Table E-60 provides details of the nonstructural measures
                     considered while Table E-61 presents annualized costs of the plans.

                                                              E-98

                                                                TABLE E-60

                                         NONSTRUCTURAL MEASURES CONSIDERED FOR
                                                         POQUOSON, VIRGINIA

                  PLAN                                                                                            COSTS

                  POQ-1        Since the average annual damages in this area are less
                               than $1,240 at the 100-year tidal flood stage, further
                               study of this area is not warranted.
                  POQ-2        RELOCATE 96 STRUCTURES IN TRAILER COURT TO A NEW LOCATION: 1

                               4 trailers with permanent foundation                                            $ 65,700
                               92 trailers on wheels                                                             622,500
                                   Sub-Total                                                                     688,200
                                   E&D (a 8%                                                                      55,100
                                   S&A @ 7%                                                                       482200
                               Total                                                                           $ 791,500
                               Rounded                                                                         $792,000

                  POQ-3        PROTECTION TO 100-YEAR FLOOD STAGE-ELEVATION 8.5

                               Raise 3 structures 811                                                          $ 76,600
                               Raise 33 structures 11-411                                                        5729800
                               Raise 9 structures 21-811                                                         227,000
                                   Sub-Total                                                                     876,400
                                   E&D @ 8%                                                                       709100
                                   S&A Cd 7%                                                                      61,300
                               Total cost of raising 45 structures                                           @T_,007,800
                               Rounded                                                                       $1,008,000

                  POQ-3        PROTECTION To 25-YEAR FLOOD STAGE--ELEVATION 7.0

                               Raise 9 structures It                                                             173,000
                                   E&D @ 8%                                                                       13,800
                                   S&A Cd 7%
                               Total cost of raising 9 structures                                                198,900
                               Rounded                                                                           199,000

                  POQ-4        PROTECTION TO 100-YEAR FLOOD STAG E--ELEVATIO N 8.5

                               Raise 68 structures gig                                                       $1,040,300
                               Raise 133 structures 11-411                                                     2,225,800
                               Raise 115 structures 21-811                                                     2,660,900
                               Raise 60 structures 31-411                                                      1,470,300
                               Raise 7 structures 4g-811                                                         2157000
                                   Sub-Total                                                                 $-7-,612,300
                                   E&D @ 8%                                                                      609,000
                                   S&A @ 7%                                                                      532900
                               Total cost of raising 383 structures                                          @8,754"200
                               Rounded                                                                       $8,754,000

                                                                  E_ 99

                                                            TABLE E-60 (Cont'd)

                      PLAN                                                                                     COSTS

                      POQ-4       PROTECTION To 25-YEAR FLOOD STAG E--ELEVATIO N 7.0

                                  Raise 115 structures 11-411                                             $2,036,000
                                  Raise 60 structures 21                                                     IVI89,000
                                  Raise 7 structures 31-411                                                    168,200
                                      Sub-Total                                                             @3,393,200
                                      E&D La 8%                                                                271,500
                                      S&A @ 7%                                                                 237,500
                                  Total cost of raising 182 structures                                    $3,902,200
                                  Rounded                                                                 $3,902,000

                      POQ-4       PROTECTION TO 25-YEAR FLOOD STAGE-ELEVATION 7.0

                                  Purchase and demolish 58 below average value residences
                                  in poor condition and raise remaining 124 structures to
                                  25-year flood stage-Elevation 7.0
                                  Land, building and resettlement                                           $1,752,200
                                  Acquisition                                                                  386,900
                                      Sub-Total                                                             $2,139,100
                                  Demolition and site reclamation                                              112,000
                                  Raise structures 11-419                                                      819,000
                                  Raise structures 21                                                        1,569,600
                                  Raise structures Y-411                                                       97,700
                                      Sub-Total                                                           $2,598,300
                                      E&D (d 8%                                                                207,900
                                      S&A @ 7%                                                                 181,900
                                  Total cost of purchasing and demolishing
                                   58 structures and raising 124 structures                               $5,127,200
                                  Rounded                                                                 $5,127,000

                      POQ-4       PROTECTION TO 10-YEAR FLOOD STAGE--ELEVATION 5.8

                                  Purchase and demolish 25 below average value residences
                                  in poor condition that are below the level of the 10-year
                                  flood stage-Elevation 5.8

                                  Land, building and resettlement                                             $755,300
                                  Acquisition                                                                  166,800
                                      Sub-Total                                                                922,100
                                  Demolition and site reclamation                                              48,300
                                      E&D @ 8%                                                                   3,900
                                      S&A @ 7%                                                                   3,400
                                  Total cost of purchasing and demolishing
                                   25 structures                                                             $977,700
                                  Rounded                                                                    $978,000
                              1 The structures would be relocated to an area at least I-foot above the
                                   1,000 year flood (elevation I I feet NGVD).

                                                                  E-100

                                                                                TABLE E-61

                                                POQUOSON AVERAGE ANNUAL NONSTRUCTURAL COST COMPUTATION
                                                                 (Costs Based on January 1983 Price Levels)

                                                                                         ANNUAL CHARGES

                                                                                             AMORTIZA-
                                  CONSTRUCTION          COST SHARING            INTEREST       TION AT          O&M
                        PLAN            COST          FEDERAL LOCAL             AT 7-7/9%       0.182%         AT 1%      TOTAL

                        POQ-2         $ 792,nnn      $ 634,nnn $ 158,non        $62,400.       $ 1,4on        $7,900       $71,700

                        POQ-3         1.nm,nno         8%,w        202,nno         79,400        4800          10,100        91,300
              W
               A        POQ-3            199,nnn        159,nnn     409000         15,700           400         2,000        189100

                        POQ-4         8,754,nnn      7,nO3,000   1,751,000        689140n        159900        87,500      792,800

                        POQ-4         3,gn2,nnn      3,122,nno     7809noo        307,300        7,100         39,000      3539400
                        POQ-4*        5,127,nnn      4,102,noo   1,025,000        322,5no        7,400         51,300     381,200**
                        POQ-4***        978,nnn      $ 782,non  $ 196,oon       $421000        $ 19000        $9,800        52,800**

                        *Purrhase and demolish 58 structures.   Raise 124 structures.
                        **Exrludes interest and amortization on cost of resettlement.
                        ***Purchase and demolish 25 structures.

                        NOTE: Estimates assume a 50-year project life.

                        TANGIER ISLAND

                        Structural

                        The cost of protecting the West Ridge, Main Ridge, and Canton Ridge by concrete
                        cantilever walls to the level of the I 00-year tidal flood stage, based on Corps frequency
                        data, was estimated at over $24 million. The cost of protecting the school on Tangier
                        Island to the level of the standard project tidal flood, (elevation 13) as estimated by the
                        Corps, was $1,697,000.

                        It was not considered practical to provide long walls to protect single line houses and other
                        structures along the three ridges on Tangier Island from tidal flooding. The environmental
                        agencies would undoubtedly object to crowding the marshes, and the people on the island
                        would not care to have the small amount of useable land removed for this purpose.
                        Nevertheless, a preliminary estimate of the cost of such structural measures was
                        prepared. Each of the three walls around the three ridges was designed to the level of the
                        100-year tidal stage plus freeboard. Top of wall'elevations; for each ridge were estimated
                        to be I I feet. The height of the wall above ground for West Ridge and Main Ridge was
                        estimated to be 7 feet while the wall height around Canton Ridge was estimated to be
                        about I-foot lower.

                        A cantilever wall was adopted in order to utilize the least amount of land. It would
                        include a 15-f oot stee I sheet pile cutoff wall. About 2,600 feet would be required for the
                        Canton Ridge, 7,200 feet would be required for the West Ridge, and approximately the
                        same amount for the Main Ridge. Table E-62 presents an estimate of cost. No estimate
                        based on VIMS frequency was necessary since the 100-year elevation is close to the level
                        of the ground.

                                                                       TABLE E-62.

                                      COST OF FLOODWALLS ON TANGIER TO THE 100-YF-AR CORPS
                                                                 TIDAL FLOOD STAGE
                                                        (Based on January 1983 Price Levels)

                                                                                       COST
                        ITEM                     UNIT          AMOUNT              PER UNIT                  'rOTAL COST

                        Sheet piling             sq. ft.         272,000             $ 16.50                    $4,488,000
                        Forms                    sq. ft.         333,000                   1.65                       549,450
                        Concrete                  C.Y.             19,584                440.00                   8,616,960
                        Closures                  L.S.                  10                  Job                       220,000
                                       Subtotal                                                                 $139874,410
                        Contingencies Cd 20%                                                                      2,774,880
                                       Subtotal                                                                 $16,649,290
                        E&D @ 8%                                                                                  1,331,940
                        S&A @ 7%                                                                                  1,165,450
                                       Subtotal                                                                   191146,680
                                       TOTAL                                                                    $24,891,000

                        NOTE: Costs were updated from July 1979 to January 1983 by a factor of 1.30.

                                                                         E-102

                  A plan was developed for protecting a building to be used as a shelter. There are three
                  structures that might be suitable for this purpose-the Methodist Church, the'recreation
                  center, and the school. There would be difficulty in flood proofing these structures. Some
                  land, houses, and roads may also be affected.

                  The school appeared to offer the most practical alternative. According to the principal in
                  1980, Mr. Harold G. Wheatley, the emergency plans call for the people of Tangier to go to
                  the school. The building does have flood preparation facilities.

                  In order to reduce the amount of area required for the protection structure, a cantilever
                  concrete wall was envisaged. Sheet piling would be required below ground level. It would
                  rise to a height of 12.5 feet above ground level. Nine hundred feet of wall would encircle
                  the school and be a reasonable distance from it. Table E-63 provides a cost estimate for
                  this alternative.

                                                               TABLE E-63

                                          COST OF PROTECTING THE TANGIER SCHOOL
                                                 (Based on January 1983 Price Levels)

                                                                                COST
                  ITEM                 UNIT            AMOUNT               PER UNIT             TOTAL COST

                  Sheet piling       sq. ft.               15,200                516.50                $250,800
                  Forms              sq. ft.               26,850                   1.65                  44,300
                  Concrete               C.Y.                1,429               440.00                  628,760
                  Closures               L.S.                 L.S.                   Job                  22,000

                    Subtotal                                                                         $   945,860

                  Contingencies @ 20%                                                                    189,U0

                    Subtotal                                                                         $1@135,030

                  E&D @ 8%                                                                                90,800
                  S&A @ 7%                                                                                79,450

                    Subtotal                                                                         $1,305,280

                    TOTAL                                                                            $1,697,000

                  NOTE: A factor of 1.30 was used to update costs from July 1979 to January 1983.

                                                                 E- 103

                       r@onstructural

                       The cost of the nonstructural plans considered vary from $180,000 to $7.78 million,
                       depending on the stage to which protection is provided. Table E-64 provides details for
                       the nonstructural measures considered while Table E-65 presents estimates of average
                       annual costs f or the nonstructural plans.

                                                                   TABLE E-64

                                            NONSTRUCTURAL MEASURES CONSIDERED FOR
                                                              TANGIER, VIRGINIA
                                                     (Based on January 1983 Price Levels)

                       PLAN                                                                                         COSTS

                           A       PROTECTION TO 100-YEAR FLOOD STAGE-ELEVATION 8.5
                                     (CORPSFREQUENCY)

                                   Raise 5 structures 0-811                                                     $ 57,800
                                   Raise 46 structures 11-411                                                     702,810
                                   Raise 121 structures 20-811                                                  2,322,880
                                   Raise 125 structures 31-411                                                  2,702,100
                                   Raise 23 structures 41-811                                                     646,100
                                   Raise 9 structures 51-411                                                      259,400
                                   Raise 2 structures 61-811                                                        75,400
                                        Sub-Total                                                               6,766,490
                                        E&D @8%                                                                   541,320
                                        S&A @ 7%                                                                  4739650
                                   Total cost of raising 331 structures                                        $7,7819460
                                   Rounded                                                                     @7,781,000

                           B       PROTECTION To 25-YEAR FLOOD STAG E--ELEVATIO N 7.0
                                      (CORPSFREQUENCY)

                                   Raise I structure 11-411                                                    $1,6849780
                                   Raise 5 structures 21-011                                                    2,066,640
                                   Raise 3 structures 31-411                                                      521t900
                                   Raise 9 structures 41-011                                                      205,570
                                   Raise 2 structures 51-411                                                        66P 120
                                        Sub-Total                                                               4,5451010
                                        E&D @8%                                                                   363,600
                                        S&A (d 7%                                                                 318,150
                                   Total cost of raising 280 structures                                        $5,226,760
                                   Rounded                                                                     @5,227,000

                                                                     E- 104

                                                       TABLE E-64 (cont'd)

                 PLAN                                                                                      COSTS

                     C       PROTECTION TO 100-YEAR FLOOD STAG E--ELEVATIO N 4.1
                               (VIMS FREQUENCY)'

                             Raise 9 structures 11-411                                                $ 119,130
                             Raise 2 structures 21-010                                                     37,430
                                  Sub-Total                                                               156,560
                                  E&D La 8%                                                                 12,520
                                  S&A @ 7%                                                                  10,960
                             Total cost of raising 11  structures                                      $--180,040
                             Rounded                                                                  $ 180,000

                   Protection to elevation 4.1 provides protection to 4.2-year flood stage - Corps
                 frequency.

                                                             E-105

                                                                                          TABLE E-65

                                                         ANNUAL COSTS OF STRUCTURAL AND NONSTRUCTURAL PLANS
                                                                                    ON TANGIER ISLAND
                                                                            (Based on January 1983 Price Levels)

                                                                                                      ANNUAL CHARGES ($19000)
                                                                                                        AMORTIZA-
                           PLAN        CONSTRUCTION COST SHARING ($IvOOO) INTEREST                        TION AT                  I
                           (si,nnn)      COST (si,nnn) FEDERAL LOCAL                      AT 7-7/8%        n. 182%            O&M         TOTAL

                           Structural
                           Inn-yr(C)         $24,891          $19,913       $4,978         $19960.2        $ 45.3        $    497.8      $2,503.3
                           Stand. Fjoj.
                           Fid. (C)             1,697           It358           339            133.6             3.1           33.9         170.6

                           Nonstrurtural
               C>          inn-yr(C)            7,781           6t225         19556           612.8             14.2           77.8         704.8

                           25-yr(C)             59227           4,182         Itn45           411.6              9.5           52.3         473.4
                           I nn-yr(V)        s ign             $   144      $ 36                14.2          $ 0.3          $ 1.8       $    16.3

                           I Structural O&M @ 2%, Nonstructural O&M @ 1%.
                           2 For protertion of the Tangier School.

                           NOTE:      C      Frequency based on Corps estimate.
                                      V     Frequency based on VIMS estimate.

                WEST POINT

                Structural

                No estimates of cost were prepared for any structural plans. None were considered to be
                practical or economically feasible.

                Nonstructural

                In the study area which includes 15th Street and below, the estimates of cost for the
                nonstructural plans varied from $90,000 to $1,048,000 depending on whether the stage-
                frequency curve was based on Corps or VIMS estimates. Table E-66 provides details for
                the nonstructural measures considered while Table E-67 presents the average annual costs
                for the nonstructural tidal flood protection plans considered.

                                                        E- 107

                                                               TABLE E-66

                             NONSTRUCTURAL MEASURES CONSIDERED FOR WEST POINT, VIRGINIA

                      PLAN                                                                                  COSTS

                          A    PROTECTION TO THE 100-YEAR FLOOD STAGE - ELEVATION 8.5
                                 (CORPSFREQUENCY)

                               Raise 19 structures 0.51                                                 $   309,400
                               Raise 7 structures 1.51                                                      139,100
                               Raise 2 structures 2.51                                                      48,900
                               Raise 12 structures 3.51                                                     316,400
                               Raise 3 structures 4.51                                                      97Y700
                                   Sub-Total                                                                9119500
                                   E&D (d 8%                                                                72,900
                                   S&A @ 7%                                                                 639800
                               Total cost of raising 43 structures                                      $1,048,200
                               Rounded                                                                  :'>-1,048,000

                         B     PROTECTION TO THE 25-YEAR FLOOD STAGE - ELEVATION 7.0
                                (CORPSFREQUENCY)

                               Raise 2 structures 11                                                     $ 359100
                               Raise 12 structures 21                                                       27%600
                               Raise 3 structures 31                                                        98500
                                   Sub-Total
                                   E&D @ 8%                                                                 32,300
                                   S&A @d 7%                                                                28v300
                               Total cost of raising 17 structures                                      $ 464,800
                               Rounded                                                                  $ 465,000
                         C     PROTECTION TO TH.@ 100-YEAR FLOOD STAGE - ELEVATION 6.0
                                (VIMS FREQUENCY)

                               Raise 12 structures 11                                                    $223,200
                               Raise 3 structures 21                                                        72,300
                                   Sub-Total                                                             $295,500
                                   E&D (d 8%                                                                23,600
                                   S&A (d 7%                                                                202700
                               Total cost of raising 15 structures                                          3399800
                               Rounded                                                                      340,000

                                                                 E- 108,

                                             TABLE E-66 (cont'd)

               PLAN                                                                    COSTS
                  D    PROTECTION TO TH@25-YEAR FLOOD STAGE - ELEVATION 5.0
                        (VIMS FREQUENCY)

                       Raise 3 structures It                                         $78,500
                          E&D (d 8%                                                     6,300
                          S&A @ 7%                                                      5,500
                       Total cost of raising 3 structures                           $ 35, 3 0 0
                       Rounded                                                       490,000
               I Protection to elevation 6.0 provides protection to 12-year flood stage-
            Corps frequency.
               2 Protection to elevation 5.0 provides protection to 6-year flood stage-
             Corps frequency.

                                                   E- 109

                                                                              TABLE E-67

                                             WEST POINT AVERAGE ANNUAL NONSiRUCTURAL COST COMPUTATION
                                                                  (Based on January 1983 Price Levels)

                                                                                      ANNUAL CHARGES

                                                                                           AMORTIZA-
                               CONSTRUCTION COST SHARING                      INTEREST       TION AT                       O&M
                      PLAN            COSTS        FEDERAL LOCAL              AT 7-718%       9.182%         ATI%        TOTAL

                      too-
                      year(C)     $1,048,000        $838,000    $210,000        $82V500        $1,90o       $10,500      $94,900

                      25-
                      year(C)        465V000         3721000      939000         369600           Soo         4,700       42,100

                      100-
                      year(V)        3400000         2729000      681000         260800           600         3,400       30,800

                      25-
                      year(V)        $901000         $72,000    $18,000         $7,100        $   200       $ 900        $8,200

                      NOTE: C      Corps Estimate, V = VIMS Estimate

                                            CHESAPEAKE BAY

                                          TIDAL FLOODING STUDY

                                               APPENDIX F

                                               ECONOMICS

                                          Department of the Army
                                    Baltimore District, Corps of Engineers
                                            Baltimore, Maryland
                                              Septembir 1984

                                       CHESAPEAKE BAY TIDAL FLOODING STUDY

                                                 APPENDIX F - ECONOMICS

                                                    TABLE OF CONTENTS

                 Item                                                                                Page

                 Introduction                                                                         F-1
                 Methodology                                                                          F-1
                     Benefits                                                                         F-2
                       Recreation Benef its                                                           F-2
                       Intensif ication Benefits                                                      F-2
                       Inundation Reduction Benefits                                                  F-2
                       Location Benefits                                                              F-2
                       Employment Benefits                                                            F-2
                     Costs                                                                            F-3
                 Maryland Flood-Prone Communities                                                     F-3
                     Cambridge, Maryland                                                              F-3
                       Without Project Conditions                                                     F-3
                       Future Growth                                                                  F-5
                       Damages                                                                        F-5
                       With Project Conditions                                                        F-5
                     Crisfield, Maryland                                                              F-6
                       Without Project Conditions                                                     F-6
                       Future Growth                                                                  F-6
                       Damages                                                                        F-9
                       With Project Conditions                                                        F-9
                     Pocomoke City, Maryland                                                         F-11
                       Without Project Conditions                                                    F-11
                       Future Growth                                                                 F-1 I
                       Damages                                                                       F-11
                       With Project Conditions                                                       F-13
                     Rock Hall, Maryland                                                             F-13
                       Without Project Conditions                                                    F-13
                       Future Growth                                                                 F-16
                       Damages                                                                       F-16
                       With Project Conditions                                                       F-16
                     Snow Hill, Maryland                                                             F-17
                       Without Project Conditions                                                    F-17
                       Future Growth                                                                 F-20
                       Damages                                                                       F-20
                       With Project Conditions                                                       F-20
                     St. Michaels, Maryland                                                          F-22
                       Without Project Conditions                                                    F-22
                       Future Growth                                                                 F-22
                       Damages                                                                       F-22
                       With Project Conditions                                                       F-24
                     Tilghman Island, Maryland                                                       F-24
                       Without Project Conditions                                                    F-24
                       Future Growth                                                                 F-26
                       Damages                                                                       F-26
                       With Project Conditions                                                       F-26

                                                   TABLE OF CONTENTS (Cont1d)

                      Item                                                                            Page

                     Virginia Flood-Prone Communities                                                 F-28
                         Cape Charles, Virginia                                                       F-28
                           Without Project Conditions                                                 F-28
                           Future Growth Without Project                                              F-31
                           -Stage-Damage Relationship Without Project                                 F-31.
                           Affluence Factor Benefits                                                  F-34
                           Inundation Reduction Benefits                                              F-34
                           Average Annual Costs and Benefits                                          F-34
                         Hampton Roads, Virginia                                                      F-35
                           'Without Project Conditions                                                F-35
                           Future Growth Without Project                                              F-36
                           Stage-Damage Relationship Without Project                                  F-36
                           Benef its                                                                  F-39
                           Average Annual Costs and Benefits                                          F-40
                         Poquoson, Virginia                                                           F-40
                           Without Project Conditions                                                 F-40
                           Future Growth Without Project                                              F-45
                           Stage-Damage Relationship Without Project                                  F-45
                           Affluence Factor Benefits                                                  F-47
                           Inundation Reduction Benefits                                              F-47
                           Average Annual Costs and Benefits                                          F-47
                         Tangier Island, Virginia                                                     F-60
                           Without Project Conditions                                                 F-60
                           Future Growth Without Project                                              F-60
                           Stage-Damage Relationship Without Project                                  F-60
                           Affluence Factor Benefits                                                  F-63
                           Inundation Reduction Benefits                                              F-63
                           Average Annual Costs and Benefits                                          F-63
                         West Point, Virginia                                                         F-68
                           Without Project Conditions                                                 F-68
                           Future Growth Without Project                                              F-68
                           Stage-Damage Relationship Without Project                                  F-68
                           Affluence Factor Benefits                                                  F-72
                           Inundation Reduction Benefits                                              F-72
                           Average Annual Costs and Benefits                                          F-73

                                                            LIST OF FIGURES

                   Number                                             Title

                    F-1                 Cape Charles Flood Area                                               F-30
                    F-2                 Cape Charles Stage-Damage Relationship                                F-32
                    F-3                 Hampton-Fox Hill Area Stage-Damage Relationship                       F-37
                    F-4                 Poquoson Flood Area                                                   F-43
                    F-5                 Poquoson Existing Land Use                                            F-44
                    F-6                 Poquoson Future Land Use                                              F-46
                    F-7                 Poquoson Area One Stage-Damages                                       F-48
                    F-8                 Poquoson Area Two Stage-Damages                                       F-49
                    F-9                 Poquoson Area Three Stage-Damages                                     F-50
                    F-10                Poqouson Area Four Stage-Damages                                      F-51
                    F-11                Tangier Island Stage-Damage Relationship                              F-61
                    F-12                West Point Flood Area                                                 F-69
                    F-13                West Point Stage-Damage Relationship                                  F-70

                                                             LIST OF TABLES

                   Number                                             Title                                   Page

                    F-1                 Cambridge Flood Plain Inventory                                         F-4
                    F-2                 Summary Economic Analysis of Alternative Plans
                                           f or Cambridge                                                       F-7
                    F-3                 Crisfield Flood Plain Inventory                                         F-8
                    F-4                 Summary Economic Analysis of Alternative Plans
                                           for Crisf ield                                                     F-10
                    F-5                 Pocomoke City Flood Plain Inventory                                   F-12
                    F-6                 Summary Economic Analysis of Alternative Plans
                                        . for Pocomoke City                                                   F-14
                    F-7                 Rock Hall Flood Plain Inventory                                       F-15
                    F-8                 Summary Economic Analysis of Alternative Plans
                                           for Rock Hall                                                      F-18
                    F-9                 Snow Hill Flood Plain Inventory                                       F-19
                    F-10                Summary Economic Analysis of Alternative Plans for
                                           Snow Hill                                                          F-21
                    F-11                St. Michaels Flood Plain Inventory                                    F-23
                    F- 12               Summary Economic Analysis of Alternative Plans for
                                           St. Michaels                                                       F-25
                    F- 13               Tilghman Island Flood Plain Inventory                                 F-27
                    F-14                Summary Economic Analysis of Alternative Plans
                                           for Tilghman Island                                                F-29
                    F-15                Cape Charles Average Annual Flood Damages                             F-33
                    F- 16               Cape Charles Average Annual Nonstructural Costs                       F-34
                    F- 17               Cape Charles Average Annual Nonstructural Benefits                    F-35
                    F-18                Cape Charles Net Nonstructural Benefits                               F-35
                    F- 19               Hampton-Fox Hill Area Average Annual Flood Damages                    F-38
                    F-20                Hampton Residential Flood Reduction Benefits                          F-39

                                                                      iii

                                                             LIST OF TABLES (Cont'd)

                        Number                                               Title                                   Page

                         F-21                Hampton Average Annual Costs                                            F-41
                         F-22                Hampton Average Annual Benefits                                         F-42
                         F-23                Poquoson Future Residential Land Use                                    F-45
                         F-24                Poquoson Area One Average Annual Flood Damages                          F-52
                         F-25                Poquoson Area Two Average Annual Flood Damages                          F-53
                         F-26                Poquoson Area Three Average Annual Flood Damages                        F-54
                         F-27                Poquoson Area Four Average Annual Flood Damages                         F-55
                         F-28                Poquoson Inundation Reduction Benefits                                  F-56
                         F-29                Poquoson Average Annual Nonstructural Costs                             F-57
                         F-30                Poquoson Average Annual Nonstructural Benefits                          F-58
                         F-31                Poquoson Net Nonstructural Benefits and B-C Ratios                      F-59
                         F-32                Tidal Stage-Damage Data for Tangier                                     F-62
                         F-33                Per Capita Income, BEA Economic Area 017                                F-63
                         F-34                Tangier Residential Flood Reduction Benefits                            F-64
                         F-35                Tangier Annual Costs of Structural and
                                                Nonstructural Plans                                                  F-65
                         F-36                Tangier Average Annual Benefits                                         F-66
                         F- 37               Tangier Economic Analysis                                               F-67
                         F-38                West Point Average Annual Flood Damages -
                                                Corps Frequency                                                      F-71
                         F-39                West Point Average Annual Flood Damages -
                                                VIMS Frequency                                                       F-72
                         F-40                West Point Inundation Reduction Benefits                                F-73
                         F-41                West Point Average Annual Nonstructural Costs                           F-74
                         F-42                West Point Average Annual Nonstructural Benefits                        F-75
                         F-43                West Point Net Nonstructural Benefits and
                                                B-C Ratios                                                           F-75

                                                                 LIST OF ANNEXES

                       Number                                                Title                                   Page

                         F-I                 Cambridge Stage-Damage and Average Annual Damage
                                                Computations
                         F-11                Crisfield Stage-Damage and Average Annual Damage
                                                Computations                                                       F-11-1
                         F-111               Pocomoke City Stage-Damage and Average Annual
                                                Damage Computations                                                F-111-1
                         F-IV                Rock Hall Stage-Damage and Average Annual Damage
                                                Computations                                                       F-IV-1
                         F-V                 Snow Hill Stage-Damage and Average Annual Damage
                                                Computations                                                       F-V-1
                         F-VI                St. Michaels Stage-Damage and Average Annual
                                                Damage Computations                                                F-VI-1
                         F-VII               Tilghman Island Stage-Damage and Average Annual
                                                Damage Computations                                                F-VII-1

                                                                            iv

                                                     APPENDIX F

                                                     ECONOMICS

                                                   INTRODUCTION

                The purpose of this appendix is to provide the stage-damage and cost information
                necessary for the economic evaluation of plans considered for the tidal flood-prone
                communities. This appendix presents a general discussion of the methodology used in the
                economic evaluation. This includes discussions on benefit determination and cost
                estimates as well as an overview of the analytical procedure used. This then proceeds to
                a community analysis and a comparison of "without" and "with" project conditions.

                                                   METHODOLOGY

                Beneficial effects to National Economic Development (NED) are increases in the
                economic value of the national output of goods and services resulting from a plan.
                Beneficial effects to Environmental Quality (EQ) are favorable changes in the quantity of
                natural and cultural resources or in the quality of these resources as measured by their
                ecological, aesthetic, or cultural attributes. Adverse effects to NED are the opportunity
                costs of resources used in the implementation of structural and nonstructural aspects of
                a plan. Adverse effects to EQ are unfavorable changes in the quantity of natural and
                cultural resources or in the quality of these resources as measured by ecological,
                aesthetic and cultural attributes. The economic justification of alternative plans can be
                ascertained by comparing combined NED and EQ beneficial effects to those combined
                NED and EQ adverse eff ects which will most probably by realized over the project life.
                In order for a plan to be economically justified it must have net benefits; that is, the
                combined beneficial effects must outweigh the combined adverse effects.

                The values given to benefits and costs at the time of their occurrence are made
                comparable by conversion to an equivalent time basis using an appropriate interest rate.
                At the time of the tidal flooding analysis, a Federal interest rate of 7 1/8 percent was
                used. This was the rate at which all water resources projects were evaluated in fiscal
                year 1980. Future costs and benefits were discounted to the base year of 1995 where
                applicable. A number of economic and physical forces limit the economic life of a
                project such as physical depreciation, obsolescence, changing requirements for project
                services, and inaccuracies in making extended projections. Based on these factors, an
                economic life of 100 years was selected for structural measures and an economic life of
                50 years was selected for nonstructural measures.

                The development of costs and benefits followed the Procedures for Evaluation of NED
                Benefits and Costs in Water Resources Planning. Costs and benefits were based on April
                1980 price levels for those plans in the State of Maryland evaluated by the Baltimore
                District. Plans for the Virginia communities evaluated by the Norfolk District were
                based on January 1983 price levels. Costs and benefits were evaluated at a level of
                detail appropriate to the results of the economic analyses. Plans for any community
                which were clearly economically infeasible did not receive a rigorous analysis of future
                benef its.

                                                          F-1

                     BENEFITS

                     Benefits from plans for reducing flood hazards accrue primarily through the reduction in
                     actual or potential damages associated with land use. While there is only one benefit
                     standard, there are three benefit categories, reflecting three different responses to a
                     flood hazard reduction plan. This section discusses these benefit categories and the
                     assumptions regarding those benefits which are common to all the projects considered.

                     RECREATION BENEFITS

                     No effort was made to compute potential recreation benefits as they were considered to
                     be.incidental for the scope and nature of the alternatives under consideration.

                     INTENSIFICATION BENEFITS

                     If the type of floodplain use is unchanged but the method of operation is modified
                     because of a plan, the benefit is the increased net income which.may be generated by the
                     increased or intensified floodplain activity.

                     INUNDATION REDUCTION BENEFITS

                     If floodplain use is the same with and without a project, the benefit is the increased net
                     income generated by that use. The benefit is the difference in flood damages with and
                     without the project, plus the reduction in flood proofing costs, plus the reduction in
                     insurance overhead, plus the restoration of land values in certain situations. If an
                     activity is removed from the floodplain, this inundation reduction benefit is realized only
                     to the extent that removal of the activity increases the net income of other activities in
                     the economy.

                     LOCATION BENEFITS

                     If an activity is added to the floodplain because of a plan, the benefit is the difference
                     between aggregate net incomes (including economic rent) in the economically affected
                     area with and without the plan.

                     EMPLOYMENT BENEFITS

                     If labor resources which would otherwise have been unemployed or underemployed are
                     used directly in project construction, an NED employment benefit may result. To
                     facilitate estimation of NED employment benefits for qualified communities some
                     assumptions were made. Thirty percent of estimated construction costs (excluding land)
                     was assumed to be labor costs. Labor requirements for construction were assumed to be
                     75 percent skilled, 20 percent unskilled and 5 percent other. The average wage rates
                     (includin overhead) for the skill levels were estimated to be $31,760 for a skilled
                     worker, 925,300 for an unskilled worker, and $20,840 for other workers. These assumed
                     values were based on averages observed during the construction of similar projects. For
                     purposes of this study, it was assumed that project construction would take two years and
                     50 percent of the labor would be required each year.

                                                                  F-2

                To determine employment benefits the labor requirements per skill category per year
                were computed by the following equation:

                                 FC x PLC x PSC            Number of Workers
                                       SCW                 for Skill Category

                   where:

                            FC = First Costs of Project
                            PLC    Percentage of Costs that are Labor Costs
                            PSC   Percentage of Labor Force in Skill Category
                            SCW    Skill Category Wage

                If there are more unemployed workers in the specific skill category, a local hire rule was
                assumed and the construction wage bill was used to compute average annual benefits.

                COSTS

                In the following sections the estimated first costs of construction for alternative plans
                are presented for each community. Contingencies, engineering and design (E&D), costsi
                and supervision and administration (S&A) costs are included in this total. The basis for
                costs presented is discussed in Appendix E - Engineering Design and Cost Estimates. The
                economic cost of interest during construction is not included in the gross investment
                costs of these projects. Annual costs presented in ihis' Appendi*x are based on the present
                worth of first costs at the time of construction and annual operation and maintenance.
                No allocation of cost is required.

                                     MARYLAND FLOOD-PRONE COMMUNITIES

                CAMBRIDGE, MARYLAND

                WITHOUT PROJECT CONDITIONS

                There are an estimated 3,400 acres within the community of Cambridge as described in
                Appendix A - Problem Identification. Cambridge is subjected to tidal and fluvial flooding
                on the Choptank River and Cambridge Creek. However, fluvial flooding was not
                evaluated in this study. The 100-year flood hazard zone (5.91 NGVD) covers about 70
                acres of the community. Of this area 76 percent (53 acres) is developed. The 500-year
                flood hazard zone (7.51 NGVD) covers about 139 acres. Of this amount 88 percent (122
                acres) is currently developed. '

                The Cambridge flood plain is primarily residential in character with the non-residential
                development primarily located on the waterfront. Table F- I summarizes the type of
                development in various flood hazard zones. About 80 percent of the structures in the
                flood plain are residential. Conversations with Cambridge residents and local insurance
                agents indicated that the value of the contents of an average residential structure was
                about 40 percent of the structure value.

                                                         F-3

                                                                                 TABLE F-1

                                                                 CAMBRIDGE FLOOD PLAIN INVENTORY
                                                                             (April 1980 Prices)

                                    APPROXIMATE
                     AVERAGE
                       STAGE       FLOOD HAZARD                       NUMBER OF STRUCTURES                                                      ANNUAL
                      (NGVD)             ZONE             Residential      Commercial        Industrial       Public & Other        Total       DAMAGES.
                       4 feet         12 year (8.2%)            0                2               2                   0                  4          $4,000
                       6 feet        120 year (0.82%)          60               14               2                   0                 76         $12,000
                       8 feet        500 year (0.20%)         139               29               3                   0                171         $15,000
                      18 feet              SPTF               359               50               3                   0               412          $19,000

                 FUTURE GROWTH

                 Cambridge is not subjected to strong developmental pressures and any changes in
                 Cambridge's level of development in the future will be minor. The real value of
                 residential contents was estimated to grow at the OBERS regional growth rate for per
                 capita income for BEA Area 17. The annual growth rate was 2.6 percent. The value of
                 residential contents, estimated to be 40 percent of the structure value, was projected to
                 grow at a rate of 2.6 percent annually until 2005, at which time the content value would
                 equal 75 percent of structure value. Growth in real value of contents was limited to 75
                 percent of structure value. Residential contents would increase 47 percent from 1980 to
                 1995 with an affluence factor of 1.22.

                 DAMAGES

                 A flood damage survey of all development within the Standard Project Flood Plain was
                 conducted in Cambridge in November 1979. Average annual damages were computed
                 using standard damage-frequency curve and integration techniques. Stage-damage and
                 average annual damage tables and/or computations are presented in Annex F-I
                 With the affluence factor analysis, average annual damages increased by less than $500
                 and were considered to be negligible. As noted'above, little new development is
                 anticipated in this community. However, to test the sensitivity of any plan's feasibility
                 to future development, an extreme upper limit on average annual damages was .
                 estimated. To do this it was assumed that the approximate 17 acres of undeveloped
                 floodplain land would be immediately developed in a manner reflective of existing
                 development patterns. Damage at and below the 100-year flood was increased by 25
                 percent while damages above the I 00-year flood were increased by 15 percent (different
                 percentages reflect increasing flood plain size). Under these extreme assumptions of full
                 development, average annual damages were estimated to be $23,000 as compared with
                 annual damages of $19,000 without the development.

                 WITH PROJECT CONDITIONS

                 The presence of either a structural or a nonstructural plan of improvement would not be
                 expected to influence either the size of the floodplain or the level of development in any
                 way that would dif f er from the without project land use. As a result of providing
                 protection from tidal flooding, NED benefits would accrue. The benefits considered are
                 discussed in the following paragraphs and the average annual damage computations for
                 the with project conditions are included in Annex F-I.

                 Land use is expected to be the same in Cambridge with and without a plan and no
                 increased economic activity resulting from a plan is anticipated. There is no potential
                 for intensification benefits in Cambridge. For the same reason there is no potential for
                 location benef its.

                 Dorchester County, Maryland, has been designated by the Economic Development
                 Administration, U.S. Department of Commerce, as an area of "substantial and persistent
                 unemployment" under Sub-Section I of Title IV of the Public Works and Economic
                 Development Art of 1966. Because sufficient unemployed labor resources are available
                 for employment, all plans would result in NED employment benefits.

                                                             F-5

                    Inundation reduction benefits would accrue to both the structural and nonstructural
                    plans. An affluence factor was computed for the residential content damages and was
                    found to be negligible. The summary economic analyses of six structural and two
                    nonstructural plans are presented in Table F-2.

                    In order to test the sensitivity of structural project feasibility to future development,
                    inundation reduction benefits in Table F-2 were proportionately increased to $7,000,
                    $6@000, $4,000, $12,000, $8,000, and $6,000, for Plans CA-1 through CA-6, respectively.
                    The benef it-cost ratios f or the structural plans remained at 0. 1 to 1. Nonstructural plans
                    were not reevaluated because it was assumed that new development would comply with
                    National Flood Insurance Program floodproofing requirements. There were no
                    economically justified plans identified for Cambridge. Economic justification is
                    insensitive to a more rigorous evaluation of future benefits and there is no realistic
                    potential for unquantifiable EQ benefits.

                    CRISFIELD, MARYLAND

                    WITHOUT PROJECT CONDITIONS

                    The community of Crisfield is approximately 2,100 acres in size and approximately 50
                    percent of the community is subject to tidal flooding. The community may be subjected
                    to high velocity flooding as a result of the,direct assault of waves on development. With
                    the presence of a major Bay harbor in Crisfield, there is the potential for high debris
                    content in flood waters if boats break loose or if waterfront structures are battered by
                    waves in a major storm.

                    The 100-year flood hazard zone (5.11 NGVD) covers about 938 acres of the community.
                    Of this area 73 percent (683 acres) is developed. The 500-year flood hazard zone (6.11
                    NGVD) covers about 1,283 acres. Of this amount 71 percent (913 acres) is currently
                    developed.

                    The Crisfield flood plain is primarily residential in character with some non-residential
                    development. Table F-3 summarizes the type of development in various flood hazard
                    zones. About 85 percent of the structures in the flood plain are residential.
                    Conversations with Crisfield residents and local insurance agents indicated that the value
                    of the contents of an average residential structure was about 40 percent of the structure
                    value.

                    FUTURE GROWTH

                    Crisfield is not subjected to strong developmental pressures and any changes in
                    Crisfield's level of development in the future will be minor. The real value of residential
                    contents was estimated to grow atthe OBERS regional growth rate for per capita income
                    for BEA Area 17, which includes Crisfield. Per capita income was estimated to grow at
                    an annual rate of 2.6 percent. The value of residential contents, estimated to be 40 per-
                    cent of structure value, was projected to grow at a rate of 2.6 percent annually until
                    2005, at which time the content value would equal 75 percent of structure value. Growth
                    in real value of contents beyond 75 percent of structure value was not estimated.
                    Residential contents would increase by 47 percent from 1980 to 1995 with an af f luence
                    factor of 1. 22.

                                                              F-6

                                                                                       TABLE F-2

                                                SUMMARY ECONOMIC ANALYSIS OF ALTERNATIVE PLANS FOR CAMBRIDGE
                                                                                    (April 1980 Prices)
                                                                                         ($1,000,S)

                                                                                          PLAN
                         ITEM                                     CA-1         CA-2       CA-3        CA-4       CA-5        CA-6        CA-7         CA-8

                         Costs
                           First                                 $79588      $5,869      $5,156      $9,121     $7,028      $6,061        $357         $749
                           Annual
                              I&A                                   541          419        368         651         501        432          26           55
                              O&M                                    47           36          32         56          44          39           0           0
                           Total                                   $588         $455       $400        $707       $545        $470         $26          $55

                         Benefits
                           Intensif ication                        $ 0          $ 0        $ 0         $ 0        $ 0         $ 0           $0           $0
                           Location                                    0           0           0           0          0           0           0           0
                           Employment                                79           61          54         94          72          62           4           a
                           Inundation Reduction
                              Existing                                 6            5          3          10          7           5          10          12
                              Future*                                  0            0          0           0          0           0           0           0
                           Total                                   $85          $66         $57        $104        $79         $67         $14          $20
                         Net Benef its                            -$503        -$389      -$343       -$603      -$466       -$403        -$12         -$35
                         Benefit-Cost Ratio                          0.1          0.1        0.1         0.1        0.1         0.1         0.5          0.4

                           *Consists of affluence factor for residential contents only.

                                                                                   TABLE F-3

                                                                    CRISFIELD FLOOD PLAIN INVENTORY
                                                                                (April 1980 Prices)

                                     APPROXIMATE                                                                                                   AVERAGE
                        STAGE       FLOOD HAZARD                           NUMBER OF STRUCTURES                                                    ANNUAL
                        (NGVD)           -ZONE            Re-sidential       Commercial        Industrial       Public & Other         Total       DAMAGES

                         4 feet       12 year (8.2%)              57              69               0                    3               129          $40,000

                         5 feet       80 year (1.2%)             564            162                3                   13               742        $102,000

                         6 feet     400 year (0.25%)           IP133            193                4                   18             1,348        $129,000

               00      12 feet      500 year (0.20%)           IP679            208                4                   31              1,922       $146,000

                DAMAGES

                A flood damage survey was conducted in Crisfield in November 1979. Average annual
                damages were romputed using standard damage-f requency curve and integration tech-
                niques. Details and pertinent data for calculating the stage-damage relationship and
                existing average annual damages of $146,000 for Crisfield's development are presented in
                Annex F-H.

                With the affluence factor analysis, average annual damages increased by $5,000 to
                $151,000. As noted above, little new development is anticipated in this community.
                However, to test the sensitivity of any plan's feasibility to future development an ex-
                treme upper limit on average annual damages was estimated. To do this it was assumed
                that the approximate 370 acres of undeveloped land would be immediately developed in a
                manner reflective of existing development patterns. Damages at and below the 100-year
                flood were increased by 25 percent while damages above the 100-year flood were
                increased by 30 percent (different percentages reflect increasing flood plain size). Under
                these extreme assumptions of full development, average annual damages were estimated
                to be $185,000.

                WITH PROJECT CONDITIONS

                The presence of either a structural or a nonstructural plan of improvement would not be
                expected to influence either the size of the flood plain or the level of development in any
                way that would differ from without project land use. As a result of providing protection
                from tidal flooding NED benefits would accrue. The benefits considered are discussed in
                the following paragraphs and the average annual damage computations for the with
                project conditions are included in Annex F-H.

                Land use is expected to be the same in Crisfield with and without a plan and no increased
                economic activity resulting from a plan is anticipated. There is no potential for
                intensification benefits in Crisfield. For the same reason there is no potential for
                location benefits.

                Somerset County, Maryland, has been designated by the Economic Development
                Administration, U.S. Department of Commerce, as an area of "substantial and persistent
                unemployment" under Sub-section I of Title IV of the Public Works and Economic
                Development Act of 1966. Because sufficient unemployed labor resources are available
                for employment, all plans would result in NED employment benefits.

                Inundation reduction benefits would accrue to both the structural and nonstructural
                plans. An affluence factor was compi4ted for the residential content damages. The
                summary economic analyses of four structural and two nonstructural plans are presented
                in Table F-4.

                In order to test the sensitivity of project feasibility to future development, inundation
                reduction benefits for Plans CR-I through CR-4 were increased to $92,000, $86,000,
                $120,000 and $112,000, respectively, in accordance with the future development assump-
                tion explained above. The bene f it-cost ratios f or the plans remained 0.3 to I even with
                these inrreases in inundation reduction benefits. Nonstructural plans were not reevalu-
                ated because it was assumed that new development would comply with National Flood
                Insurance Program floodproofing requirements.

                                                          F-9

                                                                                       TABLE F-4
                                                 SUMMARY ECONOMIC ANALYSIS OF ALTERNATIVE PLANS FOR CRISFIELD
                                                                                    (April 1980 Prices)
                                                                                        ($1,000's)

                                                                                          PLAN
                        ITEM                                     CR-1         CR-2        CR-3       CR-4        CR-5        'CR-6

                        Costs
                            First                               $7,019       $7,333      $5,807     $7,215     $ 676       $69294
                            Annual
                              I&A                                   501          523        414         515          50        463
                              O&M                                     42          44          35         43            0           0
                            Total                                $  543      $   567      $  449     $  558     $    50    $   463

                         Benef its
                            Intensif ication                     $     0      $     0     $     0          0    $      0    $      0.
                            Location                                   0            0           0          0           0           0
                            Employment                                72          76          60          75           7         65
                            Inundation. Reduction
                                 Existing                             71           92         66          85         24          89
                                 Future*                               2            3           2          3           1           3
                            Total                                $   145      $   171     $  128     $   163     $   32    $    157
                         Net Benefits                           -$   398     -$  .396    -$  321    -$   395    -$   18   -$    306
                         Benefit-Cost Ratio                          0.3          0.3         0.3        0.3         0.6        0.3

                          *Consists of affluence factor for residential contents only.

                There were no economically justified plans identified for Crisfield. Economic
                justification is insensitive to a more rigorous evaluation of future benefits and there is no
                realistic potential for unquantifiable EQ benefits.

                POCOMOKE CITY, MARYLAND

                WITHOUT PROJECT CONDITIONS

                There are an estimated 1,080 acres within the community of Pocomoke City as described
                in Appendix A - Problem Identification. Pocomoke City is subject to tidal flooding from
                the Pocomoke River. The 100-year flood hazard zone (6.31 NGVD) covers about 81 acres
                of the community. All of this area is developed. The 500-year flood hazard zone (7.81
                NGVD) covers about 171 acres of which 84 percent (144 acres) is currently developed.

                The Poromoke City flood plain is primarily residential in character with large amounts of
                non-residential development. Table F-5 summarizes the type of development in various
                flood hazard zones. About 80 percent of the structures in the flood plain are
                residential. Conversations with Pocomoke City residents and local insurance agents
                indicated that the value of the contents of an average residential structure was about 40
                percent of the structure value.

                FUTURE GROWTH

                Poromoke City is not subjected to developmental pressures and any changes in Pocomoke
                City's level of development in the future will be minor. The real value of residential
                contents was estimated to grow at the OBERS regional growth rate for per capita income
                for BEA Area 17, which includes Pocomoke City. Per capita income was estimated to
                grow at an annual rate of 2.6 percent. The value of residential contents, estimated to be
                40 percent of structure value, was projected to grow at a rate of 2.6 percent annually
                until 2005, at which time the content value would equal 75 percent of the structure
                value. Growth in real value of contents was limited to 75 percent of the structure
                value. Residential contents would increase 47 percent from 1980 to 1995 with an
                affluence factor of 1. 22.

                DAMAGES

                A flood damage survey was conducted in Pocomoke City in July 1979. Average annual
                damages were computed using standard damage-frequency curve and integration
                techniques. Details and pertinent data for calculating stage-damage and the existing
                average annual damages of $25,000 for Pocomoke City are presented in Annex F-III..
                With the affluence factor analysis, average annual damages increased by less than $500
                and were considered to be negligible. As noted above, little new development is
                anticipated in this community. However, to test the sensitivity of any plan's feasibility
                to future development an extreme upper limit on average annual damages was
                estimated. To do this, it was assumed that the approximate 27 acres of undeveloped land
                would be immediately developed in a manner reflective of existing development
                patterns. Damages at and below the 70-year event were not increased but damages
                above the I 00-year event were increased by 16 percent (different percentages reflect
                increasing flood plain size). Under these extreme assumptions of full development,,
                average annual damages were estimated to be $27,000.

                                                         F-11

                                                                                    TABLE F-5

                                                                POCOMOKE CITY FLOOD PLAIN INVENTORY
                                                                                (April 1980 Prices)
                        STAGE        APPROXIMATE                                                                                                      AVERAGE
                                    FLOOD HAZARD                             NUMBER OF STRUCTURES                                                     ANNUAL
                        (NGVD)            ZONE              Residential      Commercial         Industrial       Public & Other        Total          DAMAGES

                         4 feet        8 year (12%)               2                1                0                   0                  3          $5vooo

                         5 feet        25 year (4%)              16                4                1                   0                 21          $8,000

                         6 feet       70 year (1.4%)             43                8                1                   0                 52         $12,000

                         8 feet     500 year (0.20%)            145               30                2                   1                178         $20,000
                        18 feet            SPTF                 597              103                3                  18               721          $25,000

                WITH PROJECT CONDITIONS

                The presence of either a structural or a nonstructural plan of improvement was not ex-
                pected to influence either the size of the flood plain or the level of development in any
                way that would differ from without project land use. As a result of providing protection
                from tidal flooding NED benefits would accrue. The benefits considered are discussed in
                the following paragraphs and the average annual damage computations for the with
                project conditions are included in Annex F-111.

                Land use is expected to be the same in Pocomoke City with and without a plan and no in-
                creased economic activity resulting from a plan is anticipated. There is no potential for
                intensification benefits in Pocomoke City. For the same reason there is no poiential for
                location benefits. Worcester County, Maryland, has not been designated as an area of
                "substantial and persistent unemployment" so NED employment benefits were not
                estimated.

                Inundation reduction benefits would accrue to both the structural and nonstructural
                plans. An affluence factor was computed for the residential content damages. The
                summary economic analyses of two structural and three nonstructural plans are
                presented in Table F-6.

                In order to test the sensitivity of project feasibility to future development, inundation
                reduction benefits in Table F-6 were increased by the eight percent increase in average
                annual damages due to full development in accordance with the assumptions explained
                above. The benef it-cost ratios for the structural plans were still less than 0. 1.
                Nonstructural plans were not reevaluated because it was assumed that new development
                would comply with National Flood Insurance floodproofing requirements.

                There were no eronomically justified plans identified for Pocomoke City. Economic
                justifiration is insensitive to a more rigorous evaluation of future benefits and there is no
                realistic potential for unquantifiable EQ benefits.

                ,ROCK HALLp MARYLAND

                WITHOUT PROJECT CONDITIONS

                Rock Hall is approximately 860 acres in size and is subject to the tidal flooding of the
                Chesapeake Bay. The community may be subjected to high velocity flooding as a result
                of the direct assault of waves on development. With the presence of a major Bay harbor
                in Rock Hall, there is a potential for high debris content in flood waters if boats break
                loose in a major storm.

                The 100-year flood hazard zone (8.71 NGVD) covers about 466 acres of the community.
                Of this area 57 percent (266 acres) is developed. The 500-year flood hazard zone (11.51
                NGVD) covers about 529 acres. Of this amount 68 percent (329 acres) is currently
                developed.

                The Rock Hall flood plain is primarily residential in character with the non-residential
                development primarily oriented toward the waterfront. Table F-7 summarizes the types
                of development in the various flood hazard zones. About 90 percent of the structures in

                                                            F- 13

                                                                                TABLE F-6

                                                    SUMMARY ECONOMIC ANALYSIS OF ALTERNATIVE PLANS
                                                                         FOR POCOMOKE CITY
                                                                             (April i 98n Prices)
                                                                                 ($ 1, 9 n0n,s)

                                                                                                 PLAN

                                       ITEM                               PC-]         PC-2       PC-3       PC-4        PC-5

                                    Costs
                                       First                           $ 3@543      $ 4v323    $ 260       $ 729      $ 1,357
                                       Annual
                                        I&A                                 253         3ng         19          54         ton
                                        O&M                                  22           27         0           0          n
                                    Total                               $   275     $   335      $  19      $   54    $    InO

                                    Benefits
                                       Intensification                   $   n       $    n      $   n       $   n     s    n
                                       Location                              n            0          n                      n
                                       Employment                            n            n          n           n          0
                                       Inundation Reduction
                                          Existing                           11           17        ln          14          18
                                          Future.*                           n            n          n           n          0
                                    Total                               $    11      $    17     $  in      $   14     $    18

                                    Net Bene fits                           264         318          9          4n          82

                                    Be-nefit-Cost  Ratio                    n.n         n. j.       n.5         n.3        0.2

                                 *Consists of af f luence f actor f or residential contents only.

                                                                                   TABLE F-7

                                                                   ROCK HALL FLOOD PLAIN INVENTORY
                                                                               (April 1980 Prices)

                                     APPROXIMATE                                                                                                AVERAGE
                        STAGE       FLOOD HAZARD                              NUMBER OF STRUCTURES                                               ANNUAL
                        (NGVD)            ZONE             Residential       Commercial        Industrial    Public & Other        Total       DAMAGES

                         4 feet       8 year (12%)               29                5               1                 0                35           $3,000

                         6 feet       25 year 0%)             143                17                6                 0              166          $17,000

                         9 feet      140 year (0.7%)          317                22                7                 0              346          $47,000

                       12 feet       500 year (0.2%)          423                24                7                 1              455          $63,000

              Ln       18 feet            SPTF                613                4:4               8                 &              673          $76,000

                     the flood plain are residential. Based on conversations with Rock Hall residents and local
                     insurance agents the value of the contents of an average residential structure was about
                     40 percent of the structure value.

                     FUTURE GROWTH

                     Rock Hall is not subject to developmental pressures and any changes in Rock Hall's level
                     of development in the future are expected to be minor. Those changes which will take
                     place will be because of, and not in spite of, Rock Hall's proximity to the water. A
                     Federal project consisting of channel deepening and modifications and raising of the
                     breakwaters has caused some expansion within the Rock Hall Harbor. This may have
                     spurred some small increase in support services and residences, but the magnitude is
                     minor.

                     The real value of residential contents was estimated to grow at the OBERS regional
                     growth rate for per capita income for BEA Area 17, which includes Rock Hall. Per
                     capita income was estimated to grow at an annual rate of 2.6 percent. The value of
                     residential contents, estimated to be 40 percent of structure value, was projected to
                     grow at a rate of 2.6 percent annually until 2005, at which time content value would
                     equal 75 percent of structure value. Growth in real value of contents was limited to 75
                     percent of structure value. Residential contents would increase by 47 percent from 1980
                     to 1995 with an affluence factor of 1.22.

                     DAMAGES

                     A flood damage survey was conducted in Rock Hall in June 1979. Average annual
                     damages were computed using standard damage-frequency curve and integration
                     techniques. Details and pertinent data for determining stage-damages and the existing
                     averageannual damages of @76,000 for Rock Hall are presented in Annex F-IV.
                     With the affluence factor analysis, average annual damages increased by $3,000 to
                     $79,000. As noted above, little new development is anticipated in this community.
                     However, to test the sensitivity of any plan's feasibility to future development an
                     extreme upper limit on average annual damages was estimated. To do this it was
                     assumed that the approximate 200 acres of undeveloped land would be immediately
                     developed in a manner reflective of existing development patterns. Damages at and
                     below the 100-year flood were increased by 75 percent while damages above the 100-year
                     flood were increased by 60 percent (different percentages reflect increasing flood plain
                     size). Under these extreme assumptions of full development, average annual damages
                     were estimated to be $127,000.

                     WITH PROJECT CONDITIONS

                     The presence of either a structural or a nonstructural plan of improvement would not be
                     expected to influence either the size of the flood plain or the level of development in any
                     way that would dif f er from the without project land use. As a result of providing
                     protection from tidal flooding NED benefits would accrue. The benefits considered are
                     discussed in the following paragraphs and the average annual dainage computations for
                     the with project conditions are included in Annex F-IV.

                                                                F- 16

                Land use is -expected to be the same in Rock Hall with and without a plan and no
                increased economic activity resulting from a plan is anticipated. There is no potential
                for intensification benefits in Rock Hall. For the same reason, there is no potential for
                location benefits.

                Kent County, Maryland, has been designated by the Economic Development
                Administration, U.S. Department of Commerce as an area of "substantial and persistent
                unemployment" under sub-section I of Title IV of the Public Works and Economic
                Development Act of 1966. Because sufficient unemployed labor resources are available
                for employment, all plans would result in NED employment benefits.

                Inundation reduction benefits would accrue to both the structural and nonstructural
                plans. An affluence factor was computed for the residential content damages. The
                summary economic analyses of six structural and four nonstructural plans are presented
                in Table F-8.

                In order to test the sensitivity of structural project feasibility to future development,
                inundation reduction benefits in Table F-8 were proportionately increased to $67,000,
                $92,000, $40,000, $55,000, $27,000, and $37,000, for Plans RH-I thru RH-6,
                respectively. The benef it-cost ratios for the structural plans remained at 0.2.
                Nonstructural plans were not reevaluated because it is assumed that new development
                would comply with National Flood Insurance Program floodproofing requirements.

                There were no economically justified plans identified for Rock Hall. Economic
                justification is insensitive to a more rigorous evaluation of future benefits and there is no
                realistic potential for unquantifiable EQ benefits.

                SNOW HILL, MARYLAND

                WITHOUT PROJECT CONDITIONS

                Snow Hill is approximately 750 acres in size and is subject to tidal flooding from the
                Pocomoke River. The I 00-year flood hazard zone (6.31 NGVD) covers about 92 acres of
                the community. Of this area, 21 percent (19 acres) is developed. The 500-year flood
                hazard zone (7.8' NGVD) covers *about 141 acres. Of this amount 28 percent (39 acres) is
                developed. The Snow Hill flood plain is primarily non-residential in character. Table F-9
                summarizes the type of development in various flood hazard zones. About 45 percent of
                the structures in flood plains less than the 100-year flood plain are residential.

                Based on conversations with Snow Hill residents and local insurance agents the value of
                the contents of an average residential structure was estimated to be 40 percent of the
                structure value.

                                                          F- 17

                                                                                       TABLE F-8

                                               SUMMARY ECONOMIC ANALYSIS OF ALTERNATIVE PLANS FOR ROCK HALL
                                                                                   (April 1980 Prices)
                                                                                         ($1,000,S)

                                                                                          PLAN

                        ITEM                        RH-1       RH-2       RH-3         RH-4      RH-5      RH-6 RH-7           RH-8      RH-9       RH-10

                        Costs
                          First                    $90455    $13P514     $7,996      $10,308    $3,292     $4,797   $1v093    $2,504    $4,832      $7,081
                          Annual
                             I&A                      674         964       570          735        235      342       81        184        356        521
                             O&M                        58         82         49          63         20       29         0         0         0           0
                          Total                     $ 732    $ 19046      $ 619      $   798     $  255   $  371     $ 81    $   184     $  356     $  521

               co       Bene f its
                          Intensif ication          $    0     $     0    $    0      $     0    $    0    $    0     $ 0     $    0     $   0       $   0
                          Location                       0           0         0            0         0         0        0         0         0           0
                          Employment                    97        139         82         106         34       49       11         26         50          73
                          Inundation Reduction
                                Existing                39         53         23          32         15       21       12         24         40          50
                                Future*                  1           2         1            1         1          1       0         1         2           2
                          Total                     $ 137      $  194     $ 106      $   139     $   50    $  71     $ 23     $    51    $   92     $  125

                        Net Benef its             -$  595     -$  852   -$  513     -$   659   -$ 205    -$  300    -$ 58     $-133     -,$-264     $-396

                        Benefit-Cost Ratio            0.2         6.2       0.2          0.2        0.2      0.2       0.3        0.3       0.3        0.2

                        *Consists of affluence factor for residential contents only.

                                                                                    TABLE F-9

                                                                    SNOW HILL FLOOD PLAIN INVENTORY
                                                                                (April 1980 Prires)

                                      APPROXIMATE                                                                                              AVERAGE
                          STAGE      FLOOD HAZARD                              NUMBER OF STRUCTURES                                             ANNUAL
                         (NGVD)            ZONE            Residential     Commerrial       Industrial      Public & Other        Total        DAMAGES

                          4 f e-e-t     8 year 0.2%)            1                2             0                   0                  3             $300

                          5 feet        25 year (4%)            4                8             1                   0                 13            $3,000

                          6 f eet      7n year 0.4%)           13              1.4             1                   0                 28           $5,000
                          8 feet      5no year (n.2n%)         62              22              3                   1                &a            $9,000

                         18 f e-e-t        SPTF               414              62              5                  14               495           $11,000

                     FUTURE GROWTH

                     Snow Hill is not subject to developmental pressures and any changes in Snow Hill's level
                     of development in the future will be minor. The real value of residential contents was
                     estimated to grow at the OBERS regional growth rate for per capita income for BEA
                     Area 17, which includes Snow Hill. Per capita income was estimated to grow at an
                     annual rate of 2.6 percent. The value of residential contents, estimated to be 40 percent
                     of structure value, was projected to grow at a rate of 2.6 percent annually until 2005, at
                     which time content value would equal 75 percent of structure value. Growth in real
                     value of contents was limited to 75 percent of structure value. Residential contents
                     would increase 47 percent from 1980 to 1995 with an affluence factor of 1.22.

                     DAMAGES

                     A flood damage survey was conducted in Snow Hill in July 1979. Average annual
                     damages were computed using standard damage-f requency curve and integration
                     techniques. Details and pertinent data for calculating the stage-damage relationships
                     and the existing average annual damages of $11,000 are presented in Annex F-V. With
                     the affluence factor analysis, average annual damages increased by less than $500 and
                     were considered to be negligible. As noted above, -little new development is anticipated
                     in this community. However, to test the sensitivity of any plan's feasibility to future
                     development an extreme upper limit on average annual damages was estimated. To do
                     this it was assumed that the approximate 100 acres of undevelopt-d land within the
                     community would be immediately developed in a manner reflective of existing
                     development patterns. Damages at and below the I 00-year flood were increased by 380
                     percent while damages above the 100-year flood were increased by 260 percent (different
                     percentages reflect increasing flood plain size). Under these.extreme assumptions of full
                     development, average annual damages were estimated to be @37,000.

                     WITH PROJECT CONDITIONS

                     The presence of either a structural or a nonstructural plan of improvement would not be
                     expected to influence either the size of the flood plain or the level of development in any
                     way that would differ from without project land use. As a result of providing protection
                     from tidal flooding NED benefits would accrue. The benefits considered are discussed in
                     the following paragraphs and the average. annual damage computations for the with
                     project conditions are included in Annex F-V.

                     Land use is expected to be the same in Snow Hill with and without a plan and no
                     increased economic activity resulting from the plan is anticipated. There is no potential
                     for either intensification or location benefits.in Snow Hill. Worcester County, Maryland,
                     has not been designated as an area of "substantial and persistent unemployment" so NED
                     employment benefits are not warranted.

                     Inundation reduction benefits would accrue to both the structural and nonstructural
                     plans. An affluence factor was computed for the residential content damages but the
                     increase was insignificant. The summary economic analyses of four structural and three
                     nonstructural plans are presented in Table F-10.

                                                                F-20

                                                                                        TABLE F-10

                                                  SUMMARY ECONOMIC ANALYSIS OF ALTERNATIVE PLANS FOR SNOW HILL
                                                                                    (April 1980 Prices)
                                                                                          ($1,000's)

                                                                                           PLAN

                          ITEM                                     SH-1         SH-2       SH-3        SH-4       SH-5       SH-6        SH-7

                          Costs
                             First                               $3,011       $2,845     $3,742     $3,596     $    304     $  421     $1,210
                             Annual
                               I&A                                   215          203        267        256          22          38        89
                               O&M                                    19           18         23          23         0           0          0
                             Total                                $  234      $   221     $  290     $  279     $    22     $    38    $   89

                          Benef its
                             Intensification                      $    0      $    0      $    0     $    0     $    0      $    0     $    0
                             Location                                  0           0           0          0          0           0          0
                             Employment                                0           0           0          0          0           0          0
                             Inundation Reduction
                                  Existing                             5           5           9          8          3           6          8
                                  Future*                              0           0           0          0          0           0          0
                             Total                                $    5      $    5      $    9     $    8     $    3      $    6     $    8
                          Net Benefits                          -$   229     -$   216   -$   281    -$  271    -$    19   -$ 32       -$   91

                          Benefit-Cost Ratio                        0.02         0.02       0.03        0.03        0.1         0.2       0.09

                          *Consists of affluence factor for residential contents only.

                      In order to test the sensitivity of structural project feasibility to future development, the
                      inundation reduction benefits shown in Table'F- 10 for Plans SH- I through SH-4 were
                      proportionately increased to $16,000, $16,000, $29,000 and $26,000, respectively. With
                      this increase in benefits, the benef it-cost ratios for the structural plans still remained at
                      or less than 0.1. Nonstructural plans were not reevaluated because it was assumed that
                      new development would comply with National Flood Insurance Program floodproofing
                      requirements.

                      There were no economically justified plans identified for Snow Hill. Economic
                      justification is insensitive to a more rigorous evaluation of future benefits and there is no
                      realistic potential for unquantifiable EQ benefits.

                      ST. MICHAELS, MARYLAND

                      WITHOUT PROJECT CONDITIONS

                      St. Michaels is approximately 620 acres in size and is subject to tidal flooding on the
                      Miles River. The 100-year flood hazard zone (7.21 NGVD) covers about 73 acres of the
                      community. One hundred percent of this area is developed. The 500-year flood hazard
                      zone (9.21 NGVD) covers about 292 acres. Of this amount 76 percent (222 acres) is
                      developed.

                      The St. Michaels flood plain is primarily residential in character with the non-residential
                      development primarily located on the waterfront and a main commercial street. Table
                      F-1 I summarizes the type of development in various flood hazard zones. About 80
                      percent of the structures in the flood plain are residential. Based on conversation@ with
                      St. Michaels' residents and local insurance agents the value of the contents of an average
                      residential structure was estimated to be about 40 percent of the structure value.

                      FUTURE GROWTH

                      St. Michaels is not subject to strong developmental pressures and any changes which take
                      place will be because of, and not in spite of, St. Michaels proximity to the water. The
                      real value of residential contents was estimated to grow at the OBERS regional growth
                      rate f or per capita income f or BEA Area 17, which includes St. Michaels. Per capita
                      income was estimated to grow at an annual rate of 2.6 percent. The value of residential
                      contents, estimated to be 40 percent of structure value, was projected to grow at a rate
                      of 2.6 percent annually until 2005, at which time the content value would equal 75
                      percent of structure value. Growth in real value of contents was limited to 75 percent of
                      structure value. Residential contents would increase 47 percent from 1980 to 1995 with
                      an affluence f actor of 1.22.

                      DAMAGES

                      A flood damage survey was conducted in St. Michaels in August 1979. Average annual
                      damages were computed using standard damage-f requency curve and integration
                      techniques. Details and pertinent data for calculating the stage-damage relationship and
                      the existing average annual damages are presented in Annex F-VI. With the affluence
                      factor analysis, the average annual damages of $27,000 increased by less than $500 and

                                                                  F-22

                                                                                    TABLE F-1 I

                                                                   ST. MICHAELS FLOOD PLAIN INVENTORY
                                                                                 (April 1980 Prices)

                                       APPROXIMATE                                                                                                  AVERAGE
                          STAGE        FLOOD HAZARD                           NUMBER OF STRUCTURES                                                   ANNUAL
                         (NGVD)              ZONE -         Residential       Commercial         Industrial       Public & Other        Total       DAMAGES
                          4 feet         10 year (10%)             1                2                1                  0                  4           $49000
                          5 feet         20 year (5%)              3                3                1                  0                  7           $6,000
                          7 feet         100 year (1%)            55                5                5                  2                67          $10,000
                          9 feet       450 year (0.22%)          255               49                6                  5               315          $17,000

                         16 feet             SPTF                713               78               10                  12              813          $27,000

                     this increase was considered to be negligible. As noted above, little new development is
                     anticipated in this community. However, to test the sensitivity of any plan's feasibility
                     to future development an extreme upper limit on average annual damages was
                     estimated. To do this it was assumed that the approximately 70 acres of undeveloped
                     land within the community would be immediately developed in a manner reflective of
                     existing development patterns. Damages at and below the 100-year flood were not
                     increased but damages above the 100-year flood were increased by 30 percent (different
                     percentages reflect increasing flood plain size). Under these extreme assumptions of full
                     development, average annual damages were estimated to increase by $5,000 to $32,000.

                     WITH PROJECT CONDITIONS

                     The presence of either a structural or a nonstructural plan of improvement would not be
                     expected to influence either the size of the flood plain or the level of development in any
                     way that would dif f er from the without project land use. As a result of providing
                     protection from tidal flooding NED benefits would accrue. The benefits considered are
                     discussed in the following paragraphs and the average annual damage computations for
                     the with project conditions are included in Annex F-VI.

                     Land use is expected to be the same in St. Michaels with and without a plan and no in-
                     creased economic activity resulting from a plan is anticipated. There was no potential
                     for either intensification or location benefits in St. Michaels. Talbot County, Maryland,
                     has not been designated as an area of "substantial and persistent unemployment" so NED
                     employment benefits were not warranted.

                     Inundation reduction benefit s would accrue to'both the structural and nonstructural
                     plans. An affluence factor was computed for the residential content damages. The
                     summary economic analysis of two structural and two nonstructural plans is presented in
                     Table F- 12.

                     In order to test the sensitivity of structural project feasibility to future development, the
                     inundation reduction bene f its f or plans SM- I and SM-2 were proportionately increased to
                     $12,000 and $20,000, respectively. The benefit-cost ratios for the structural plans re-
                     mained less than 0.1. Nonstructural plans were not reevaluated because it was assumed
                     that new development would comply with National Flood Insurance Program flood-
                     proofing requirements.

                     There were no economically justified plans identified for St. Michaels. Economic
                     justification is insensitive to a more rigorous evaluation of future benefits and there is no
                     realistic potential for unquantifiable EQ benefits.

                     TILGHMAN ISLAND, MARYLAND

                     WITHOUT PROJECT CONDITIONS

                     The community of Tilghman is approximately 1,530 acres in size. Tilghman Island is
                     subjected to tidal flooding from the Chesapeake Bay. The community may be subjected
                     to high velocity flooding as a result of the direct assault of waves on development. With
                     the presence of a major Bay harbor and waterfront development in Tilghman, there is the
                     potential for high debris content in flood waters if the boats break loose in a major storm

                                                                 F-24

                                                                        TABLE F-12

                                 SUMMARY ECONOMIC ANALYSIS OF ALTERNATIVE PLANS FOR ST. MICHAELS
                                                                     (April 1980 Prices)

                                                                                       PLAN

                              ITEM                               SM-1            SM-2           SM-3            SM-4

                              Costs
                                 First                        $ 7,224         $1.1,1971        $ 73n            $ 916
                                 Annual
                                   I&A                             515              854             54              67
                                   O&M                               44              73              0               0

                                 Total                         $   559          $   927         $   54          $   67

              Ul
                              Benef its
                                 Intensification                $    n           s    n         $    0          $    0
                                 Location                            0                               0               0
                                 Employment                          r)                              0               0
                                 Inundation Reduction
                                   Existing                          in              17              8              11
                                   Future                            0                               0               0

                                 Total                         $     in          $   17         $    8          $   11

                              Net Benefits                    -$ 549          -$ 91 n         -$ 46            -$   56

                              Benefit-Cost   Ratio                 n.n2            n.n2            0.1              0.2

                              *Consists of aff luence f actor for residential contents only.

                     or if waterfront property is demolished. The 100-year flood hazard zone (6.1 feet NGVD)
                     covers about 1,108 acres of the community. Of this area 21 percent (236 acres) is
                     developed. The 500-year flood hazard zone (7.9 feet NGVD) covers about 1,397 acres.
                     Of this amount 25 percent (355 acres) is developed.

                     The Tilghman Island flood plain is primarily residential in character with the non-
                     residential development oriented toward the waterfront. Table F- 13 summarizes the
                     type of development in various flood hazard zones. About 90 percent of the structures in
                     the flood plain are residential. The value of the contents of an avera ge residential
                     structure was estimated to be about 40 percent of the structure value.

                     FUTURE GROWTH

                     Tilghman Island is not subject to developmental pressures and any changes to Tilghman
                     Island's level of development in the future will be minor. Those changes will take place
                     because of, and not in spite of, Tilghman Island's proximity to the water. The real value
                     of residential contents was estimated to grow at the OBERS regional growth rate for per
                     capita income for BEA Area 17, which includes Tilghman Island. Per capita income
                     growth was estimated to be at an annual rate of 2.6 percent. The value of residential
                     contents, estimated to be 40 percent of the structure value, was projected to grow at a
                     rate of 2.6 percent annually until 2005, at which time content value would equal 75
                     percent of structure value. Growth in real value of contents was limited to 75 percent of
                     the structure value. Residential contents would increase 47 percent from 1980 to 1995
                     with an affluence factor of 1.22.

                     DAMAGES

                     A flood damage survey was conducted in the community in May 1979. Average annual
                     damages were computed using standard damage-frequency curve and integration
                     techniques. Details and pertinent data for calculating the stage-damage relationship and
                     the existing average annual damages of $35,000 are presented in Annex F-VIL With the
                     affluence factor analysis, average annual damages increased from $35,000 to $36,000.
                     As noted above, little new development is anticipated in this community. However, to
                     test the sensitivity of any plan's feasibility to future development an extreme upper limit
                     on average annual damages was estimated. To do this it was assumed that the
                     approximate 1,042 acres of undeveloped land would be immediately developed in a
                     manner reflective of existing development patterns. Damages at and below the 100-year
                     flood were increased by 370 percent while damages above the 100-year flood were
                     increased by 290 percent (different percentages reflect increasing flood plain size).
                     Under these extreme assumptions of full development, average annual damages were
                     estimated to be $124,000.

                     WITH PROJECT CONDITIONS

                     The presence of either a structural or a nonstructural plan of improvement would not be
                     expected to influence either the size of the flood plain or the level of development in any
                     way that would differ from the without project land use. As a result of providing
                     protection from tidal flooding NED benefits would accrue. The benefits considered are
                     discussed in the following paragraphs and the average damage computations for the with
                     project conditions are included'in Annex F-VIL

                                                                F-26

                                                                                     TABLE F-13

                                                                 TILGHMAN ISLAND FLOOD PLAIN INVENTORY
                                                                                 (April 1980 Prices)

                                      APPROXIMATE                                                                                                   AVERAGE
                          STAGE      FLOOD HAZARD                             NUMBER OF STRUCTURES                                                   ANNUAL
                          (NGVD)            ZONE              Residential     Commercial         Industrial       Public & Other         Total      DAMAGES
                          4 feet          15 year (6%)            47                 4               2                   1                 55           $8,000
                          5 feet        40 year (2.5%)            99               10                2                   1               112         $15,000
                          6 feet        90 year (I. 1%)          167               11                3                   1               182         $21,000
                          8 feet       500 year (0.20%)          275               13                3                   2               293         $31,000
                         15 f eet            SPTF                446               22                4                   8               480         $36,000

                    Land use is expected to be the same in Tilghman Island with and without a plan and no
                    increased economic activity resulting from the plan is anticipated. There is no potential
                    for either location or intensification benefits. Talbot County, Maryland, was not
                    designated as an area of "substantial and persistent unemployment" so NED employment
                    benefits were not estimated'.

                    Inundation reduction benefits would accrue to both the structural and nonstructural
                    plans. An affluence factor was computed for the residential content damages. The
                    summary economic analysis of four structural and three nonstructural plans is presented
                    in Table F- 14.

                    In order to test the sensitivity of structural project feasibility to future development,
                    inundation reduction benefits f or the structural plans TI- I through TI-4 were
                    proportionately increased to $10,000, $2,000, $21,000 and $3,000, respectively. The
                    benef it-cost ratios for the structural plans remained at zero. Nonstructural plans
                    weren't reevaluated because it was assumed that new development would comply with
                    National Flood Insurance Program floodproofing requirements. There were no
                    economically justified plans identified for Tilghman Island. Economic justification is
                    insensitive to a more rigorous evaluation of future benefits and there is no realistic
                    potential for unquantifiable EQ benefits.

                                           VIRGINIA FLOOD-PRONE COMMUNITIES

                    CAPE CHARLES, VIRGINIA

                    WITHOUT PROJECT CONDITIONS

                    Figure F-1 shows the approximate areal extent of flooding which would be experienced
                    during the 100-year and Standard Project tidal floods. Flooded areas shown represent
                    those areas flooded by a rise in water level of surrounding coastal areas. The actual
                    limits of these flooded. areas may vary slightly f rom those shown because of the eff ects
                    of wave action in exposed areas and also because of the difficulty of locating the exact
                    limits on the ground in such flat terrain. In most cases, the ground level near building
                    foundations has been raised to provide proper drainage, thereby creating isolated spots of
                    high ground which may be above the height of the flood shown. A more accurate
                    estimation of the relative flood hazard can be determined by carrying field survey levels
                    to any point in question.

                    Practically all of Cape Charles' existing development has taken place on the low ground
                    near the water's edge. Most of the town is below the level of the Standard Project Flood
                    which is an elevation of 12 feet. A field survey performed for this community included
                    an inventory of 538 structures. Of this total, 445 were residential, 85 were commercial,
                    and 8 were public structures. Studies by the Norfolk District indicated that the value of
                    residential contents compared to the value of the structure, averaged from a low of 25
                    percent to a high of about 40 percent and that lower value homes seemed to have a
                    higher percent of value of contents to structure.

                    To the south is Cape Charles Harbor, important for commercial fishing vessels and other
                    commerce, while to the north is Kings Creek, a predominantly recreational waterway
                    which is the home port for many charter fishing and hunting vessels. In 1975, an 850-foot

                                                              F-28

                                                                                           TABLE F-14

                                              SUMMARY ECONOMIC ANALYSIS OF ALTERNATIVE PLANS FOR TILGHMAN ISLAND
                                                                                       (April 1980 Prices)
                                                                                            ($19000's)

                                                                                              PLAN

                          ITEM                                  TI-1          TI-2           TI-3           TI-4               TI-5                TI-6           TI-7

                          Costs
                             First                           $7,370       $2,342          $8,896         $2,878             $   121           $ 19038         $ 2*,772
                             Annual
                               I&A                              526           167             635           205                  9                  76             204
                               O&M                                45            15              55            18                 0                   0                0
                             Total                           $  571        $  182          $  690        $  223             $    9             $    76         $   204

                          Benef its
                             Intensification                 $     0       $    0          $    0        $     0            $    0              $    0          $     0
                             Location                              0            0               0              0                 0                   0                0
                             Employment                            0            0               0              0                 0                   0                0
                             Inundation Reduction
                                  Existing                         3            0               6              1                 3                  14              21
                                 Future*                           0            0               0              0                 0                   0                1
                             Total                           $     3       $    0          $    6        $     I            $    3             $    14         $    22
                          Net Bene fits                     -$  568      -$   182        -$   684       -$  222            -$    6            -$    62       -$    182

                          Benefit-Cost Ratio                    0.0           0.0              0.0          0.0                 0.3                 0.2            0.1

                          *Consists of affluence factor for     residential contents only.

                                                 N

                             EXISTINO
                             BULKHEAD                               re,11.60am lp        a   a          ago
                                                                                                      .......     seen
                             AND GROINS                       a         086%pa-.111,             a
                                                                 ap                                       east      one
                                                             9                      L.- amr        :6660661 it      sesame,
                                                               a                                    C==@
                                                                                                                    9=44 a
                                                           as
                                                                                                                    ease**                        00 op
                                                                                       Vo    0:7 -"Guam gas
                                                            Sam    so"
                                                                   a                                           I
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                                                         an                             as      as              664:66
                                                                                                                mosses              a
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                                                                                                           a a   :600 as  a
                                                  4                                                                                      7@

                             CaPe Charles Harbor

                                                                                                        Mud Harbor                                        a at k

                                                LEGEND

                                                                   INTERMEDIATE REGIONAL TIDAL FLOOD (100 YEAR)
                                                                   STANDARD PROJECT TIDAL FLOOD

                                               1000                    0                  1000                 2000
                                                  1!@@                                               giiiiia-m-00
                                                                                                  IIf
                                                           go 694" 0
                                                            *aa "66.

                                                             -a a---
                                                          a          a-.  00" so  a

                                                  SCALE(APPROX.)                                             FEET

                                    FIGUEE F-1- CAPE CFLAPJM nom AREA

                                                                                         F-30

                portion of a city-owned bulkhead around Cape Charles Harbor was reconstructed. There
                are city-owned piers and four unloading derricks here. Based on data obtained from a
                visit to the area in 1975, approximately 92 commercial vessels use the harbor each
                year. Inbound and outbound vessels made 2,308 trips to Cape Charles in 1981. The
                Virginia-Maryland Railroad Company maintains a line running the length of the Eastern
                Shore from ports north to Norfolk. Car ferries operate between a railroad in the
                northern portion of Cape Charles Harbor and Little Creek. The nearest commercial
                airline service is at the Norfolk Regional Airport near the southern end of the
                Chesapeake Bay Bridge-Tunnel.

                FUTURE GROWTH WITHOUT PROJECT

                It is questionable whether any material growth in commercial or industrial property can
                be expected in the foreseeable future. If Brown and Root had developed an industrial
                complex in the vicinity of Cape Charles, as it had planned to do, there would have been
                considerable growth in the community. However, this is not the case. There will
                undoubtedly be some additional residential development in the area in the foreseeable
                future. However, in accordance with the'Federal Insurance Act and State regulations,
                -the first floor of future houses will have to be raised or flood proofed to elevation 8, the
                level of the 100-year tidal flood. Any additional commercial development can be
                accommodated in the existing vacant stores.

                STAGE-DAMAGE RELATIONSHIP WITHOUT PROJECT

                The probable future damage from tidal flooding was estimated in the following manner.
                First, a map of the town showing streets and lots was furnished by the mayor. The
                elevation of street intersections was established in the field based on the available bench
                marks. Then the first floor elevation of each of the 538 structures was determined. A
                field inspection of each structure was conducted to establish the elevation of zero
                damage, type of property (residential, commercial, public), loss and condition of
                property, number of stories, basement, residential size (small, average, large),
                furnishings (high, average, low), length and width of commercial property, and its use.

                The above information was fed into a computer which contained stage-damage data for
                different types and classes of property as developed by the Baltimore District, Corps of
                Engineers. Figure F-2 indicates the stage-damage relationship established for Cape
                Charles.

                The damage-frequency relationship was based on the stage-damage curve compiled for
                the area, and the stage-f requency curve shown in Appendix E - Engineering Design and
                Cost Estimates. The potential future flood loss was obtained by multiplying the damages
                occurring in small increments of stage by the annual expectancy of each increment of
                stage, and the resulting incremental losses were summarized to determine the total
                average annual damages up to any tidal flood stage. Table F-15 summarizes the data.

                                                         F-31

                     12

                     11

                     10
                                               oooo@

                                       1.00
                      9
                                   oo/
                  z
                  H
                  ZO                                                                                   FIGURE F-2
                     8-                                                                          CAPE CHAPUES STAGE
                                                                                                 DAMAGE RELATIONSHIP

                      6
                      0           2           4           6           8          10          12          14          16

                                                                      0   OF
                                                       DAMAGE IN MILLI NS    DOLLARS

                                                            TABLE F-15

                                    CAPE CHARLES AVERAGE ANNUAL FLOOD DAMAGES
                                                  (Based on January 1983 Prices)

                        TOTAL          FLOOD                                                          ANNUAL LOSS
                      DAMAGE           STAGE      PROBABILITY                        AVERAGE            TOSTAGE
                         $1,000     ELEVATION        IN YEARS        INTERVAL        INTERVAL             NOTED

                      11,753.00          12.00            0.00                                              $37,423
                                                                        0.100         $8,500

                       5,247.00          10.00        1,000.00                                               28,923
                                                                        0.233          9,328

                       2,748.00          9.00           300.00                                               19,595
                                                                        0.667          11,193

                         610.00          8.00           100.00                                                8,402
                                                                        1.000          4,240

                         238.00          7.40           50.00                                                 4,162
                                                                        0.857          1,581

                         131.00          7.00           35.00                                                 2,591
                                                                        2.143          1,832

                          40.00          6.50           20.00                                                   748
                                                                        3.333             733

                           4.00          6.00           12.00                                                    15
                                                                        0.758          $    15

                           0.00          5.90           11.00                                               $     0

                                                            F-33

                      AFFLUENCE FACTOR BENEFITS

                      Existing procedures permit the use of growth rates for per capita income as the basis for
                      increasing the real value of residential contents in the future to account for the
                      affluence factor. The value of the residential contents may be projected at the per
                      capita income growth rate to a maximum level of 75 percent of the residential
                      structure. However, because of the low benefit-cost ratio, based on existing conditions,
                      it was not considered necessary to incorporate the affluence factor into the economic
                      analysis for the projects under consideration. It would not influence the benefit-cost
                      ratio over 0.2.

                      INUNDATION REDUCTION BENEFITS

                      Flood protection benefits, resulting from raising and/or flood proofing existing buildings,
                      were determined as the differences in the average annual damages under existing
                      conditions and the reduced damages that would result from the proposed nonstructural
                      improvement.

                      AVERAGE ANNUAL COSTS AND BENEFITS

                      Table F-16 presents computations of the average annual costs for the nonstructural tidal
                      flood protection plans considered. Table F-17 indicates the average annual benefits of
                      the plans considered while Table F-18 reflects the net benefits attributable to each plan
                      as well as the benefit-cost ratios of the plans.

                                                                   TABLE F-16

                                      CAPE CHARLES AVERAGE ANNUAL NONSTRUCTURAL COSTS
                                                         (Based on January 1983 Prices)

                                                                                         ANNUAL CHAkWES
                                                                                             Amortiza-
                               Construction            COST SHARING             Interest     tion at         O&M
                      Plan          Cost          Federal     Non-Federal       (0-7/8%      0.182%          1%      TOTAL

                       A        $502,000         $402,000         $100,000      $39,500        $900        $5,000    $45,400

                       B         458,000          366,000            92,000       36,100        800         4,600     41,500

                       C         127,000          102,000            25,000       10,000        200         1,300     11,500
                       D        $103,000         $82,000           $21,000       $8,100        $200        $1,000    $9,300

                                                                   F-34

                                                       'TABLE F-17

                          CAPE CHARLES AVERAGE ANNUAL NONSTRUCTURAL BENEFITS
                                             (Based on January 1983 Prices)

                                                                                      Average
                                         Without              Following               Annual
                Plan                     Project               Improvement            Benefits

                  A                      $37,400                    $32,400             $5,000

                  B                        37,400                     32,200              5,200

                  C                        37,400                     37,200                200
                                         $37,400                    $37,100                $300

                                                       TABLE F-18

                                  CAPE CHARLES NET NONSTRUCTURAL BENEFITS
                                              (Based on January 1983 Prices)

                                Average
                               Annual           Annual              Net                 Benefit-
                Plan            Cost            Benef its         Benef its             Cost Ratio

                 A              $45,400           $5,000           -$40,400                  0.11

                 B                41,500           5,200            -36,300                  0.13

                 C                11,500             200            -11,300                  0.02

                 D                $9,300            $300            -$9,000                  0.03

                HAMPTON ROADS, VIRGINIA

                WITHOUT PROJECT CONDITIONS

                Land for new development is already very scarce in Norfolk and Portsmouth.
                Chesapeake and Virginia Beach have the largest amount of land available for growth.
                Chesapeake will probably be the site of many new industrial and residential
                developments. Chesapeake is actively promoting the former as the 35-foot channel on
                the Southern Branch of the Elizabeth River was recently extended 1.5 miles upstream,
                providing 475 additional acres with access to deep water. A Corps feasibility study
                completed in 1980 recommended the deepening of the existing 35-foot channel between
                River Mile 15 and 17.5 to a depth of 40 feet over the existing channel width.

                                                           F-35

                    The Fox Hill area in Hampton is essentially forested lowland with considerable marshland
                    along the coastline. Of the 1,600 acres in this vicinity, only about 350 acres are
                    developed with about 500 structures. Practically all of these are residential. The
                    commercial establishments are small and housed in old buildings. They consist of a
                    grocery store, two beauty shops, a general contractor, a sign painter, an awning repair
                    shop, a screen printer, and a hide tanner. The value of the contents of residences is
                    about 35 percent of the structure value.

                    FUTURE GROWTH WITHOUT PROJECT

                    The large acreage of marshland in this vicinity will remain undeveloped. Undoubtedly,
                    some additional houses will be built in the fringe areas although they will have to be
                    constructed so that the first floor level will be at or above the elevation of the I 00-year
                    tidal flood. Whether development of any magnitude will be permitted in the remaining
                    low lying area is questionable. No industry or large commercial enterprise can be
                    expected to develop in this area.

                    STAGE-DAMAGE RELATIONSHIP WITHOUT PROJECT

                    A brief study was made of the Fox Hill area of Hampton. This included an examination
                    of available maps, an inspection of the community, and a general field survey. The
                    survey established ground elevations at key points throughout the area and f rom these
                    the first floor elevation of each structure was determined, as well as the elevation of
                    zero damage. The type of property (residential, commercial, public), class and condition
                    of property, residential size (small, average, large), residential furnishings (low, average,
                    high value), and length, width, use and size of commercial property were also determined
                    for each of the 379 buildings in the area. This information was fed into a computer
                    which contained stage-damage data for different types and classes of property as
                    developed by the Corps.

                    One area typical of Fox Hill and Hampton Roads was selected for analysis. The data for
                    the 61 structures encompassed by this area were evaluated by the computer and stage-
                    damages were determined for existing conditions. These estimates were updated to
                    January 1983 price levels and are shown in Figure F-3.

                    The damage-frequency relationship was based on the stage-damage curve compiled for
                    the area, and the stage-f requency curve shown in Appendix E - Engineering Design and
                    Cost Estimates. The potential future flood loss was obtained by multiplying the damage
                    occurring in small increments of stage by the annual expectancy of each increment of
                    stage, and the resulting incremental losses were summed to determine the average
                    annual damage up to any tidal flood stage. Table F-19 indicates the results of this
                    procedure.

                                                             F-36

                  10                                                                              Iz

                                                                      oo-@

                                                                                                       FIGURE F-3

                                                                                                  HAMPTCN-FOX HIlL AREA
                                                                                                 STAGE-DAMAGE 10-ATIONSHIP.

                   6

                   50                                                                                                 2

                                                     DAMAGE IN HUNDREDS OF THOUSANDS OF DOLLARS

                                                                 TABLE F-19

                                   HAMPTON-FOX HILL AREA AVERAGE ANNUAL FLOOD DAMAGES
                                                       (Based on January1983 Prices)

                          TOTAL
                        DAMAGE           FLOOD       PROBABILITY                    AVERAGE ANNUAL LOSS TO
                          $19000         STAGE         IN YEARS       INTERVAL INTERVAL            STAGE NOTED
                        1,805.10           11.00            0.00        0.100      $ 1,754            $100,098
                        1,702.80           10.50       19000.00                                        98,344
                                                                        0.067        1,096
                        19583.80           10.00        600.00                                         97@249
                                                                        0.033           519
                        1,532.50           9.80         500.00                                         96,729
                                                                        0.356        4,985
                        1,271.70           9.00         190.00                                         91,744
                                                                        0.444        5,255
                        1,093.00           8.50         100.00                                         86,489
                                                                        0.667        6,655
                          903.50           8.00           60.00                                        79,834
                                                                        2.179       15,775
                          544.10           7.00           26.00                                        64,059
                                                                        0.154           815
                          514.18           6.90           25.00                                        63,245
                                                                        4.333       16,720
                          256.90           6.00           12.00                                        46,524
                                                                        13.406      22,287
                            75.60          5.00             4.-60      61.594      $24,237             24p237
                             3.10          4.00             1.20                                      $      0

                                                                 F-38

                BENEFITS

                Existing procedures permit the use of growth rates for per capita income as the basis for
                increasing the real value of residential contents in the future to account for the
                affluence factor. The value of the residential contents may be projected at the per
                capita income growth rate to a maximum level of 75 percent of the value of the
                residential structure.

                For example, in the case of Fox Hill where consideration was given to raising 34
                residences up to elevation 6.91, the level of the 25-year flood, the average annual bene-
                fits to residential contents increased from $17,500 to $29,400 over the next 31 years.
                The average annual structural benefits of $32,600 remained the same. Table F-20 shows
                average annual flood reduction benefits for pertinent years based on the above factors.

                Flood protection benefits, resulting from a floodwall or raising existing buildings, were
                determined as the difference in the average annual damage under existing conditions and
                the reduced damages that would result from the proposed improvements.

                                                        TABLE F-20

                               HAMPTON RESIDENTIAL FLOOD REDUCTION BENEFITS
                                  (Average Annual Dollars Based on January 1983 Prices)

                ITEM                                    100-YEAR. PROTECTION          25-YEAR PROTECTION

                EXISTING BENEFIT (1983)
                    Structure                                    $57,100                          $32,600
                    Contents                                       30,700                          17,500
                TOTAL                                            $87,800                          $50,100

                BASE YEAR BENEFIT (1988)
                    Structure                                    $57,100                        $32,600
                    Contents                                       35yiOO                          20,000
                TOTAL                                            $92,200                        552,600
                FUTURE BEN EFITS-U NDISCOU NTED (2014) 1
                    Structure                                    $57,100                        $32,600
                    Contents                                       72000                           41,30
                TOTAL                                            @129,400                       $73,900

                AVERAGE ANNUAL BENEFITS
                    Structure2                                   $57,100                        $32,600
                    Contents                                       51,500                          29,400
                TOTAL                                            $108,600                       $62,000
                    1 Year in which content value will equal 75 percent of structural value.
                    2Undiscounted value less base year value multiplied by 0.4408 average annual
                    equivalence factor for 7-7/8 percent, 26 years, and 50-year project life.

                                                           F-39

                      The inundation reduction benefits computed for Fox Hill for 59 structures raised to the
                      100-year flood level and 34 structures raised to the 25-year flood level are $87,800 and
                      $50,100, respectively.

                      AVERAGE ANNUAL COSTS AND BENEFITS

                      Table F-21 presents computations of average annual costs for the tidal flood protection
                      plans considered while Table F-22 indicates the average annual benefits, net benefits,
                      and benef it-cost ratios for the plans under consideration.

                      POQUOSON, VIRGINIA

                      WITHOUT PROJECT CONDITIONS

                      Poquoson was formerly a rural town dependent on fishing and agriculture. As part of the
                      growing Newport News SMSA, it has now become a residential suburb. Most of the resi-
                      dents are employed at the Newport News Shipyard, National Aeronautics and      iSpace
                      Administration, Langley Air Force Base, and the many commercial and industrial
                      establishments in the Peninsula area. The only job opportunities within Poquoson are in
                      small seafood processing plants, service-type business establishments, and local
                      government agencies.

                      Residential use totalling approximately 1,900 acres -occupies the largest amount of
                      developed land in Poquoson. As of June 1975, there were 1,830 acres in single-family
                      use, 22 acres in mobile homes, 9 in multifamily units, and I acre in two-f amily use. The
                      average size of a single-family residential lot has decreased from 1 acre to
                      approximately 15,000 square feet between 1967 and 1975. This occurred as public water
                      and sewer became available.

                      Commercial use accounts for approximately 55 acres. Most of these commercial uses
                      are scattered along Poquoson Avenue and Wythe Creek Road. Industrial use occupies
                      approximately 13 acres, an increase of about 9 acres between 1967 and 1975. Public and
                      semi-public uses comprise about 60 acres and include the municipal building, a park, two
                      schools, a fire station, churches, and a sanitary landfill site. Public uses are generally
                      concentrated at two locations-The Southwestern Quadrant of'Poquoson and Cedar Roads
                      Intersection and the area between Poplar Road and Freeman Lane. Undeveloped area,
                      covering almost 8,000 acres, makes up between 65-70 percent of the city's land area.
                      Most of the undeveloped area is wetlands and should not be developed for urban uses due
                      to aesthetic and ecological considerations.

                      Figure F-4 shows the extent of the flood problem in Poquoson. It should be noted that
                      the 25-year tidal flood will cover a substantial portion of the city. The total land area of
                      the city is approximately 15.6 square miles and a considerable portion is marshland.
                      Existing land use is shown in Figure F-5.

                                                                 F-40

                                                                                                             TABLE F-21

                                                                                              HAMPTON AVERAGE ANNUAL COSTS
                                                                                                   (Based on January 1983 Prices)

                                                                                        CONSTRUCTION FEDERAL LOCAL                                         AMORTI-
                                                                                              COST            SHARE        SHARE        INTEREST          ZATION       OPERATION AND
                                    PLAN                       DESCRIPTION                (FIRST COST)          (90%)      (20%)        @ 7.875%         @ 0.1920%      MAINTENANCE*            TOTAL

                                    Structural Plan for      6,200 feet of
                                    Protection to 100        floodwall to protect
                                    -year flood level        50 structures to
                                                             8.5-foot flood level        $3,184,000        $2,547,000    $637,000        $250,700             $5,800         $95,500           S352,000

                                    Non-structural Plan      Raise 59 structures
                                    for Protection to        to &5 feet
                                    100-year flood level                                 $2,065,000        $1,652,000    $413,000         $162,600            $3,800         $20,600           $187,000

                                    Nonstructural Plan       Raise 34 structures
                                    for Protection to        to 6.9 feet
                                    25-year flood level                                    $904,000          $723,000    $191,000          $71,200            $1,600          $9,000            $81,800

                                    *Structural O&M @ 3%; Nonstructural O&M @ 1%.

                                                                                                                  TABLE F-22

                                                                                                  HAMPTON AVERAGE ANNUAL BENEFITS
                                                                                                        (Based on January. 1983 Prices)

                                                                        DAMAGES                                    BENEFITS
                                                                                                                                                        AVERAGE                         BENEFIT-
                                                             EXISTING          FOLLOWING             INUNDATION AFFLUENCE                                ANNUAL            NET            COST
                                  PLAN                     CONDITIONS IMPROVEMENTS                   REDUCTION           FACTOR           TOTAL           COSTS         BENEFITS         RATIO

                                  Structural plan for
                                  protection to 100-
                                  year flood level           $100,100             $13,600               $86,500          $20,400       $106,900        $352,000       -$245,100            0.30
                                  Nonstructural plan
                                  for protection to
                                  100-year flood level       $100,100             $12,300               $87,800          $20,800       $108,600        $187,000        -$78,400            0.58

                                  Nonstructural plan
                                  for protection to
                                  25-year flood level        $100,100             $50,000               $50,100          $11,900         $62,000        $81,800        -$ 19,800           0.76

                                                                                                                                                                                                                      -,Ito

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                                                  614

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                                                                                                                                                                                                                                    Po                    Ul
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                                                                                                                                                                                                                                                                                 Pt
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                                                                                                                                                                         1?2                AIR FORCE BASE

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                                                                                                                                                                    134

                                                                                                                                                    AREA ABOVE 25 YEAR TIDAL FLOOD
                             SCALE                                         FEET                                                                     AREA OF DETAILED STUDY
             1\                                                                                                                                                    I                              I
               FIGURE F-4 POQUOSON FLOODAREA

                                                                                                                     EXIST]

                               U.-

                                                                     ..........              .......
                                  ig

                                      W.,

                                                                       N
                                                                                          IVA

                                  ?     ZOOO  4000
                            SCALE            FEET       Source: "A Comprehensive Plan for the City of Poquoson,
                                                                  Virginia" adopted May 1976.

                FUTURE GROWTH WITHOUT PROJECT

                The economic future of Poquoson is inseparable from that of the entire metropolitan
                area. This will continue to be the case since Poquoson does not have a strong employ-
                ment base and must depend on the basic industries of other localities within the SMSA
                for employment of its residents. Thus, the predominantly suburban residential character
                of the city is not expected to change.

                Figure F-6 shows future (proposed) land use in Poquoson. The approximate acreage for
                the different residential categories is shown in Table F-23.

                                                       TABLE F-23

                                     POQUOSON FUTURE RESIDENTIAL LAND USE

                DENSITY                     AVERAGE DWELLING                       APPROXIMATE
                CATEGORY                     UNITS PER ACRE                         ACREAGE

                Low                                   2                                  2,000
                Low to medium                         3                                  2,500
                Medium                                4                                  1,700
                High                                 12                                    200

                SOURCE: Comprehensive Plan adopted May 25, 1976.

                Relative to the commercial sector, a medium-size shopping center was recommended for
                the general business area. Approximately 100 acres are proposed for special waterfront
                business development including seafood markets and processors, boat repair yards, and
                marinas.

                An industrial park which would comprise 400 acres when fully developed is envisioned for
                the areas located along both sides of Little Florida Road (between Wythe Creek Road and
                the Western Corporate Limits). The area is zoned for this development but there are no
                plans at this time to proceed with development.

                Approximately 150 acres of land are proposed for public use, including schools, municipal
                buildings, sanitary landfill sites, and parks and recreation areas. According to the
                comprehensive plan, the new high school, the municipal building and the recreation areas
                which are located between Odd and Cedar Roads should form the center of public
                activities and services in Poquoson.

                STAGE-DAMAGE RELATIONSHIP WITHOUT PROJECT

                In 1980, a field survey was made of this community. This included a field investigation, a
                study of the available maps, and an inspection of the city. The four specific areas
                previously referred to were delineated and a detailed inventory thereof was made. These
                areas encompassed 573 structures.

                                                           F-45

                                                                                                                            RESIDE

                                                                                                                              HIGH

                                                                                                                              MED

                                                                                                                              LOW

                                                                                                                              LOW

                                                                                                                            Comm
                           00
                                                                                                                              LJOC

                                                                                                                              GEN

                                                                                                                              WAT

                                                                                                                              com
                                                                                                                              IND(

                                                                                                                            PUBLI

                                                                                                                            CONSE
                                                                                  -CY1.1. WU
                      . .. ...............                                                                                  MAJO
                                ..............
                                                                                              g
                                                                                                                     $ones- PROP(

                                                                                                                            COLL
                                 Ali
                                        Ile
                                                                                                                            PROK
                                                                                  -@j

                                                                                                    Ao
                                                                                               00,

                                                               00"

                                                                                                         OIL

                        2000          2000   4000
                                                                Source: "A Comprehensive-Plan       for the City
                                                                           of Poquoson, Virginia" adopted May 1976.

                The first floor elevation of each structure was determined, as well as the elevation of
                zero damage, type and use of property (residential, commercial, public), class, condition,
                residential size (small, average, large), furnishings, length, and width. For residential
                structures, the value of the contents of residences varied from 30 percent for Class A or
                above average structures to 4Q percent for Class C or below average structures.

                The above information was fed into a computer which contained stage-damage data for
                different types and classes of property as developed by the Corps. Figures F-7 through
                F-10 indicate the resulting stage-damage data for POQ-1 through POQ-4.

                The damage-frequency relationship was based on the stage-damage curves compiled for
                the area and the Corps stage-frequency curve shown in Appendix E - Engineering Design
                and Cost Estimates. The potential future flood loss was obtained by multiplying the
                damage occurring in small increments of stage by the annual expectancy of each
                increment of stage, and the resulting incremental losses were summarized to determine
                the total average annual damage for any tidal flood stage. Tables F-24 through F-27
                indicate the results for the areas investigated.

                AFFLUENCE FACTOR BENEFITS

                Existing procedures permit the use of growth rates for per capita income as the basis for
                increasing the real value of residential contents in the future to account for the
                affluence factor. The value of the residential contents may be projected at the per
                capita income growth rate to a maximum level of 75 percent of the value of the
                residential structure. For example, in the case of POQ-4 wherein consideration was
                given to raising 182 residences up to elevation 7, the level of the 25-year flood, the
                average annual benefits to residential contents increased from their present amount of
                $65,600 to $105,100 over the next 26 years. The average annual structural benefits of
                $118,700 remained the same.

                INUNDATION REDUCTION BENEFITS

                Flood protection benefits, resulting from purchasing and demolishing and/or raising
                existing buildings, were determined as the difference in the average annual damage under
                existing co'nditions and the reduced damages that would result from the proposed
                nonstructural improvement. The inundation reduction benefits computed for the various
                areas are shown in Table F-28.

                AVERAGE ANNUAL COSTS AND BENEFITS

                Table F-29 presents computations of the average annual costs for the nonstructural tidal
                flood protection plans considered while Table F-30 presents the average annual benefits
                determined for the plans examined. Table F-31 indicates the net benefits attributable to
                each plan as well as the benefit-cost ratio.

                                                            F-47

                     13

                     12

                     0

            00     z

                                                                                                        FIGURE F-7

                     q
                                                                                                    POQUOSON AREA ONE
                                                                                                      STAGE-DAMACES

                     8

                     7
                       0                                               1                                               2

                                                        DAMAGE IN MILLIONS OF DOLLARS

                    12

                    11

                    .10

                   U!

                   0

                      9
                                                 00or
                   Eli
                   pr4

                   z

                   z
                   0                                                                                        FIGURE F-8

                                                                                                         POQLUSON AREA TWO
                                                                                                           STAGE-DAMAGES

                                                                                                                            2
                                                          DAMAGES IN MILLIONS OF DOLLARS

                       10                                                     Ao

                                                                       10,

                      9                                          1-4
                                                             ooo/

                   El
                      8

                   z
                   1-4                      z
                                           00,
                                                                                                          FIGURE F-9
                      7              z
                                    00,                                                             POQUOSON AREA TBM
                   @4
                                                                                                        STAGE-DAMAGES

                      6

                      5
                        0                                               2                        3                       4

                                                            DAMAGE IN MILLIONS OF DOLLARS

                       10

                       9                                                     .00

                                                                 OOO-Z

                       8
            Cil                                            oor

                    z
                    F4

                    z
                    0
                    H
                       7

                       6                                                                                           FIGUIE F-10
                                                                                                                POQLTOE30N AREA FOUR
                                                                                                                   'STAGE-DAMAGES

                       5
                       4@
                        0                          4                          8                         12                         16            18
                                                               DAMAGE IN MILLIONS OF DOLLARS

                                                                   TABLE F-24

                                                            POQUOSON AREA ONE
                                                    AVERAGE ANNUAL FLOOD DAMAGES
                                                         (Based on January 1983 Prices)

                      TOTAL                                                                      ANNUAL LOSS
                     DAMAGE           FLOOD PROBABILITY                           AVERAGE          TOSTAGE
                       $1,000         STAGE        IN YEARS        INTERVAL INTERVAL                  NOTED

                       588.10         11.00             0.00                                           $3,258
                                                                     0.100          $433
                       278.80         10.00        1,000.00                                             2,824
                                                                     0.100           268
                       257.40         9.80          500.00                                              2,556
                                                                     0.371           788
                       167.10         9.00          175.00                                              1,768
                                                                     0.429           528
                        79.20         8.50          100.00                                              1,240
                                                                     0.667           355
                        27.30         8.00            60.00                                               885
                                                                     2.333           517
                        17.00         7.00             25.00                                              368
                                                                     4.333          $368
                         0.00         6.00             12.00                                          $     0

                                                               F-52

                                                               TABLE F-25

                                                         POQUOSON AREA TWO
                                                 AVERAGE ANNUAL FLOOD DAMAGES
                                                     (Based on January 1983 Prices)

                    TOTAL                                                                    ANNUAL LOSS
                  DAMAGE          FLOOD      PROBABILITY                      AVERAGE           TOSTAGE
                    $1,000        STAGE         IN YEARS        INTERVAL      INTERVAL            NOTED

                    1,112.80        11.00           0.00                                          $15,021
                                                                 0.100        $ 990
                    867.60          10.00       1,000.00                                           14,030
                                                                 0.100            825
                    782.10          9.80         500.00                                            13,206
                                                                 0.371         2,498
                    563.10          9.00         175.00                                            10,707
                                                                 0.429         2,098
                    415.80          8.50         100.00                                            8,610
                                                                 0.667         2,322
                    280.80          8.00          60.00                                            6,288
                                                                 2.333         4,209
                       80.00        7.00          25.00                                            2,078
                                                                 4.333         11983
                       11.50        6.00          12.00                                                96
                                                                 1.667        $    96
                           0        5.80          10.00                                            $     0

                                                            F-53

                                                                TABLE F-26

                                                        POQUOSON AREA THREE
                                                 AVERAGE ANNUAL FLOOD DAMAGES
                                                      (Based on January 1983 Prices)

                          TOTAL                                                                   ANNUAL LOSS
                        DAMAGE        FLOOD PROBABILITY                            AVERAGE          TOSTAGE
                          $1,000      STAGE         IN YEARS        INTERVAL INTERVAL                  NOTED

                        2,437.80        11.00           0.00                                          $66,477
                                                                     0.100         $2,290
                        2,142.80        10.00       1,000.00                                           64,187
                                                                     0.100          2,111
                        2,079.00        9.80          500.00                                           62,076
                                                                     0.371          6,956
                        19666.80        9.00          175.00                                           55,119
                                                                     0.429          6,499
                        1,366.20        8.50          100.00                                           48,620
                                                                     0.667          8,156
                        1,080.70        8.00          60.00                                            40,464
                                                                     2.333          19,100
                           556.40       7.00          25.00                                            21,364
                                                                     4.333          15,204
                           145.30       6.00          12.00                                              6,161
                                                                     1.667          2,201
                           118.80       5.80          10.00                                              3,960
                                                                     6.667         $3,960
                             0.00       5.00            6.00                                           $     0

                                                                F-54

                                                           TABLE F-27

                                                    POQUOSON AREA FOUR
                                             AVERAGE ANNUAL FLOOD DAMAGES
                                                  (Based on January 1983 Prices)

                     TOTAL                                                                   ANNUAL LOSS
                   DAMAGE        FLOOD PROBABILITY                            AVERAGE          TO STAGE
                      $1,000      STAGE        IN YEARS        INTERVAL INTERVAL                 NOTED
                   llp287.60       11.00           0.00          0.100      $ 10,551            $416,631
                   9,814.50        10.00       1,000.00                                          406,080
                                                                 0.100          9,560
                   9,306.00        9.80          500.00                                          3969519
                                                                 0.371        31,643
                   7,732.70        9.00          175.00                                          364,876
                        -                                        0.429        30,784
                   6,633.00        8.50          100.00                                          334,092
                                                                 0.667        40,046
                   5,380.80        8.00           60.00          2.333        99,029             294,046
                   3,107.40        7.00           25.00          4.333        97,734             195,017
                   1,403.40        6.00           1'2.00         8.333        76,196               97,283
                      425.30       5.00            6.00                                            21,087
                                                                 8.333        18,562
                       20.20       4.00            4.00                                             2,525
                                                                25.000      $ 2,525
                         0.00      3.00            2.00                                          $      0

                                                           F-55

                                                              TABLE F-28

                                         POQUOSON INUNDATION REDUCTION BENEFITS
                                                    (Based on January 1983 Prices)

                                                                                     INUNDATION REDUCTION
                     AREA                                   PLAN                              BENEFITS

                     POQ-I*                                                                             -
                     POQ-2                  Relocate 96 trailers                               $ 15,000

                     POQ-3                  Raise 45 structures to 100-year
                                             flood level                                           39,200

                     POQ-3                  Raise 9 structures to 25-year
                                             flood level                                           17,600

                     POQ-4                  Raise 383 structures to 100-year
                                             flood level                                          362,000

                     POQ-4                  Raise 182 structures to 25-year
                                             flood level                                          184,300

                     POQ-4                  Raise 124 structures to 25-year
                                             flood level and purchase and
                                             demolish 58 structures                               208,500

                     POQ-4                  Purchase and demolish 25 structures
                                             below 10-year flood level                         $ 27,800

                     *No improvement considered.

                                                                  F-56

                                                                                                        TABLE F-29

                                                                               POQUOSON AVERAGE ANNUAL NONSTRUCTURAL COSTS
                                                                                               (Based on January 1983 Prices)

                                                                                                                                                         OPERATION
                                                                                                                                             AMORTI-         AND            TOTAL
                                  PLAN            LEVEL OF                     CONSTRUCTION FEDERAL LOCAL                     INTEREST       ZATION     MAINTENANCE        ANNUAL
                                  AREA         PROTECTION *ELEVATION                  COST          SKARE        SKARE        @ 7-7/8%       @ 0.182%        @ 1%            COSTS

                                  POQ-2           Complete                          $792,000     $634,000      $158,000       $62,400        $1,400          $7,900         $71,700
                                  POQ-3           100-year           g.5            1,008,000      806,000       202,000      79,400           1,800         10,100          91,300

                                  POQ-3           25-year            7.0            199,000        159,000        40,000      15,700             400           2,000         18,100

                                  POQ-4           100-year           8.5            8,754,000    7,003,000     1,751,000      689,400        15,900          87,500         792,800

                                  POQ-4           25-year            7.0            39902,000    3,122,000       M,000        307,300          7,100         39,000         353,400
                                  POQ-41          25-year            7.0            5,127,000    4,102,000     1,025,000      322,500          7,400         51,300        381,2002
                                  POQ-43          10-year            5.8            $978,000     $792,000      $196,000       $42,000        $1,000          $9,800        $52,8002

                                  'Purchase and demolish 58 structures.   Raise 124 structures.
                                  2Excludes interest and amortization on cost of resettlement.
                                  3Purchase and demolish 25 structures.

                                  NOTE: Costs are computed based on a 50-year project life.

                                                                  TABLE F-30

                                      POQUOSON AVERAGE ANNUAL NONSTRUCTURAL BENEFITS
                                                        (Based on January 1983 Prices)

                                                   AVERAGE ANNUAL DAMAGE AVERAGE ANNUAL BENEFITS
                               Plan                              Following            Inundation Af fluenc
              Area         Considered              Naturally     improvement          reduction       f actor f  Total
              POQ-2 Complete relocation             $15,000           $      0         $15,000                   $15,000

              POQ-3 100-year flood level              66,500           27,300            39,200         -          39,200

              POQ-3     25-year flood level           66,500           48,900            17,600       $3,700       21,300

              POQ-4     100-year flood level        416,600            54,600          362,000          -        362,000
              POQ-4     25-year flood level         416,600           232,300          184,300        $39,500    223,800
              POQ-4     25-year flood. leve12       416,600           208plOO          208@500        $44,700    253,200
              POQ-4     10-year flood leve13       $416,600          $388,800          $27,800          -        @27,800

              I
              2Not determined in all cases. B-C ratio considerably less than 1.0.
              3Purchase and demolish structures. Raise others.
               Purchase and demolish structures.

                                                                  F-58

                                                            TABLE F-31

                               POQUOSON NET NONSTRUCTURAL BENEFITS AND B-C RATIOS
                                                  (Based on January 1983 Prices)

                                                                            AVERAGE                      BENEFIT-
                PLAN                       PLAN                ANNUAL        ANNUAL            NET          COST
                AREA                  CONSIDERED                COSTS       BENEFITS BENEFITS               RATIO

                POQ-2              Complete relocation        $71,700       $15,000      -$56,700             0.21

                POQ-3               100-year flood level        91,300        39,200        -52,100           0.43

                POQ-3               25-year flood level         18,100        21,300          3,200           1.18

                POQ-4               100-year flood level      792,800       362,000      -430,800             0.46

                POQ-4               25-year flood level       353,400       223,800      -129,600             0.63
                POQ-41              25-year flood level       381,200       253,200      -  1282000           0.66.
                POQ-42              10-year flood level       $52,800       $27,800      -$252000             0.53

                I
                2Purchase and demolish structures. Raise others.
                 Purchase and demolish structures.

                                                            F-59

                     TANGIER ISLAND, VIRGINIA

                     WITHOUT PROJECT CONDITIONS

                     Tangier Island is susceptible to tidal flooding - the extent depending on the level of the
                     stillwater stage. Based on Corps frequency datap the I 00-year tidal flood of elevation
                     8.51 would inundate the entire island and all the structures would be damaged to a
                     degree. Damage would exceed $1.3 million to residential and commercial property.
                     Based on VIMS frequency data, the 100-year tidal flood elevation of 4.11 would cause
                     damage approaching $68,000. Under the Corps frequency data, an extremely rare storm,
                     exceeding the 100-year tidal flood, would create a serious tidal flood problem on the
                     island. The lives of some of the islanders would be threatened and 298 residential, 25
                     commercial, and 7 public units would receive major damage.

                     FUTURE GROWTH WITHOUT PROJECT

                     It is anticipated that there will be little growth on the island. All available land is
                     occupied. There appears to be sufficient space for present inhabitants, however future
                     generations will find it difficult to expand on the considerable amount of available
                     marshland unless restrictions on f illing this land are lifted. At present, this does not
                     appear likely.

                     Businesses will have the same difficulty as the inhabitants in locating additional land
                     area for expansion. The main industry is fishing and Tangier's economy is directly
                     dependent on this source of income.

                     STAGE-DAMAGE RELATIONSHIP WITHOUT PROJECT

                     The stage-damage relationship was established for the structures on Tangier Island.
                     First-floor elevations of the 331 structures were determined by field survey. A field
                     inspection of each structure was conducted to establish the elevation of zero damage,
                     type of property (residential, commercial, public), class and condition of property,
                     number of stories, existence of basement, residential size (small, average, large), class of
                     furnishings (high,' average, low), length and width of commercial property and its use.
                     This information was fed into a computer which contained stage-damage data for
                     different types and classes of property as developed by the Corps of Engineers. Figure
                     F- I I indicates the stage-damage relationship established for Tangier.

                     The damage-frequency relationship was based on the stage-damage curve computed for
                     the area and the stage-f requency curves shown in Appendix E - Engineering Design and
                     Cost Estimates. The potential future flood loss was obtained by multiplying the damages
                     occurring in small increments of stage by the annual expectancy of each increment of
                     stage. The resulting incremental losses were summed to determine the total average
                     annual damages up to any tidal flood stage. Table F-32 summarizes the data.

                                                              F-60

                    10

                    9

                    8

                                                                                                          FIGUIRE F-11

                                                                                                         TANGIER ISLAND
                                                            e0ool,                                 STAGE-DAMAGE RELATIONSHIP

                    6

                    5
                                                                        4
                     0                         2           3                         5           6            7            8           9
                                                        DAMAGE IN MILLIONS OF DOLIARS

                                                             TABLE F-32

                                          TIDAL STAGE-DAMAGE DATA FOR TANGIER*
                                                   (Corps of Engineers Frequeniffies)

                          TOTAL                                                                    ANNUAL LOSS
                        DAMAGE          FLOOD PROBABILITY                           AVERAGE           TO STAGE
                          $1,000        STAGE        IN YEARS        INTERVAL INTERVAL                  NOTED

                       7,643.00         11.00           0.00                                          $481,734
                                                                       0.100      $ 7,310
                       6,978.00         10.00        1,000.00                                           474,423
                                                                       0.100          69894
                       6,811.00         9.80           500.00                                           467,529
                                                                       0.371        23,835
                       6,023.00         9.00           175.00                                           443,694
                                                                       0.429        24,574
                       5,445.00         8.50           100.00                                           419,120
                                                                       0.667        33,843
                       49708.00         8.00           60.00                                            385,277
                                                                       2.333        93,602
                       3,315.00         7.00           25.00                                            291,675
                                                                       4.333        113,858
                       1,940.00         6.00           12.00                                            177,817
                                                                       1.667        30,192
                       1,683.00         5.80           10.00                                            147,625
                                                                       6.667        84,333
                          847.00        5.00            6.00                                             63,292
                                                                       8.333        45,542
                          246.00        4.00            4.00                                              17,750
                                                                       8.333        11,417
                           28.00        3.00            3.00                                              6,333
                                                                       16.667         3,333
                           12.00        2.00            2.00                                               3,000
                                                                       50.00      $ 3,000
                            0.00        1.00            1.00                                            $      0

                     *Based on January 1983 price levels.

                                                                 F-62

                AFFLUENCE FACTOR BENEFITS

                Existi ng procedures permit the use of per capita income growth rates as the basis to
                increase the real value of residential contents in the future to account for the affluence
                f actor. The residential units on Tangier are middle class homes of the $ 10,000 to $25,000
                range. The value of the contents was assumed to be 40 and 35 percent, respectively.

                The value of the residential contents may be projected at the per capita income growth rate
                to a maximum   'level of 75 percent of the value of the residential structure. Table F-33
                shows projected per capita income for the period 1970 - 2020 for BEA Economic Area 017
                which includes Tangier.

                                                         TABLE F-33

                                     PER CAPITA INCOME, BEA ECONOMIC AREA 017

                          YEAR                                                 AMOUNT (1967 $)

                          1970                                                          3,570

                          1980                                                          4,800

                          1990                                                          6)200

                          2000                                                          8,200

                          2020                                                          13,400

                INUNDATION REDUCTION BENEFITS

                Flood protection by walls is positive up to the height of this type of protection. The
                average annual benefits to be derived from building a wall or berm were taken as the
                average annual damages eliminated from floods up to the stage that would be controlled,
                exclusive of f reeboard.

                Based on the per capita income estimates and the 75 percent of structure value maximum
                limitation, projections were made for the 25-year and the 100-year event for Corps
                frequency data. By using the above data, content values in residential structures increased
                from $7,200 at present to $14,700 in 2009. Table F-34 shows average annual flood reduction
                benefits for pertinent years based on the above discussion for the 100-year Corps frequency
                plan.

                Flood protection benefits, resulting from raising and/or flood proofing existing buildings,
                were determined as the difference in the average annual damages under existing conditions
                and the reduced damages that would result from the proposed nonstructural improvement.

                AVERAGE ANNUAL COSTS AND BENEFITS

                Table F-35 presents annual costs for the structural and nonstructural plans considered.
                Table F-36 indicates the average annual benefits determined for the plans considered.

                                                           F-63

                                                           TABLE F-34

                                    TANGIER RESIDENTIAL FLOOD REDUCTION BENEFITS*
                                                  (Based on January 1983 Prices)

                    ITEM                                                                   AMOUNT

                    EXISTING BENEFIT (1983)
                      Structure                                                           $242@441
                      Contents                                                              142' 386
                    TOTAL                                                                 $384P827

                    BASE YEAR (1988)
                      Structure                                                           $242,441
                      Contents                                                              161' 927
                    TOTAL                                                                 $4041368

                    FUTURE BENEFITS- UNDISCOUNTED            (2009)
                      Structure                                                           $242,441
                      Contents                                                              288,660
                    TOTAL                                                                 @531,101

                    AVERAGE ANNUAL BENEFITS
                      Structure                                                           $242,441
                      Contents                                                              226,362
                    TOTAL                                                                 $468,803

                    *Affluence calculations applied only to residential portion of benefit; commercial benefits
                    remain constant.
                     I Year in which content value will equal 75 percent of structure value.
                     2Undiscounted value less base year value multiplied by 0.5323 average annual'equivalence
                     factor for 7-7/8 percent, 21 years, 50-year project life.

                                                             F-64

                                                                                                                       TABLE F-35

                                                                                  TANGIER ANNUAL COSTS OF STRUCTURAL AND NONSTRUCTURAL PLANS
                                                                                                             (Based on January 1.983 Prices)

                                                                                                                                             ANNUAL CHARGES
                                                              CONSTRUCTION                                                       INTEREST AMORTIZATION
                                     PLAN                           COST            FEDERAL SHARE LOCAL SHARE                    @ 7-7/8%           @ 0.182%             O&M3             TOTAL

                                                                                                                  STRUCTURAL PLANS
                                     100-yr (01                   $24,891,000             $19,913,000       $4,978,000          $1,960,200             $45,300        $497,800          $2,503,300
                                     St. Proj. Fld (C)2           $1,697,000               $1,358,000         $339,000            $133,600               $3,100         $33,900           $170,600

                                                                                                               NONSTRUCTURAL PLANS

                                     100-yr (C)                   $7,781,000               $6,223,000        $1,556,000           $612,800              $14,200         $77,800           $704,800
                                     25-yr (C)                      5,227,000               4,182,000         1,045,000             411,600               9,500          52,300             473,400
                                     100-yr (V)                   $ 180,000               $ 144,000          $ 36,000             $ 14,200              $ 300          $ 1,800            $ 16,300

                                           IC = Frequency based on Corps estimate; V = Frequency based on VIMS estimate for Guard shores.
                                           2Protection of School
                                           35tructural O&M at 2 percent, Nonstructural O&M at I percent.

                                                              TABLE F-36

                                              TANGIER AVERAGE ANNUAL BENEFITS
                                                    (Based on January 1983 prices)

                                                       Average annual damages                        Average
                                                                  With plan of                  annual inundation
                      Plan                    Existing            protection                    reduction benefits

                                                        STRUCTURAL PLANS

                      100-yr (C)*             $481,700                   $62,700                     5419,000
                      St. Proj.
                      Fid (C)                 $481,700

                                                      NONSTRUCTURAL PLANS

                      100-yr (C)              $481,700                   $31,600                     $450,100
                      25-yr (C)                 4819700                  170,000                       3119700
                      1 00-yr M               $ 49,600                 $ 259800                      $23,800

                      *C = frequency based on Corps estimate; V = frequency based on VIMS estimate.

                      **Not determined. School protected to. provide a haven for people on island during major
                      tidal flooding.

                                                                 F-66

                 Table F-37 indicates the net benefits attributable to each plan as well as the benefit/cost

                 ratios.

                                                         TABLE F-37

                                              TANGIER ECONOMIC ANALYSIS
                                               (Based on January 1983 Prices)

                                                     AVERAGE ANNUAL NET ANNUAL                    BENEFIT-
                 PLAN          ANNUAL COSTS                BENEFITS           BENEFITS         COST RATIO

                                                    STRUCTURAL PLANS
                 100-yr (C)        $2,503V300               $419,000           -$2,084,300          0.17 1
                 St. Proj.
                 Fld -(C)          $ 170,600        Not determined                                      -

                                                 NONSTRUCTURAL PLANS
                 100-yr (C)          $704,800               $534,100           -$ 170,700           0.76   2
                 25-yr (C)             473,400               370,500              -102,900          0.78   2
                 100-yr M            $ 16t3OO               $ 23,800                $7,500          1.46   3
                 lAffluence factor benefit not projected since b-c ratio is very small.
                 21ndicates effect of including affluence factor benefits.
                 3
                  Affluence factor benefit not projected since b-c ratio is greater than 1.0.

                                                             F-67

                    WEST POINT, VIRGINIA

                    WITHOUT PROJECT CONDITIONS

                    Natural marshlands and residential and public land uses make up approximately 93
                    percent of the land use in West Point. The Chesapeake Corporation is the largest
                    industrial site within the town. The topography and flooded area in West Point are shown
                    in Figure F-12. Elevations were established by the Corps at street intersections at and
                    below 15th Street. Excluding the thesapeake Corporation plant, practically all of the
                    area (240 acres) at and below elevation 101 is located downstream from 15th Street.
                    About 70 acres and 25 buildings are on the ground which is at or below the elevation 51
                    contour. Approximately 100 buildings are located on the 40 acres between the 5- and 10-
                    foot contours. The remaining land located in this urbanized area below 15th Street is not
                    more than a foot above elevation 101.

                    The entire area below 15th Street is well developed. Of the 380 structures, 58 are
                    commercial developments, 3 are public buildings, and the remainder are residences. The
                    value of the contents of residences generally varies from 30 percent for class A (above
                    average structure) to 40 percent for class C (below aver@ige structure).

                    FUTURE GROWTH WITHOUT PROJECT

                    Since the section of town below 15th Street is quite fully developed, it is questionable
                    whether any material growth of commercial or residential property of consequence can
                    be expected in this area. Some expansion can be expected, generally north of 15th
                    Street, as the population and activities at West Point increase in proportion to the
                    increase in the county. However, in accordance with the Federal Insurance
                    Administration acts and State regulations, the first floor of future buildings will have to
                    be raised to the elevation of the 100-year tidal flood or flood proofed to this level.

                    STAGE-DAMAGE RELATIONSHIP WITHOUT PROJECT

                    The probable future damage from tidal flooding was estimated exclusive of any damage
                    to be sustained by the Chesapeake Corporation. A map of the town showing streets and
                    lots was obtained. The elevation of street intersections was established in the field
                    based on available bench marks. Then the first floor elevation of 380 structures was
                    determined. A field inspection of each structure was conducted to establish the
                    elevation of zero damage, type of property, class and condition of property, number of
                    stories, basement, residential size (small, average, large), furnishings, and length and
                    width of commercial property and its use. This inf ormation was f ed into a computer
                    which contained stage-damage data for different types and classes of property as
                    developed by the Corps. Figure F-13 indicates the resulting stage-damage data
                    developed for West Point.

                    The damage-frequency relationship was based on the stage-damage curve compiled for
                    the area, and the stage-f requency curves as determined by the Corps and/or VIM S. The
                    potential future loss was obtained by multiplying the damages occurring in small
                    increments of stage by the annual expectancy of each increment of stage. The resulting
                    incremental losses were summed to determine the- average annual damage up to any tidal
                    flood stage. Tables F-38 and F-39 indicate the results.

                                                             F-68

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                                                               ------------
                 LEGEND                                               L

                                                                                      A
                             5' Contour Intervol
                             10'Comtour Int*rval
                                                                               ads    0:
                                                                                                           FIGURE F-12

                                                                                      sL!
                  a-qo     0      Soo      1000   1500                                              WEST   POINT FLOOD AREA
                                                FE-M"
                   SCALE                        FEET

                                                                  F-69

                    10

                      9

                   0

                      8

                   rX4

                   z

                   z
                   0
                                                                                                      FIGURE F-13

                                                                                                   WEST POINT STAGE-
                   w                                                                              DAMAGE RKATIONSHIP

                      5
                      0                                              2                       3                       4

                                                       DAMAGE IN MILLIONS OF DOLLARS

                                                               TABLE F-38

                             WEST POINT AVERAGE ANNUAL FLOOD DAMAGES - CORPS FREQUENCY
                                                      (Based on January 1983 Prices)

                    TOTAL                                                                    ANNUAL L05S
                   DAMAGE         FLOOD      PROBABILITY                      AVERAGE            TOSTAGE
                    $19000        STAGE         IN YEARS        INTERVAL INTERVAL                NOTED
                   3,505.80         11.00          0.00           0.160          $2,789             $62,477
                   2,072.30         10.00       1,000.00          0.100           1,947              59,688
                   1,821.60         9.80          500.00                                             57,741
                                                                  0.371           5,518
                   1,149.60         9.00          175.00                                             52,223
                                                                  0.429           4,415
                    910.80          8.50          100.00                                             47,808
                                                                  0.667           5,368
                    699.70          8.00           60.00                                             42,440
                                                                  2.333          129399
                    363.10          7.00           25.00                                             30,040
                                                                  4.333          129311
                    205.10          6.00           12.00                                             17,729
                                                                  8.333          12,046
                       84.00        5.00           6.00                                                5,683
                                                                  8.333           4YO46
                       13.10        4.00           4.00                                                1,638
                                                                  25.000        $ 1,638
                           0        3.00           2.00                                              $     0

                                                            F-71

                                                                      TABLE F-39

                                    WEST POINT AVERAGE ANNUAL FLOOD DAMAGES - VIMS FREQUENCY
                                                            (Based on January 1983 Prices)

                          TOTAL                                                                       ANNUAL LOSS
                        DAMAGE           FLOOD      PROBABILITY                       AVERAGE           TOSTAGE
                          $1,000         STAGE        IN YEARS         INTERVAL       INTERVAL             NOTED
                         1,148.40        9.00             0.00          0.100         $ 845             $  25,  591
                          542.50         7.60         1,000.00                                             24,745
                                                                        0.100             453
                          364.30         7.00           500.00                                             24,292
                          205.90         6.00           120.00          0.633           1,806              22,486
                                                                        0.167             337
                          198.00         5.90           100.00                                             22,150
                                                                        1.000           1,644
                          130.70         5.40            50.00                                             20,506
                                                                        2.762           20954
                            83.20        5.00            21.00                                             17,552
                                                                       28.571         13,586
                            11.90        4.00             3.00         66.667       $ 3,967                  3,967
                             0           3.00             1.00                                                   0

                     AFFLUENCE FACTOR BENEFITS

                     Existing procedures permit the use of per capita income growth rates as the basis for
                     increasing the real value of residential contents in the future and account for the
                     affluence factor. The value of the residential contents may be projected at the per
                     capita income growth rate up to a maximum level of 75 percent of the value of the
                     residential structure. Since the affluence factor benefit increased the benefit-cost ratio
                     by only 0.1 to 0.2, -it was not computed for raising structures to the I 00-year level since
                     the benefit-cost ratio was only 0.5 or less. In the case of the structures raised to the
                     Corps 25-year tidal level, the affluence factor increased the average annual benefits by
                     $7,100.

                     INUNDATION REDUCTION BENEFITS

                     Flood protection benefits, resulting from raising existing buildings, were determined as
                     the difference in the average annual damage under existing conditions and the reduced
                     damages that would result from the proposed nonstructural improvement. The inundation
                     reduction benefits computed for the Corps and VIMS stage-f requency data are shown in
                     Table F-40.

                                                                    F-72

                                                   TABLE F-40

                                WEST POINT INUNDATION REDUCTION BENEFITS
                                          (Based on January 1983 Prices)

               Stage Frequency         Frequency          Number of        Inundation Reduction
                 data by               in Years           Structures           Benefits

                 Corps                      100                 43                $40,200

                 Corps                       25                  17                31,200

                 VIMS                       100                  15                11,200

                 VIMS                        25                  3                $7,700

               AVERAGE ANNUAL COSTS AND BENEFITS

               Table F-41 shows the average annual costs for the nonstructural tidal flood protection
               plans considered. Table F-42 indicates the benefits for the plans considered while Table
               F-43 indicates the net benefits attributable to each plan as well as the benefit-cost
               ratios.

                                                       F-73

                                                                                                                    TABLE F-41

                                                                                          WEST POINT AVERAGE ANNUAL NONSTRUCTURAL COSTS
                                                                                                           (Based on January 1983 Prices)

                                    STAGE                                                                                                            ANNUAL CHARGES
                                    FREqUENCY           LEVEL OF         CONSTRUCTION            FEDERAL              LOCAL            INTEREST      AMORTIZATION                O&M
                                    DATA BY            PROTECTION                C05T             SHARE               SHARE            @ 7-7/8%          @ 0. 182%              @ 1%               TOTAL

                                    Corps                I 00-yr.          $1,048,000            $838,000           $210,000              $82,500           $1,900               $10,500          $94,900

                                    Corps                  25-yr.             465,000             372,000              93,000              36,600               goo                 4,700           42,100

                                    VIM5                  100-yr.             340,000             272,000              68,000              26,800               600                 3,400           30,800
                                    VIMS                   25-yr.             $90,000            $72,000             $18,000               $7,100             $200                $ 900            $8,200

                                                                     TABLE F-42

                                      WEST POINT AVERAGE ANNUAL NONSTRUCTURAL BENEFITS
                                                          (Based on January 1983 Prices)

                                                  AVERAGE ANNUAL DAMAGE AVERAGE ANNUAL BENEFITS
                 Stage
                 Frequency        Level Of        Without         Following            Inundation      Af fluence
                 Data By         Protection       Project        Improvement           Reduction        Factor      Total
                 Corps             100-yr.        $629500          $22@300               $40,200                    $40,200
                 Corps              25-yr.          62,500           31,300               31,200      $7,100         38,300

                 VIMS              100-yr.        .25,600            14,400               11,200                     11,200
                 VIMS               25-yr.        $25,600          $17,900               $7,700       $1,700        $9,400

                 *Not determined.

                                                                TABLE F-43

                                 WEST POINT NET NONSTRUCTURAL BENEFITS AND B-C RATIOS
                                                      (Based on January 1983 Prices)

                 Stage                                                        Average
                 Frequency                 Level Of           Annual          Annual              Net         Benefit-
                 Data By                  Protection            Costs         Benef its       Benefits      Cost Ratio
                 Corps                      100-yr.          $94,900         $40,200         -$54,700             0.42

                 Corps                       25-yr.           42,100          38,300           -3p8OO             0.91

                 VIMS                       100-yr.           30,800          11,200          -19,600             0.36
                 VIMS                        25-yr.          $8,200           $9,400         $ 1,200              1.15

                                                                F-75

                                        ANNEX F-I

                                       CAMBRIDGE

                                STAGE-DAMAGE AND AVERAGE
                              ANNUAL DAMAGE COMPUTATIONS

                                         F-I-I

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                                                    BAS f N                                           REACH                                  LT. RT.
                     CALCULATION OF                        CqES,4PF-A14E 3AY                               CAMZ;Z1QGE, H                       CjAlb
               AVERAGE ANNUAL DAMAGES 7R-IBUTARY                                                      UPSTREAM LIIIT      OF REACH
                 C
                              F
                               = C r
                     @1 B71                                ct4op-rAmw- rz%VJE                               WA
              ZYPE OF DAMAGE                         STREAM                                           DOWNSTREAM LI       IT OF REACH
                                                                         A                                  A/ 7Am
              PRICE LEVEL OF ICONDITIONS OF REFERENCE G9GE OR POINT                                                       /ira I CHECKED
                                                                                    111RAINAGE               Byl DA7E
                                                                                      AREA,5Q.Mj. rOMPUTED                    , ,,nDATE
              JUL                    ASE             cdHZQ106-E            11.0                       J"                  -7/                 -;@/80

                                             STAGE (Ft            FREQUENCY            DAMAGES (Dollars)                  AVE. AN UAL DAMAGES
                 FLOOD       DISCHARCE                                                      KI a                              _2s.1006
                                (cfa)         RF        USL       %      IntervaiL    At Stage          Average           Interval       Summation
                                 (2)          (3)       (4)       (5)     (6)             (71               @8)             (9)             (10)
                                                        -3: -     43       0             0                 0.0            6.0               0.0
                                                        4         8.2. 1 54-180       251             1 Z's-To            4,367          4.367
                                                        5         2.4                 111.4                                              8.326
                                                                  -      1. 5,wo                      zoz.S!50            3.,Zoo -
                                                                  6,qz-               291-7                                              11-526
                                                        1         10.31  0.51         620-4           4-17 0 5 0          1 1 11         /3.755
                                                                  0.1.s  0.16         1100.1          Z40-(ooO            1.34-5         15.100
                                                                  -01014-                             14Z 1    0!50       1 - YS G
                                                                                      1-743                                 -
                                                                         0,011                          1 (6              0, Z 3
                                                        16        oAs-                '25!ao. ?                                     1    16@ 674
                                                                                                      @0917S6             D-03
                                                                  0.032  0.00(o       I (P t 4,&D     41 &4,40(3          6,zso          17-076-
                                                        1 z       462(a  0,60S        4714.7.         U344,700.           0.2 (a 7       17-32(o
                                                        13        0-0z I 6,ooZ        6? 7S. Z        'u(PA(o5o           0.1132         17-593-
                                                        14        o.orl  0.00z        -72 34.1 . 7 8 (0-SAbSc 0, 15 7                    17-726
                                                        15        6,011  6.0 0 z      T 49 7. Z                                          IT 58-3      -
                                                        I (P      0.0(s-              917T.2,                                            le. 0 66
                                                        17        0.613  a .100 z     io   111        /030'K.29           0         (0        7-72
                                                                  a      0,601                        11345.(o            0.1-13
                                                                                      119S,3,G

              REMARKS:

             L
              NAD Form 797
              Sept 75

                                                                                                                   REAV                                       LT.- AN(=
                               CALCULATION OF                                                                                                      f@
                         AVERAGE ANNUAL Pli,,:AGES                i!1,jTARy                                       UPSTREAM LIMIT OF REACH

                       T,.E OF DAi40CE                           STREAM                                            DOWNSTREAM LIMIT OF REACH
                       7-i'D4,L
                                          =
                                           TCE7                                                 1,-R@INAGE                      DATE           CMECKEI
                                              ,,F                                      fO I N'r
                                           7c'jF4 I ION@ OF TE=ERFNCE GAGE OR                      ARE A.        COKFUTED BYJ                              BY JDATE
                            I.A. L        P                                                            so. M, I
                                      OF
                                                        STAGE (Ft. d FREQUENCY                       DAMAGES (Dollars)                   AVE. ANNUAL        DAMAGES
                          rLoo!)        DISr"WE                                                              X1000                                 )( 000
                                           (,: f 5)      RF         MSL       %       Intervas     At Stage           Average           Interval        Summation
                                            (2)           (3)       (4)      (5)       (6)             (7)                 (8)               9              (10)

                                                                                       .3-3                             2.eo             0-924-
                                                                  4. 0      q.0       -                                                                    0-924
                                                                                       5.6                              46-20            2-S87
                                                                                       1 -58                          171-15             2.704
                                                                   b.0           2-   0.51                            .391-65            1-997             6-215
                                                                  -7                                                                                       B-212
                                                                                      0.16                            766-10             1-226
                                                                           0. 1       -            1004.4             1367-00                              9.438
                                                                                      0-0%                                               .1-229
                                                                   9.0     0 - 0                   1 (P 0 9. (P
                                                                                      0.011                           2003-4S            0.220
                                                                           0. 04                   Z 3 9 1. 3                                              10-887
                                                                                      0.013        -@Jz 5T            2961-50            0.372             11-259
                                                                                      o.oo6                           3798-90            0-227
                                                                                      OLOM         4-2-51-9           4733-15            0.237             11 -4-9 6
                                                                   1310               0-002        5 z *4-            S671-55            0.113             11. 72?
                                                                  14. 0    0 -,3 10   0.002        (a I Z S.7    .    6575-05            0.132             Il.S36      -
                                                                                 .7 -              '10 2 1- 4-                                                966
                                                                                      0.002                           7502-4-0           0.150
                                                                                                   -19 25. 4                                               12-118

                                                                                                   .9 11Z
                                                                                                                                                           12.2
                                                                                      U-00 1                          9192 -B5           0.032
                                                                                                   9 cool. 9                                               12- @@76

                      I REMAUKS:      DA f,       C, I- S

                       'L"-'AL' FOrrr'    797
                        IS-ept 75

                                                            5A -' IN                                           REA(44                                      LT.  RT.
                           CALCULATI'ON Ore                                                      a -I                                                           ANfM
                                                -      S   1,
                     AVERAGE ANNUAL DA.--'APE
                                                             4. !@  UTARV                                      UPSTREAM LIMIT OF REACH
                   F-L&ua-LA--a-4                                       0    7 f-
                    TYPE OF DAII.Ak;E                        STREAM                                            DOWNSTREAM LIMIT OF REACH
                                      L Ct C)   U I,;      I                -                                            -   -
                                                                                                 DPAINAGE
                   PRICE LEVk'- OF      CUNUiTIONS OF REFERENCE GAGE OR DINT.                    -A            OWUTED By DATE              CHECKED BY JDATE
                                                                                                 Ar, - *       0
                                                                 t-, '7,                                       jpy@s       14 /1 !;/T.0 1
                                                                                                               U
                                                    STAGE (Ft.) FREQUENCY                        DAMAGES       (Dollars)             AVE. ANNUAL DAMAGES
                       rI.OOD        DISCHARGE                                                                                             K1000
                                       (cfs)         RF         MSL               Intervea       At Stage         Average          Interval        Summation
                                        (2)           (3)        (4)      (5)      (6)             (7)                 (8)              (9)             (10)
                                                                                                 0.0                                                    0.0
                                                                                                                   2-00              o.924
                                                                                                                                                     o-9z4
                                                                                                                 -33-25              1.862
                                                              Z. 6      Z. 4                     (00.1                                               2.786
                                                                    0   @,72-      1.50          q (0, 9         123-90              1-558           4.744
                                                                                                                           S         1.3
                                                               -7,0                                     8        270-3                               0@. 123
                                                                                  0.16,                          494-20              0-791
                                                               12.0     0.                       U14, (a                                             6.914
                                                                                  o-OS14                          7 0 1 - 3 5        .0-734
                                                                                  -              19 Z 19. 1                                          7-648
                                                                                  0.011                          1127-00             0.124
                                                                         64 e: --- -    -        1152 5, q                                           7.772
                                                                                  6. 0 1                         1554. 15            0-202
                                                                        0. 0      -              1-77Z.4                                             7-97-4
                                                                                  0.00                           Zooo.65             0-120
                                                                                  -              zzli-l                                              e.094
                                                                                  0.00.5-                        2464-50             0- 1 Z?
                                                                                  -              Z-710-1                                             R-2/7
                                                                                  0.002                          2962.SO             0.059
                                                                14.     0.610-                   32-14-9                                             8.276
                                                                                  0-002                          3469.66             0.069     1
                                                                                                 --)i z 4.9                                          8.345
                                                                                  0.002                          4014-05             0-080
                                                                                                 4301.3                                              a425
                                                                                                                 444-4-So            aosq
                                                                    0   0 6""                                                                        e-5 14
                                                                                  0-001                          41544-66            0.049

                    REMARKS:       OAMACEIES PRE4E1I,@,F-D

                    NAD Form 797
                    Sept 75

                                                                                                        REA@!                                    LT.  RT.
                           CALCULATiON OF                                        %e r-                                                                ANf=
                     AVERAGE APNUAL                          C i-4;-r ,- t-    a. , -                                                            C3
                                                                                                        UPSTREAM LIMIT OF REACH

                    TYPE. OF DAFOVICE                     STREAM                                        DOWNSTREAM LIMIT OF REACH
                     71 -, t- *L   T% es o @-, I u @,                  -                                               -
                   TRICE LEV@L C'F     CiAu T -ON-'E--OF RErERENCE GAGE OR fOINTJDP@INAGE             CDMPuTED BY DA7 _11to I CHECKED BYTATE
                                                          "1 4 H                        AREA.                          41
                           L '"I I I                                                          SO.M.1                                   :ze-e-   !Ize-d
                                                  STAGE (Ft.) FREQUENCY                    DAMAGES      (Dollars)            AVE.      ANNUAL DAMAGES
                       rL00D       DI SMIKE                                                        Y-1000                              & 800
                                      (cfs)        RY        MSL               Intervas   At Stage          Average         Interval       Su mmation
                                       (2)         (3)       (4)     (5)       (6)            (7)               (8)            (9)            (10)
                                                             3.6 4-1           - 0,0-                                                         0.0
                                                                               33                             0. 80          0-264
                                                             4. o      0                   1,10             22-55            1-263            0.264-
                                                                       4                  45.s                                                1-S27
                                                                               1. 58      1(01-1            162-10           1.616            3.143
                                                             -7.0 5.11         0-sl       -bool             230-95           1-176            4 -'S 2-1
                                                                               0.1ro                        424..9o          o.680            S.001
                                                                               0 -Os@+                                       .0.6-as
                                                                                          1907.(P                                             5-639
                                                                               0.011                        -981-60          0-108
                                                                                          115 is. (a                                          5-747
                                                                                                            F-344 -.95       0- 1-75
                                                                 6                        IS54-.3                                             5.922
                                                                               0-006                        I-V6.90          0.103
                                                             12, @01 o, tz     -          Iq99's                                              6.025
                                                                               0-005      -Z 2 ps.          2097-30          CL 105    -                   i
                                                             'Z. 0 0 - -) z                                                                   6.130
                                                                               OL 002                       2497-40          0.0so
                                                             14.) o.011P       0-062      ZOi.7             2901-06          6.068            6- teo
                                                             ISA   0.0!-1 -               310z.4                                              C-238
                                                                                                            3329-75          0.067
                                                                               0-002-_    413o.0            .3942-55         0. OT7
                                                             1                                                                                6.3532
                                                                               10-001                       .4138.So         0-041 -                       I
                                                             1.9.6                        4 13 1, o                                           6-423

                    REMARKS:
                                                         PZSVE&ATED
                   F
                        E

                       L,
                    @

                                                                               0-1
                                                                   ",2,F

                    WAD FOrr- 79-7
                    S-ppt 75

                                                                                                                                  L7. RT.
                                                 tW;! N                                     REACH                                      ANb
                    CALCULATION OF                  C                                           c- /-,            S
               AVERAGE ANNUAL DAK4GES            rPiBJTAR%*                                 UPSTREAM LIMIT OF REACH
                                                     C @4 0                %421 V  IF
              7TPL 4,F DAM.',CE                 5TREAM                                      DOWNSTREAM LIMIT OF REACH
               711D /              @, I ki
                      - L        C) -    C,   1                                            1                    -
             PRICE LEVi'- OF ICUNDITIONS OF REFERLN@:E GAGE OR fOIN, Iop@,INAGE                      Byl DATE        CHECKED BY DATE
                                                                              ARE
                                                                                   S M  1.
                                                                                             U
                                          STAGE (Ft.) FREQUENCY                  DAMAGES (Dollars)              AVE. ANNUAL DAMAGES
                 FLMD       DISCHARGE                                                x Lckc 0                           Xc- 10 0
                               (cfs)       RF      MSL       ly.    lnterva,@ At Stage          Average         interval    Summation
                                (2)        (3)      (4) _(5)         (6)           (7)              (8)           (9)            (10)
                                                                                      0.0                                         0.0
                                                                     55                            0.15         0-050
                                                  4.0 ?-P           S-6               0.3             60        0.492-       .0-050
                                                              4       I-sa         16.9         135.OS          2.134         0-531
                                                                                 2
                                                   6.0              0.51           53.2          396-65         2.023         2. G( 66
                                                   7. 0 @.Z!        c). 16       540-1            oo6-iB        1.290         4.688
                                                      0                          10-12.2                                      5.578
                                                                    0.094                        1392-05        1.309
                                                      c             -            1711-9                                       7.286
                                                   i o, o o-o4-     0.011        2545-8        22 13 0 - e      0.234         7-5Z1
                                                                    0.01B -                     3069-90         0.399
                                                                    0.00         3588-0         414o.30         0-2-48        7920
                                                   12. 0 3. N@ Z'@@              4692-6         532-3-95        0-06-6        8.168
                                                                                 5955.1        -                              8-4,34
                                                                    0-001?       7214.7       6584 -90          O@IB2         9-G66
                                                 114.0    0,019-
                                                          0.617     0.002        9478-2.        7046.45         0-157         9.723
                                                                    0-002        -9759.9       9115 - 05        0. 192            905
                                                          0         6L 002                    102c3O - 10       0.206
                                                                               .10820.3                                       9.111
                                                                    U.uv 1                                      0.113             224
                                                                                 11824.4                                      9.

              REMARKS:    DAMACES Rr=MA1W1WCj

             L
              NAD Form. 797
              Sept 75

                                              -OF         BAS I                                       R E A@!,a                   MD      LT. RT.
                              CALCULATION                                                                    m -,:@ e co c, E
                        AVERAGE ANNUAL WAGES                                                          UPSTREAM LIMIT OF REACH
                                                          fRiBUTARY
                             P'L AN fA_-J5_                   C@-AOPTA,64Y, Z*J1,-_-e
                       TYPE OF DAKICE                     STRLAM                                      DOWNSTREAM LIMIT OF REACH
                       _71-04L @'LOC)01U&               I                                   AGE       I           -
                       PRICE LEVLL  Cf   CUNDITIWN@ OF REFERENCE GAGE OR        OJINT  AREA .                                CHECKED By JDATE
                                   -7                                            H SqDRA IN                                                 7180
                           1.4 L                                      k 10 of-, E 6\1       sa.M1.

                                                   STAGE (Ft.) FREQUENCY                 DAMAGES      Dollars)           "K. ANNUAL DAMAGES
                          FLOOD      DISCORGE                                                  X.                                 K 1000
                                        (cfs)       RF        MSL     %      intefvaa    At State        Av rate         Interval     Summation
                                         (2)         (3)      (4)    (5) 1    (6)           (7)                           (9)            (10)
                                                              3-o 4-t         35               0.0-         0.(5         0.050              0@6
                                                            4.o- 9.0          5.6              0.3-        6 -90         0.3,96        0.050
                                                                                            13.6                                       0.4.36
                                                                        4     1.58          56.6          35-05          0.554         0.990
                                                                 0 0. 12.
                                                                             0.51                        259-55 1.324
                                                          1-7.0 0.11         0.16        462.5            -749-75-       1.200         2-Z
                                                             q.0    0.1s                 10.37.0                     --                3.513
                                                             9.0    0. 0%    0.094       1670-4          1353-70         .1-272        4.705
                                                                             -0-01                       2097.00         0.230
                                                                                         2503         .6                          -    5.015
                                                            i a. o  o.045    0.013       3533-6'         -3021-60.       0.393         5.4-08
                                                          111.6     0.012    0.006                    .  4091-20         0.24.5
                                                             1'2,0  3.0z@,               4642-0                                        5-6S.9
                                                                             0.005                    .  52-74-45        0.264-
                                                             13.0   016V                 59o6.1-                                  -    5-917
                                                                             0.002                      6536-15          0.1-31
                                                             14.    0. .619  0.002       7166-2-         7793-85         0.1-96        6.048
                                                                             0.002       8421.5          5059-80         0.191         6.204
                                                                                         9698-1-                                       6.355
                                                                             0.002                     10225 -75         0.20-5
                                                                             -           to-T53.4.      11250-20         0.113
                                                                             0.001       1 F763-0                                      6,702

                         REMAIiKS: IDA MA Cq E              LM A I ?1J 1114 C

                        NAD Form 797
                        Sept 75

                                         ANNEX F-Td

                                         CRISFIELD

                                 STAGE-DAMAGE AND AVERAGE
                               ANNUAL DAMAGE COMPUTATIONS

                                     I

                                          F-II-1

                                                                                                                                  -X/"
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                                                  BAS 1.14                                     REACH                                  LT.  AN RT.
                     CALCULATION OF
                AVEPAGE ANNUAL VkWI=cz
                                             . .. 7RIBUTARY                                    UPSTREAM LIMIT     OF REACH
                                     a r t2.
              -P@A@ Q - I It-N-! rI.- Z!
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                                                  r                         NT   AREA.
                    CA L                          -!Z         IS L_    \J1 H. c@     S-O.M I -             4/1 s /to             cay

                                           STAGE (Ft.) FREQUENCY                   DAMAGES     (Dollars)             AVE. ANNUAL DAMAGES
                  FLOOD      DISM]ARGE                                                    x 1000                         X, I a 0 1
                                (cfs)        RF       MSL              Interva,  At Stage          Average           Interval    Summation
                            _(2)             (3)      (4,1    (5)      (6)            (7)             (8)            (9)            (10)
                                                      1. L)   cl                   0.0                                             0.0
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                                                      3. L)   4 Z      -           *7. 1                                           2.1oo
                                                      4.6              34          1 -z 9, 0      69-45              23-273      25-373
                                                                       6.9     -                 641-25              43.6oS
                                                      s,O     1. z     -           11SB's,                                       69-978
                                                      vd      0.,z s               114 A. z.     2149-65             20-4-14     $9.392
                                                                       0.18        U V -7.44.    46.9s.90                        97-845
                                                              o' 0 z,-r 0.045       IS2.4.6      6396-0              3-774       101-618
                                                                       0-01s,                    13017-25            1.9S3
                                                      1.6     P-010-             15,509.q                                        103-571
                                                                       0-0                       17.9/7-70           0.0
                                                      I-A.0 0.0-16               zoi 3 zcz. s    22332.85            0-0         103-571
                                                      11.0    0.013              Z4,540-Z                                        103-571
                                                                       W-W                      2ES61-70             W-L.,
                                                      17.0    .0,010   -         'Z 7,761  Z   -                                 103-571
                                                      1,3.0   6.010    0-0                      20452-20             0-0         1 M S71
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                                                      14.6    0,010-             B 1$ 101.1                                      103-5-11
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                                                                                        49.4                                     103-571

               REMARKS-

               NAD Form 797
               Sept 75

                                                       BAS                                             REACH                                       RT.
                                                                                           'y                                                LT
                        CALCULATION OF                                     A k e -BA                        c1mg: IE L                        C3ANfM
                  AVERAGE ANNUAL DAMAGES                                                               UPSTREAM LIMI7 OF
                                                     TR 1294LT                                                             REACH
                                                            .ARY
                      C P V@>T r- C r-                     10q/,/CnIE1Z SOLJ^ID                                  /,//A
                 TYPE OF DAMAGE                       STREAM                                           DOWNSTREAM LIM     OF REACH
                   Ta),A L PLO 6 0 IN 67            1              N/A                                 I           V 7,A
                 PRICE LEVEL OF 1CONDITIONS OF REFEREN            GAGE OR    POINT        NAGE         Ow"UTED BY DATE                  ery JDATE
                                                      C 0
                                                          ,ikt%                       IDRA                                0 104ECKED
                    UL                (BASF-        I              @b N I M 5)        AREA.                            A        sc"P?         eveo
                                               STAGE      F t       FREQUENCY            DAMAGES       (Dollars)          AVE. ANNUAL DAMAGES
                   FLOOD        DISCHARGE                                                    x loco                             y I C) 0
                                   (Cfs)        RF        NSL       %      IntervaL   At Stage           Average         Interval      Summation
                                    (2)         (3)       (4)       5       (6)           (7)                (8)            (9)            (10)

                                                                                                       O./so
                                                                  13-      S1.0         0.3            &. 5so
                                                                 4Z -                  I -Z -If                                        3.2.4 5
                                                                       - 34.0                          f6S.Z00           3S. 7 (a I
                                                          4-       8       -          / -q8. 0                                         117,011
                                                                           (0,90                       293,200           (DO-012       17 9.    57.
                                                                           0.156                       Z757goo           7- (a. I q (o
                                                                           -- -3345-.4 1                                               1 ZS- 3 10
                                                                           0.110                       S741.'ZSO         10.334-       13 S. 646-
                                                                           6,04@                       1000.050          4.SS(
                                                          4B     0,ozs-               12 S", 6                                         14o. 177
                                                                           ().Uj =0                    IS41S,000         2.315
                                                          q      0.01      -          It 27 (.0                                        142.4.iZ
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                                                          1+     0101                 3 (a ZS7.3       3737Z.300
                                                          Is    16.01                 B 9 4? 7.3       59707.150
                                                                                      40 -7

                 REMAUS:

                 NAD Form 7.97
                 Sept 75 -

                                                                                              REACH                              LT. PT.
                        CALCULATION OF                                                                                              Ahifn
                                         V.t                                    2,A-1         -                                   d
                   01FR-12:E ANNUAL P-A,           'RIBUTARY                    4             UPSTREAM LIMIT OF REACH

                                                   STREAM                                     DOWNSTREAM LIMIT OF REACH
                   ICE LEVF.L V   CONDITIONS OF REFERENCE GAGE                  DRAINAGE      OWUTED By[ DATE       ICHIECKED BY  ATE
                                                                       OR POINT ARE A.
                                  I                /I                  , M 4@, 11             1 P            5
                     ..;tAL. 'I I i           --   @-'z @, C, t ':-! @-:,D (\j  )I  SO.MI-    -.i k      4 t(
                                             STAGE (Ft.) FREQUENCY                DAMAGES     @Dollars)          AVE.  ANNUAL DAMAGES
                    FLOOD      DISCHARGF -                                             K10 0                         )(1000
                                  (4CfS)      RF      MSL              IntervaA At Stage        Average       Interval      Summation
                                   (2)                (4)      (5)     (6)          (7)                            (9)          (10)
                                                      7-01 @3          6.0        0*                            0-cV5          0.009
                                                                       51       --
                                                      3.0 4Z           '-         -7.9                                           ag 8
                                                      4,0     2        34       ms-4            66-45         22-S-93       24,951
                                                                       6-8                     576-50         3-9-2o2
                                                      @.O     1.2      -        10 2.1, (o                                  63.793
                                                                       0-t)g                  2007-15         19-068     J
                                                      IPA   10.2 G7    0-16     z 11          4376-75          7-e78        oz.
                                                         0  10,07 -             157 (4.2                                    90-739
                                                                       0.                     77SO-75          3.408
                                                         0  o. 0 z s            9154.1                                      -94-727
                                                        --- 0-0 1&                            .120-26-30       1- 606'
                                                      q.0 A,0!0-                14,337-9                                    -96.032
                                                                       0.o      11,170.9      65S4.3-5           0-0-       96.032
                                                                       0.0                    20785-30           0.0
                                                                                ZZ1191.9                                    96-032
                                                      17.0.0.010       -0.0     -2 s, (o (A. 4- 24234-60         0.0        96. 03-2
                                                      1Z.6 0,V0        0-0      1 -71 (ol 1. 12(:::,,670-2.5     0-0        96-032
                                                                       0.0                    2844 9. IS         0-0
                                                      14.3 01010                Z91ZZ7.Z                                    96-03'2
                                                                       0.0                    30OSS-40           00
                                                    119.6 0,010        -        S63 19. G                                   96-032
                                                            7- 0.0                  '1'77.4o  31SB3-60           0-0        96.032
                                                            10.0,10 - 121

                   RFMARKS:
                 Fi7P@vr D'i
                      r
                       )AL

                                                            IF2-

                   N-AD Form 797
                   Sept 75

                                                           BASIN                                           91 AC" C                                LT. RT.
                             CALCULATION OF
                                                                    - @Z_
                       AVERAGE ANNUAL DAMAGFIq             TRIBUTARY                                       UPSTREAM LIMIT OF REACH

                      TYPL OF j)AK%!k                      STRLAM                                          DOWNSTREAM LIMIT OF REACH

                                                           REFERENCE                                     @COMPUITED RY               CHECKED 8     )ATE
                        ICL LEVI- L OF  J:0rJ;jTIONS OF                  GAGE OR POINT      DRAINAGE                     DATE
                                                                                I t-@                      - I E)
                                                                         1                                                           12V4W
                     F=777@                                                                AREA          I @j I          (, /'? 0                y
                                  715                                        (\I/         I      SO.Ml.               I

                                                    STAGE (Ft.)          FREOUENCY             DAMAGES     (Dollars)             AVE. ANN@UAL DAMAGES
                                                                                                                                           000
                         FLN)l)      Dl9CR4RCF                                                                                         x I
                                        (cfs)                  MSL       %, llnlerve.      At Stage            Average           Interval        Summation
                                         (2)          (3        (4)      (5       (6)            (7)                              (9)             (102
                                                                    L)                              6.0                                               0-0
                                                                                  6.0                                0-15        0-009
                                                                         93                         0.3                                          0.609
                                                                         -        51                                 5.20        2.652
                                                                         4 z                       10.1                                          2.661
                                                                                  54                              51-70          17-578
                                                                         9                       93-3-                           5.40(c          20.239
                                                                                  6.8                            B14-80          5
                                                 -L                      l.Z                   1536-3                                            75-645
                                                                                0.95                           2714-20 25-785
                                                                                              3992.1                                             101-430
                                                                                                               5680-40           10-225    -
                                                                                -             7468.7                                             111-655
                                                                         0,07   0.045                          5988-10           4.495     -
                                                                                -            12507.5                                             li(.-150
                                                                                0. of 6 --
                                                                                             18178-2         15342-85            2.301           118-451
                                                                                  0.0                      .20894-30             0-0
                                                               A                -           2-3610.4                             -               119-4SI
                                                                                                                        .45
                                                                                  0-0                        26004               0-0
                                                                                            293cY8-5                                             113-451
                                                                                  0-0                        30113-20            0-0
                                                                                              1627- 9                                            119-451
                                                                                  0-0.                       33011-.25           0.0

                                                                                  0.0                        35119-35            0.0
                                                                                                                                                 i 18-4sl
                                                                4.3             -           36044-
                                                                                  0-0                        57205-15            0-0
                                                                                            3834,6-2
                                                              :E .6      3,yo
                                                                                  0.0                        39585-25            0-0
                                                                    o    -,o@o - 40804-73                                                        118-451

                                                                         @4 1 t4 67
                                                                                        @
                                                                                              DAMAGI

                                                                                           A t Stag
                                                                                                 7

                     L
                               or--    -7 Q7

                                                   BASIN                                        REACH                            LT, RT.
                       CALCULATION OF                                          @2A                                 L
                 AVERAGE ANNUAL DAMAGES
                                                   TRIBUTARY                                    UPSTREAM LIMIT OF REACH
                   21@A
                TYPE OF DAM.-'.tt.                 STREAM                                       DOWNSTREAM LIMIT OF REACH
                          L                ",7
                              rLOO
                                                                              JORAINAGE
                                 S@s
                t,&@ ICE LEVEL f9  @N - I T I DNS OF IREFERENCE GAGE OR PO INT                  [!VUTED By DATE     ICHECKED    DATE
                                                   /I                          AREA.            I I-                         BY    71615
                                                   @-2           (I'll H ^ ,        SO.M1.      I t       to Ito I ejo&

                                            STAGE (Ft.) FREQUENCY                 DAMAGES       (Dollars)       AVE. ANNUAL DAMAGES
                   FLOOD      D19CRARCF.                                               X IQ     0                     '*A 10 0 0
                                 (cis)       IT       MSL     %      Interva,  At St   -ge      Average       Interval       Summation
                                              3       4      (5)      (6)           (71             (8)            9           (10)
                                                      I. b                             0-0                                       0.0
                                                                      6.0                          0.0             0.0
                                                               3                       0.0                                       0-0

                                                             4Z                        1--3                                      0.332
                                                                      51                           0-65            a332

                                                                      34                          11-A0         3.
                                                                      -                                            076
                                                     4       2                       21.5                                       4.208
                                                                      6.6                       25B-45        17-575
                                                                                   495-4                                     21-782
                                                                     0-95                       1925-35        IS- 29 1
                                                            0.,Z:7- -                                                        40-073
                                                                     0.18                       5045-00        9.0S1
                                                                                 6734-7                                      49-154
                                                          -1--o-o45                             -9118-15       4.103 -
                                                                               11501-6                                       53-257
                                                                     0.0151'                    14281-85 2.142
                                                    -1?.                   -4  1701;2-1                                      55 - 3 C319
                                                                      0.0 -                     19751.90 0-0
                                                                     - 22441.7
                                                                      0-0                       24830-40           0-0
                                                                     -         27 2 19-1                                     55-399
                                                                      0.0                       26925-75           0.0
                                                    @7,0 @3,0!3                30632.4                                       5 S. ?)!)9
                                                                      0-0 --                    31194-60           0.0
                                                                               32956-8
                                                                      0-0                       33862-20           0-0
                                                   1;4@3    01313 - 34767-6
                                                                      0.0                       35787-60           0-0
                                                                     - 3 6 807.6                             -
                                                                      0-0                       36015-30           0.0
                                                                     -3922-3-0                                               5        1)

                             DAM& CIE S
                                                      MSL
                                          [9@41

                 ."All  orm     -79-
                 -@ept    75

                                        ANNEX F-Ill

                                      POCOMOKE CITY

                                STAGE-DAMAGE AND AVERAGE
                               ANNUAL DAMAGE COMPUTATIONS

                                         F-III-1

                                                                                                        SUMMARY 7Ar6 LF-
                                                               Poco mo Kc-              c1f                   ec E-sTp         e_-.=c_-o oA)-ry-, /wD...-
                                                                          4                    5                6
                                                                                                                                                                              EL                           MAL_
            ELE        10"     TOTAL              TOTAL          - ToT&L-- .--16TAL--                         crr&L                  APPI SAL COLI IT -                                                  T
           PLOO;             ResIDEN-11                M .14SCOMMERCIA _._RU1bWC_                                                                                             Full,
                                                UTIL., RA                                                  DU3TR16L -
                                         -aF_ @PH. DAM,                                 D,&MA             DAMAGE-A RES.               COt'k-1 PUB. UQ                         smm il c,
                              _0AMM E                                DA
                    - -----            -2.0                6                                                       0.0-
                 5.1  11               Z 1.0                4.z          -33                                                      IM                                      21       ILA          I
                                                          /1-4.1         _101E                    CIO         -A     I         1                       0        It        52-
                                                                          1 19                                                                                         MA          I
                                    ML Iq                �7                 2&A                                                                                 21
                                                                                               /3.01          1171?   Z        2    7                           2                  1?11       1           7- 1 @,l 1,3 1- 4-
              /oil I                ?MZI.-7 _E",-Ma _1_Q                                _30.                                   2 5T5       1           3        2
                                    IY 3's.             210144.6-       1                                     1  *7 0,         372         9/1         6                                                       y 5,
                                  Ilk 91,                         --2-2                     M        L                                              11311      .12                                        1@651,13
                                                       z 2,2-                                                                            Lc
                                                                                                              11 1qqL7         55            z      If                          /3                         7
              Im                  3q@ 1,6              IqZl.o                                                         o            7                                   WEI         IV
              115'                14 as                 4711A.2           7                 7/_2          _M3,3_tA_                     L-0 3
                                    z .9
                                                                     _:1e                                     L?75,                                                    ZZI      /61
              /7                                                       .7 coxyl                     J                          sp -1    163          1/                pv /     /7       1
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                                                                                                                            JI'll tITI 1.1          11:1
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                               IlTillill' I

                       CALCULATION OF                'SAS I N                                        REACH                                    LT. RT
                 AVERAGE ANNUAL DAMAGES                      C WES A? EWXF-T-1 &V                       ?0cnr"1nyF- cl y                      CqANb
                                                     TR18UTARY                                      UPSTREAM LIV            REACH
                   CIPTSTF-pc,                     -- POc0M01<r=                                                      7A
                 TYPE OF DAMAGE                      STREAM                                          DOWNSTREAM LIMIT OF REACH
                 TIDAL P'LO olwc-,                                 tIZA                                                   A
                 PRICE LEVEL OF;   CONDITIONS WIREFERENCE GAGE pR POINT                AINAGE      COMPUTED ByJDATE           104ECKED BY JDATE
                 jU L                                (;UAR        S". I               AREA. SQ.MI-

                                               STAGE   (Ft. )     FREQUENCY             DAMAGES (Dollars)                 AVE.    ANNUAL DAMAGES
                   FLOOD       DISaL4RGF-                                                                                         YL 1 00
                                  (cfa)        RF         IdSL`           Interva&   At Stage            Average          Interval     Summation
                     (1)           (2)          (3)       (4)     (S)       (6)           (75                (8)             (9)           (10)
                                                          2       160     0'0          0.0                0.0             0.0             0.0
                                                                  4Z      S9,00                          3.20             1356             95 to
                                                                          10100                         10--T6            311so
                                                          4       /Z    .-            14.4                                             5.6 0 (0
                                                                          7, Too                       -692so             '5-042-
                                                          5       4-z     -Z,qo           3.17         140.40             a.5 5 1          0 (0
                                                          6       1.4-    -               to, 1.                           -               I I
                                                          -7      0.4 5   d.95C      652-1             434.50             4. 1Z?            I Z (P
                                                                                                                 50       Z. @ -7 7
                                                                                                       1100.7 SO"         1.44(,      11. Wo4
                                                                  10-085  0.035      Z f 4 13         zlksco. 30          1.060       z a. z. 41
                                                          10      C).050              3571.3                                          ZlIZ41
                                                          11      0,03Z   0,01%       S145.1.         43VC-60             0-79.5      ZZ.03A
                                                          1-2     0.6Z3   0,007       -7057.8         (PIOLSSO            6.S41       7.2,5 Ir3
                                                          I "t    0.016   0.106S     1693.1           %67S.4GO 6.404
                                                          14      0.015   '0.005     1  1343.3        /OZIT.7-0 0,156-7
                                                          15      6.014,0.001        137-136.5        IzBlq,90 6.12-2
                                                          IG      10.013 .. 0,001   1 S I    to'.1 -  14ZZI. 30           0. 147-     7- 3, !F ST
                                                                          01001                            (Oz.zsc 6. 1 (0 z
                                                          11      0.61Z             1-7 IT9. 4-.                                      Z 3. 7ZO
                                                          IS      6.011   0.001    *1   Q 4.7              4 6.           6.117       -Z 1.

                 REMARKS:

                 NAD Form 797
                 Sept 75

                                                                         -iAS IN                                                R E @Clpl                                        LT. RT.
                                   CALCULATION OF                                                          1 -A                                                                      ANL3
                            AVE'RAOF AM4UAL PIMA                  S
                                                                         'R ; r. 1j:1 P Y                                      @:PS`TREAM LIMIT OF REACH
                           PL A, 1.4.6 p                                           c co           <
                                   -         IQ-
                              '
                               -FF DA%tA.-..                             STREAM                                                  DCWNSTREAM
                              :'E                                                                                                                  LIMIT OF REACH

                           PPIC; LEAL V                           GF I@EFEREWE GArS               P^11.11     r-RAINAGE       COWUTED fl,@ OATE                    'PECKFD BY JDATE
                                                                                                             A4                                    @7
                                                                         II                       I-             A                                            IL
                               'i L                                         ;.j r-

                                                               STAGE (Ft.)              FREQUENCY                DAMAGES        (Dollars)                AVS. ANNUAL DAMAGES
                              FLOOD          DISCRARGE.                                                                  I(.-ka a                                  )(1000
                                                (Cf2)                                             Interva.    At Stage                Average            Interval        Summation
                                                  (2)            (3)        (4)       (5          (6)-              (7)        -(8)                          (9)              (10)
                                                                                                  56             0.0                     3.15              1.764               0-0-
                                                                                 0   4Z - (o.                                                                                   1-764
                                                                                                  30                                  to.4 5
                                                                            4.0        Z                         14,(p
                                                                                                  .-7-8                               34-20              2-66-S
                                                                                                  -           6 B.19                                               -          7-S67
                                                                                                  2.8                                106-55              2.983
                                                                            G.0      1.4 -                                                                                   ID-550          I
                                                                            7.0     014 -1fr      0.95        Go 17. S              335.40               -3.215             13-765
                                                                                                  0.28                              775-65               2.112
                                                                            '.6      0.11         -           10,53A                                                        15-937
                                                                            1.0     0. 6^41 sz    0.0es      .1sols.7               1419-75              1.207              17-144
                                                                                                  0.035                             2467.75              0.960
                                                                            10.0    0. 0 rc       0-018        -6 101. 2--                               0.697        -     16.004
                                                                                                              46ZZ.5
                                                                                                  O.CV9        UZ 4 G. (0          5384-05               0-4SS             19.1-76
                                                                                                  0.005                            -7/SO-SS              0-@EF
                                                                                                  0.003       qoss.g                9068-20              0.272            1.9 - S -@4
                                                                            t 4                                0, 6'%                                                      19-806
                                                                                                  0.001                           10.93 .5 - 0 0         0-109
                                                                                                  -           111 -71 of. 1                                               19-915
                                                                                                  0.001                    --     12601- 2 S             0-12G
                                                                                                              13,4-11.4-                                             .    20.041
                                                                                                  0.001                          14339- 4 S              0- 14E

                                                                                                  0.001                                E 0         f:    0.159
                                                                            i    L1                                                                                     20. 34

                           f@EMARKS.
                                                                                     4'  n
                                                                            .0

                                                                                     4
                                                                                          -Z

                                                                                        4

                           \,AD Form 797
                                      75

                                                       OAS!,%                                        REArH                                   jT.     RT.
                                                                                                         'Pn c- ") t-, --@ @ <
                       CALCULATION OF
                 AVERAGE ANNUAL         DAMAGES,       -RIBUZARY                                    UPS'TREAM LIMI1 OF REACH
                                                             t1o c  t-i
                     ,P                                               0
                 TiPF OF DAMA(-i                      STREAM                                         DOWNSTREAM LIMIT OF REACH
                 T1 --, 4 L 7- LO 0 '@ I W 1@                                                                         -
                 PRICE LEVEL 10    CONDITIONS OF     REFERENCE GAGE                    AINAGE      COMPUTED BY DAT
                                                                          5 P        -R                               7,,,) ICHECKED By JDATE
                                                                         0    OZ    jPiREA.  SO.M1.                -.0            %,77        C190
                                                      C-1 L) P, rz                C,                            P7

                                               STAGE (Ft.) FREQUENCY                    DAMAGES Dollars)                 AVE.     ANNUAL DAMAGES
                   FLOOD        DISCHARGE                                                       x  000                         X  1 60
                                  (cfs)         RF      VASL I     %      rnterva.   At Stage            Average         Interval       Summation
                                    (2)         (3)       (4)     (5)      (6)            (7)                (8)            (9)            (10)
                                                                                             0.0                                                 0.0
                                                                                                             0-0             0-0
                                                          -3. o   4 z-     30                0-0             0.15        .0-045                  0.0
                                                        4.0       1 -Z                        0.3                                          0.045
                                                                           Ts                                8.85        0.690
                                                        s. o-     4r , e-  2.8              17.4            90.0.5       2.521             0-73.5
                                                        6.0       .1.4    0-925           1627           369-35          .3-509            3.257
                                                                  .6.45   -              57(6-0                                            6.766
                                                                          V- r- Gil                      872-45          2.443
                                                             6    0,11    -             1160.9                                             9-208
                                                                  -0.085                                 1605.45         1.395
                                                        9.6       10.02=               2042.0                                            10.573
                                                                  j
                                                                      ':- 0.035                          27S5-70         0.964
                                                                  o.o5o.-               3469.4                                           11-538
                                                                  6.01-   0.019        6045.0            4257-20         0.766           1 2.3o4
                                                                          0.009                          5-99@9-95       0.540 -
                                                        17-0 0.021-                     6954-1)                                          12.944
                                                                          0.00.5                         7971-80         0.395
                                                                  10. vi               898cy- 1                 -                        13-242
                                                                          0.003                    -     10120-05        0.304
                                                                          -          11251-4                                             13-546
                                                                  10.614  0.001      13221-4             122.36-40       o-122      -    13.668
                                                                  15. 0 1. s0.001    15100-0             14160-70        0.142           13-910
                                                                  0 1 IV, 11 z0.001  17175.3             16137-65        0. 1 @& 1       13.971
                                                                  -- 0.001
                                                                     0, -            f 854 1-            17858-25        0.179
                                                                                                   2                                     14-150

                 REUARKS-
                             0,&"ACSS                                        -PC-1

                 NAD-For-" 797
                 Sept 75

                                                       8ASIN                                    REVJ$                               LT.    RT.
                           CALCULATION OF                                                                      0     CI -i y        C3 AN b
                      AVERAGE A NUAL DAMAGES           TRI66aARY                                UPSTREAM LIMIT OF REACH
                                                                         s
                               hL                      STREAm                                   DO*NSTREAM LIMIT OF REACH
                     iYPE OF DAMAG-E

                                  L-0c)
                                                                      c  @11'  N   AINAGE               ,',I OA TE     CHECKED BY ]DATE
                                                                           ,   S@ IL
                       1     -79                                      0    't@   A!
                     PRICE LEVEL OF 'CONDITIONS OF   REFERENCE GAG         01      RREA
                     _j UL'                              U r, p-                      SO.M
                                                                                         I
                                                STAGE (Ft.) FREQUENCY               DAMAGES (Collars)             AVE. ANNUAL DAMAGES
                       FLOOD      DISCHARGE                                               X Q la                          X1000
                                     (cfs5       RF     :6@        %     Interva& At Stage         Average        Interval     Summation
                         (1)          (2)        (3)      (4)    (5)     (6)          (7)              (8),_         9
                                                                 q                        0-0            0.0         0-0               0-0
                                                                 o4 z                     0.0-                                         0.0
                                                                         30                          40./s        0.045
                                                        4.0      12      7- e            .0-3-       2.10         A 164            0-045
                                                        G.0-     4.z     2.e             3.9-       36-9          1.033             0.20-9
                                                        6.0      1.4     O..'@5        69-9     -   3o7-00        2.917             1-242
                                                       -"1. 0    6,45    -            544.1                                        4.159
                                                                 0.11    0.28        1130.5-        03750         2.3-45           6-504
                                                                         0.005                      54@7- 2o      1.332
                    ------------                        9.6      0.62S   0-o3s     200-3. 5     -  2719-95        0.952           7.836
                                                        10.0     0.050 -            3434.4                                       0.7 8 7
                                                        H,0 6.012        av/,o      5012-5         422.3-45       0-74o          9-547
                                                                         aoo9                -     5966-55        0.537
                                                                 0.021              6921.4                                     10-084
                                                                      = 0.04.5                     7534-SO        0-397
                                                        (B.0- 0.619      a003                     10077-85        0-302         0. 481
                                                        tCo 0.0'_cz -               11204.1                                    10-784
                                                        I S. 0   6.64    0.00/      13163.9       m84-00          0. 12 2      10- _505
                                                        16.0     0. 0!1 -6 apo/     15034.2       14099-05        0-141        1J.D446
                                                                         0-001                    16069-60        0-1(-1
                                                        11.6     0,61Z             I-TI05-0                                    11-207
                                                                 0    .  4- 001              -    1778,66-65      6.1-18
                                                        M.6      6-ull            184 60-7                                     11. ags

                     REMARKS:
                                DAMAC-IES.       REtAAjWjW C-7        PC- 4
                                                                                                               [@A
                                                                                                                   VE.
                                                                                                                   terv.1
                                                                                                                     9

                     NAD Forrn 797
                     Sept 75

                                                    BAS 1.14
                                                                                                                                    LT. RT.
                        CALCULATION OF
                  AVERAGE ANNUAL DAMAGES           T R I En U.U R Y                            UPSTREAM LIMIT OF REACH
                                                             c 0 +-1 (:)!,<E  Rivs?-
                 -fYPE OF DAMAGE                     STREAM                                    DOWNSTREAM LIMIT OF REACH
                 T'D A,- 7-,-o 01@ 1       64     1                               i                           -
                 FR-ICI L@IIEL OF 'CONDITIONS OF REFERENCE GAGC                   DRAINAGE    COMPUTEP Byl DATE        CHECKED BY DATE
                   I      _0                                          0 POINT     AREA,
                                                     -1                  h S)
                           7 1    1               i /-^ V A 9-        "A. @J 1,   1  SQ.MI -                              Ls nN-

                                             STAGE (Ft.) FREQUENCY                 DAMAGES                        AVE. ANNUAL      DAMAGES
                    FLOOD      DISCHARGEE              H -_:_u  -                 -      x     DO                         )(1008 -
                                  (cfs)       RF       *tS=      %    IntervaA    At Stage         Average        Interval      SUMM&tion
                      (1)          (2)         (3)     (4) _LS)         (6)           (7)             (8)           (9)            (1c)
                                                                        56               O.L)            0-0         0.0               0.0
                                                       ao 4z                             0.0                                          0.0
                                                                        30                              ao           0.0
                                                       4.0 1z                            0-0                                         0:- 0
                                                                        7-8                            0-115      0.059
                                                                        2.6              1.5           6.90       0.190            0-059
                                                               1.4    -                12.1                                        0-249
                                                       '7, 0 0. 4 Z   0.35            69.7---        40-90        0-389            0.637
                                                                      0.20                          502-80        1.408
                                                       %.6   10.11    0.085         935-9    -     1360-75        1-157            2.045
                                                       9.o o.c2c-,-               17195-6                                          3-202
                                                       io.o  o.w@o    0035        3220-2-          2502-90        0-876            4-078
                                                       iko   10-UtZ   0-0/8-      4826.6          4023-40         0.724            4.802
                                                                      0.009                       5799-45         0.522
                                                             10-02@   0.005       6772.3          -7798-90        0. 3 S) 0        5.324-
                                                             0.       -           8925-3                                           5.714
                                                       14. o 0. 0 1@ S0.003       11073.4          9949-35        0.298            6-013
                                                       I SA 13.614-   a001        12984.5        12028-95         0-120            6-13:3
                                                       (..01010111    0.001 -                    13699-20         0. 135           6.272
                                                             0.01k -4. 0-001      16807.4        15610-65         0.155            6.43o
                                                             o        0-001                      17472-50         0-1-75
                                                       111.0 0.011

                                                                                                                          A

                 REMARKS:
                            DA""1F-5 REMANWC,

                 NAD Form 797
                 Sept 75

                                                                       I

                                        ANNEX F-IV

                                        ROCK HALL

                                 STAGE-DAMAGE AND AVERAGE
                               ANNUAL DAMAGE COMPUTATIONS

                                          F-IV-1

                                             STACqF_ _.____DAMAG_S_.__SUM_MARY _TABLE____6J'
                                                        ROCK_ - H-,RU-,) MD, - -                -.- - - - -
                                                                   5                           7            8                         10
                                                                                                                             EL LVAT 100         MAL__
                                                                                                                                               _T
          ELFE    10M - _Tq_TAt__ --TOTAL       ----TOTAL- - To-r,& 4        -TcjT&L.          App,     SAL--CO     'T -------
         rLoot       RFSIDENFIA       IL,,T;Z NS, COMMERCIA ___RjBL_tC__                             @l            -         Ft-,: @v -, -,
                                                                     tC    NDU3TRIAL                                                         commilwiTy
                                                                D&MAG        ----A(q4F--     ___ __ 11                               -
                                                     MA                                  RF-s. Coi-     PNwt@. It  cdTa-r.                     DAI-ihcL
        _$rAC,.G       DA M A(       PH. DA

                                                                                  A
                                                                                     -7

                                          W/k       Il/q,9                               --Ly--
             71   1       1212-           WAq            1             110       231-              21       o  1      .'-221    7
                                          1 q.q        7s            _oL                    27C    2-2    1 Irl         39
                                                                                 XS_                                                             L@&,
                                                                                 771. 11 1 :3
                                        1,51-7         15            1 n
                                                       13              10          CPO      49     0 8      D     1171                           0 0
                                                       / b            110                          2 A      o  I I
                                        2/                                   __L3         __34                                                 -37 2
           Z2           .3  Eat f       911       __90-9S          -0-45- -L2k,            M       21-4 ... I          145S     z              _1@
           L3-                                         00.7         6 RZ I      l/ Isiq "I liz-21           3      -7           L3
                              5s                                                              a/     I      q I I r4     Z 3  IVI
                         5221        __3qQ             M Z            3k-M,                .527-                         7q
                                                                                                                          251
           /6     1      50 c) I 'z                                                                  5      r7l
                                   ___203            3. L
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                                      L IRI 414
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                                                  BASIN                                       RE                                  LT. -RT.
                      CALCULATION OF                                                           '*CH.                              EJANb
                                                       CHF-SAPr.A,WE 1BAY                        Kor-V- WAL-L M.D'
                 AVERAGE ANNUAL DAMAGES.         7RIBUTARY                                   UPSTREAM LIMIT OF REA@H
                 DAMAC,C- SUeVGY                      CWZ-STep, QIVGP-
               "fYPE OF DAMAGE                     STREAM                                    DOWNSTREAM LIMIT OF REACH
                -r TO A, P       00104         -1
               PRICE LEVEL OF    CONDITI S OF EFERENCE GAGE OR POINT DRAINAGE              1COMP`UTED BY DATE        CHECKED BY JDATE
                                                r@, L C34 a:Vre    e '41 H S)   1AREA, $0.1411.        1     r/-7 1      4-5,07 1 11A0
                                  13 A SSE                                                AjKla IZI,

                                                                                            (Do I I ar a        AVS. ANNUAL      DAMAGES
                                           STAGE (Ft.) FREQUENCY                 DAMAGES                                     .6
                  FLOOD       DISCR4RCIE -                                           K1000                               X.146
                                (cfs)       RF       MSL       %     Intervas   At Stage         Average       Interval      Summation
                                 (2)         (3)     (4)      (5)     (6)          (7)               (s)          (9)           (10)
                                                     7.0     50        0          0.0              0.0            010         0.0
                                                                       26                         O.So         0. 1,::@o
                                                     3.0    z 4                                  z 3"?o        2. (0 z I
                                                     4,0     13                 4(,.9                  570     (0. ZO(o       2-75-@
                                                     S.0    (P. 7               IS0.2.                                        8. 9,G 5
                                                     4.0   13'?                 3-q 1. a          Z 70. (00    7, S 77       16-541
                                                     -7.012,2--       /.7       '774, (a         S T2. tO      91, 909       76-449-
                                                     8,0 /,3         0.'?       1 -6 1 a(- q   i 0 4 7Z.S      9,47.9        35-674
                                                                     0. to                     1702./0         /0-2-13    -
                                                     9.0 0.7.        0.3        70T4.3         z 4 ?&, TO      -7.490     -  4(6-087
                                                     10,010-4        0. 1z      z gol. 3       B340-7z         4.001         53.577
                                                     (1.0 0,-29      U,U7       3 -7 7Z. Z.    42.6(0.05       3.7?c         57-586
                                                     JZ,0 6.11       -          4. (o -6 ci, 9                               G 1. 871
                                                            0. 15    0.04       54 IN. 'f      sc(oa4a         -z,ots        6      9 7
                                                                     0. 6 Z. -                 5977.69         /. 1-7(,o
                                                     14,0  103-3     - (V-Z(0T.+                                             64-572
                                                                     o.03                      (0 (0(01. 9-T   /.997
                                                     ISO 6.1         0,6 z      .-705.5.3      1 sa% - -4 0    11500         66-571-
                                                     1(0,0                                                                   68-071
                                                     17.0            0,63           ca 4,9       4S7.00        2--5 -; 7     70-6o8
                                                                     0,03.                                     2- If -s' ra
                                                     18,01*0.62.- 100-74d                                                    7@@-464

                                                                   1-4

                REMARKS:

               NAD Fo= 797
                Sept 75

                                                                                                                                                                                           RT.
                                                                                                                                                                                       AN
                                    CALCULATION OF                        BAS!                                                   REACtL
                                                                                                                                       ko c,         V4
                             AVEPAGE 4RRUAL
                                                                         R 113      ul AR'r                                      UPSTREAM LIMIT OF REAC)i
                                                                                    - L@ IF- CIT-1          er
                              LAWS- R             I C& H -- -2
                           T'v@l OF    UAMAGE                            STREAM                                                  DO*NSTREAM LIMIT OF REACH
                            -7-11)4L- @:L-Oovwc,                     -              -
                           PRICE LEVEL OF ICCNDITIONS OF REFERENCE GAGE OP POINT                                @AINAGE
                                                                                                             J'AUA.",...         C-UTtD PY 11A7,E                CHECKED BY ]DATE
                                                                                    L CE--TC---e                                                41 is
                                                                STAGE (Ft. ) FREQUENCY                            DAMAGES        (Dollars)                 AVE. ANNUAL DAMAGES
                               FLOOD          DISCHARGE            -                                                      x 0                                     )(14000
                                                 (cfs)           RF                 MSL   %        Intervns     At Stage               Average             Interval          Summation
                                  (1)              (2)            (3)               (4) (5)        (6)               (7)                   (8)               (9)                (10)
                                                                                    2.6 C 6)                       0.6                                                          0.0
                                                                                                   26                                     0-50             0. 1-40
                                                                                    a. o z4 -                       1.6                                                         0-130
                                                                                    4.0 13                      -61.1                                                          2.22G
                                                                                    s.0- 6.7       6.30         1 o3-4                  70-25              4.42G               6.951
                                                                                       31cl        2-80         113.1                  208-Z5              .5-83,            12-482-
                                                                                                   1-70                                479-30                  148
                                                                                       1.3         0.90         1131- 3                091-90              6.027             29-6S7
                                                                                    9-0 0.1        0:6o         I ? 44.-4              1491-25             B-948
                                                                                                   0.30                               223435               6.703
                                                                                    10,0 0.4                    2- (0 24, G                                                  "M - -3 oad
                                                                                    111.0          0.12                                                    3.648             47.-996-1
                                                                                       0.2" -                   345S.0
                                                                                                   0.09-                            39 78 - -310           3-490
                                                                                    12.0 0-ftl                  410(.(o                                                      Si - 44( .
                                                                                                   0.04                             4708-90                1 -984                          ---
                                                                                    13,0 0115      -            S I I L02                                                    53-3@@c> I
                                                                                                   0-02                             5485-90                V Ce7
                                                                                    iki) 0.13      -            SqSS-4                                                       E4-427
                                                                                                   0.03                             C>c, I -@, - 00        1.864             S6.Z51-
                                                                                                   0.02                                         IS         1-3'@@7
                                                                                    6  0.08-                    '14-03.3                                                     57-68S
                                                                                    k 1..Lj 0.05   0.03         q3SS,=              7978-40                2.364             60.OS2
                                                                                    I q,6          0.03         q 4-14.9            0%4,70                 2.665             6Z.   717

                           REMARKS:,
                                               DAMAAES PZeVF-V-k-TST>
                                                                                    F
                                                                                          3

                                                                                       04

                                                                                       L

                                                                                         .02

                           'NAD Form 797
                                       75

                                                   OAS IN                                         REACH                               -TLT. RT.
                    CALCULATION OF                                                   -15A-l                                             I C:JANE3
              AVERArIE AYNUAL DAMAIFS: 7R               ;  A RY                                   UPSTREAM LIMIT OF REACH
                 . h1s-RY---8.tRH7-4-                          S7C-e     2, J E e-
             TYPE OF DAMAGE                        STREAM                                         DOWNSTREAM LIMIT OF REACH
              -71DA        @:L-o 0       el                              -       JCIRA I NAGE     OMPtjT 0 BY DATE        ICHECKED By' ]DATE
             PRICE LEVEL OF J1,014DITIONS OF      REFERENCE GAGE OR      POINT       AREA.                                                 ;;0ff
                  LA 1-                            10 L C- @-; E@S T C--P- (         - - SQ.MI -                               S@@e I
                                           STAGE (Ft.) FREQUENCY                     DAMAGES qDollars)                 AVE. ANNUAL DAMAGES
                 FLOOD       DISCHARGE                                                    X100                                 Y, 1000
                               (cfs)         RF        MSL       %       Interve,    At Stage        Average           Interval      Summation
                                 (2)         (3)       (4)     (5)       (6)           (7)               (8)            (9)             (10)

                                                                                                                       D. 1--2@0
                                                                                     1'0               Is-ss           1-711
                                                    14,o       13        -           50.1                                              1 - B4-1
                                                       s.0     6.7       6.3         @012            4,5-15            2.544           4-GB5
                                                       (O.o    3,cl      /- - n      N(P.0            123-10           3-447           0.132
                                                       1. 0    27 -      1.7         3(ptv-4         276-20-           4-69s          12-921
                                                                 .4      0.130                       520-65            4.688
                                                       q. o    1. 3      -           G7 S. 3                                          17-515
                                                                         Or6O                         878-45           5.271
                                                       9.0
                                                                                                     1303.65           3.911
                                                       10,0    0.4                   1 S?-S,7                                         26-696
                                                                         0.12                       1'763-o5           2. 11 (6
                                                                         Z&
                                                       11.6    0."       -           ZOM4-                                           2a. e 12
                                                                         0-09                       2,2o6.55           1.986
                                                       12,6    0. 1!     -           -24 1Z .7                                       3>0 .7 58
                                                    113.0      CJS       0-04        ZI (90, 3      2s8r,.so           i-o'95        3
                                                                         0.02                       0388 - S5          -6-S78
                                                                                     30 1 (" 5?                         --            32-4(C)
                                                       14.0    OJ3
                                                       -                 OL03                       3121-05
                                                               0.1       -           12 Z G.5
                                                                         O-OZ                      3332-95             o-667
                                                       1(D.0   0.08                  '6440,(o                                       -34 - 0 1-:t
                                                                         o-03                      35ST15              1.061 -
                                                       11.6    0. 0,5    -           16(oBB.7                                       S5-0-74-
                                                               00-02     0.03        3%%4,q        3741-25             1-122        3& - 197

              REMARKS:                                                                4           4-
            F
                  E F
             L
                                                  LEe

              's,'AD Form -797
              Sep, 75

                                                  BASIN                                   REAC                              LT    RT.
                         CALCULATION OF                                       -2             _b,
                                             .So                              v5z--t                   Wr-LL-
                    AVERAGE ANNUAL nAm.@!E .       7RIBLAARY                             UPSTREAM LIMIT OF REACH
                  -2L&g,%-R.H--54R4-:h                 L- H          2,2- 4- Z      -             -
                   TYPE OF DAMAGE                  STREAM                                 DOWNSTREAM LIMIT OF REAC14
                   -71 Z),a     L-d 0 Di IJ C7
                  TR ICE LEVEL OF  COND.1 T I ONS OF rREF ERENC GAGE OR po I T   AGE
                                                                  ('4         A EA.     kOWLITED By DATE        CHECKED BY DATE
                       CA I- I C!
                                                                                 SO.Mf -  Qft@      14.115, 140
                                                                                          V
                                            STAGE (Ft.) FREQUENCY              DAMAGES (Dollars)            AVE. ANNUAL DAMAGES
                     FLOOD      DISCHARGE                                               A a                      X1000 .
                                  (cfs)      RF      MSL     %     Intervas   At Stage       Average        Interval    Summation
                                   (2)       (3)     (4)    (5)      (6)         (7)            (8)          (9)          (10)              1
                                                     2. 0   61, 0                                                        0-0
                                                     3.0    -z4-                                0.0           0.0
                                                     4. 0 1,3                                  3.45         0. 3e
                                                     S.0    6.7                               25.05         1.578
                                                     (o.0   3.01     2.8      1 -Lq. -7       os-.9s        2.407         4.364
                                                     1. 0 1 '2.2     1-7      7-11. 4        203.05         3.462        7. at r.
                                                                     D,5                     -372-40        .3- 3 Sz
                                                          11.3     -          461.4                                       11-168
                                                                     0.6                     617-65         3- 7o r-,
                                                     9.0    0.1    -          -70.1
                                                                                                                         14.074

                                                     10.0   0.4    -          I I 0z.4                                   17-6-75
                                                     11.0 1 0.2a    0-12      14SS.9        1279. 1 S                    19-214
                                                                    0-09                    1671-70         1.50.5
                                                     12.6 0-101               1 q T'7.5                                  20-719
                                                     13.0   0.15    0.04      2. 3 5 1 - T                  0.848       21 - S6r,
                                                     14,0 10,13     0. 0,?    Zq 3 4. (P    2S-93-20        0.5115  -   -72 - 0 S 5-
                                                                    0.03                    3OBS-90         ID-927
                                                     (SC) 0. 1     -          z343.z.                                   23.012
                                                                - 0-02                     36Sz.6S          0.731
                                                            6,08-                 (oz.                                  23-74,2
                                                     11.6   0.05    0.03      47zz.z       4B42-3,5         1-303
                                                                    0.03                                                25-045
                                                                              ss34,9                                   26- S84

                   REMARKS:
                              DAMAC-1QS PREVEN-rED

                   NA.D Forra 797
                   Sept . 75

                       CALCULATION OF                 BASIN                                        REAgLj,                                 LT.  AN RT.
                                                             C     S                Z4.-t                                                  d b
                 AVERAGE ANNUAL DAMAIES: ---                                                      UPSTREAM LIMIT OF REACH
                                                    7 R 19 1;,,@A PT

                TY,1C OF DAMAU@-                      STREAM                                       DOWNSTREAM LIMIT OF REACH
                PRICE LEVEL 01 JC@@NDITIONS OF      REFERENCE GAGE OR POINT 11,PAIIIAGE            Wowul D LlyllIATE        ICIIECKED BY DATE
                                                                                   AREA.
                                                                                         SO.MI.
                     LA L 'I C!                         L    -Z-r E.P_                                             (0 /?o

                                              STAGE (Ft.)         FREQUENCY           DAMAGES       Dollars)           AVE. ANNUAL       DAMAGES
                   FLOOD       DISCHARGE                                                     A JQ 00                             x 000 -
                                  (cfs)        RF       MSL       %     IntervaA    At Stage           Average         Interval       Summation
                     (1)           (2)         (3)      (4)      (5)       (6)          (7)               (8)            (9)             (10)
                                                                                          0.0                                              0.0
                                                                           26                                0.25      0.065
                                                                  4                         0.5             4.00       0.440             0.065
                                                        4.0     13                          7.5                    -                     0.505
                                                                6. 7       6.3           54. 0            30-75        1.937            2.442
                                                                3.c@       2. 6         351.2            202-60        5.673             8.115
                                                        -7.0  1-2.2  -     1-7          'T 16.5          533.6.5       9.075          17-191
                                                        q, 0    1,*3 -     0.9        124S-2            990-95         6.9281         26-018
                                                                     _     0.6                         1620-20         9.721
                                                        9.0     0.1                   1995.2                                          35-739
                                                                    -      0.3                         2402-70         -7-208
                                                        io.0    0.4      0-12         2910-2           3237-55         3.085          42.947
                                                        11.L1  0. *2--                3-644.9                                         46.e33
                                                                          0-09        4527.5           4096-2o         a 687          50-519
                                                                          0-04                         4943-60         1.977
                                                        !3.0- 10,15    -              5359.7                                          62-497
                                                        4.6 0-(3          0-02        6133-2           5746-45         1-149          5 3 - 6,4 6@
                                                                         0.03                          6523-80         1.957
                                                               0.1     -              6914.4                                          65-603
                                                                         0.02                          73sla-Bo        1.472          -
                                                        1(-,.o 0.08 - 7902.2                                                          57-075
                                                        IT   .010.057    0.03         8013.6           8307-90         2.4c)2         59-567
                                                        lej               0.03        99)6.8           9365-20         2.910          62.377

                REMARKS:                                                       RH-7

                NAD Form        797
                Sept 75

                                                          BASIN
                                                                                                      REA5                                          RT.
                              CALCULATION OF                                                                                              I LT.
                                                                   -kc-s4c!Ef-t-CE@ ZA-1                                                    dANfM
                                                                                                            I CV
                                                                C
                        AVERAGE ANNUAL DAMPEs:                    RY
                                                          7RIBU                                       UPSTREAM  LIMIT OF REAeH
                       -PLLAW--@ R9 --b..                      EH s sme. PNOEZ
                       TYPE OF UAMA(@Il                   STREAM                                      DOWNSTREAM LIMIT OF   I REACH
                                                                                      JDRAINAGF          U. p 6@,
                       PRICE LEVEL OF ICCNDITIONS OF EREFERENCE GAGE OR POINT                         cc+@p rE     DAT        CHECKED BY DATE
                                                                                       AREA.
                                                          @ e                                                        40
                                                            6 L C @4 ESTG-P- (\@ I P@                 WY6            (40

                                                   STAGE (Ft.) FREQUENCY                  DAMAGES     (Dollars)          AVE. ANNUAL DAMAGES
                          FLOOD      DISCHARGE                                                 X                               X too 0
                                        (cfs)       RF) I MSL          %     Interves  At Stage          Average         Interval      Summation
                            (1)          (2)         (3      (4)      (5)     05)           (7)                            (9)            (10)
                                                            2.6- co                          0.0                                          0.0
                                                                              2 (6                           0. 0         0-0
                                                            3, c, z4                         0-0                                          0.0
                       1                                  14,0        13       1             4.9              2.45       0-270            0-270     -
                                                            S.D. &.7          6.5            23.8           14-35        0.904            1.1-74
                                                            6.0       1.1     Za             132.3          79-05        2. 1 IB5         3-359-
                                                                              1.7                         364-00         6.188
                                                                     2,2     -            595-7                                           9-s-4-7
                                                            q, 0     1-43     0.9         1081-7           035.70        7.548         17-095
                                                                 -- 0.6                                  1429.20         8-575
                                                            q.0  - 0.1        0.3    -776.7              21G6-95         6.-gol        25-670
                                                          1 io.0- 0.4 -                   21557-2                                      .32.171
                                                                             0.12         3406.3         2981-75         3- 6778       35-749
                                                            12,6    0. 19    0.09         4265.6         3855-95         3.452         39-202
                                                                             0-o4                        4681-40         1. 873
                                                          113,0      01!5                 50'97-2                                      41.074
                                                                             0.02                     --  5464-45        1. o93        -- -
                                                            14,0    '0.13    -            5831-7                                       42-16,7
                                                                             0.03                       6208-80          1.8,63
                                                            iso o-1          -            6585.9                                       44-03o
                                                                             0.02                       7016-25          1.403         -            -
                                                            ItD.c 10.08 -                 7446-6                                       4S.433
                                                                             0.03                       -7946-90         2.384
                                                            11.6 0.0-5                    8447-2                                   -   47. 6 1 -7
                                                            190 *0.0         0.03         9536.0        9991-60'         2- 697        50* 515

                       REMARKS:

                       NAD Forr" 797
                                75

                                                   BASIN                                       REAgp                                 LT. RT.
                      CALCULATION OF                                            '3A-t              koc-k- WAk-u @-,D                 E:9ANK,=
                 AVERAGE ANNUAL DAMAGES:                   RN                                  UPSTREAM LIMIT OF REACH
                                  @-l -               "fHE STEC-. 2'.j a-- V-                           -
                TYPt UF VAMA44.                     STRIAM                                     DOWNSTREAM LIMIT OF REACH
                --FD,aL_ @7LOOZ@,fjC,            I
                PRICE LEVEL OF   JCZ@NDJTIONS OF rREFERENCE GAGE OR pOIN=-rDRAAINAGE                   F;yj OAT        ICHECKED       TE
                                                                                 ARE                           7?0              BYJDA
                                                                                                                      I C51           (,/go
                    LA                                                               SQ.M1-

                                            STAGE (Ft.) FREQUENCY                    DAMAGES   (Dol I or$          AVE.   ANNUAL DAMAGES
                   FLOOD      DISCHARGE                                                 x @ 1.0                           x 1000
                                 (cfs)       RF       MSL             Interva.   At Stage          Average       Interval       Summation
                                  (2)         (3)     (4)      (5)      (6)          (7)              (8)            (9)           (10)
                                                      2:.       L,)                      0-0                                       0-0
                                                      3.0     -z.4      2-6             0.0           0-0           0-0            0-0
                                                                                                       0.40      0.044
                                                      4,0      13                       0.8                                        0-044
               F                                           - -          6-3                           4.40       0-277
                                                      S.0      6.7                      8-0                                        0.32-1
                                                                        2.8                          20-70       0.580
                                                      6.0               1.7          33 A            95-90       1.630             0.90)
                                                      -7.0    2.2                    158-4                                         2.531
                                                                        0.9                        483-15        4-348-
                                                      q.     11.3     -              807.9                                         6.819
                                                              0.1       0.6          1434.3        1121.10       6.727          13.6.06
                                                             -          0-3
                                                                                                 1792-35         5.377
                                                      io,o o,4                       2150.4
                                                                   -0-12                         2556-30         3.068
                                                      i i. o lo.-26-                 2962.2                                     22-051
                                                                      0.09                       3395-25         3.047
                                                              0.!q    -              38083                                      25-057
                                                      12.0
                                                      3. L)        s  0.04           4630-1      4219-20-        1.688          26-785
                                                                      0.02    -                  4956-85         o.999
                                                      i4.)    0,13    0.03           5363.6      5700-15         1-710          27-784-
                                                              o,1     -              6036.7      6436,--35                ---   29-494
                                                                      0.02                                       1.287
                                                           10. 0 8    0.05           6836-0      7304-80         2.191          30 -792
                                                      7.0 0.0 5 -                    7773-@G                                    32-973
                                                      19.)    0-02    0.05           8810-8      8292-20         2.488          35-461

                REI&ARKS:

                ,4f) Fonn 797
                @ept 75

                                                               BASIN                                           REA5@CC@,               L.U               LT .- RT.
                               CALCULATION OF                                                                                          A                  CqAwC3
                         AVERAGE ANNUAL DAMAGES:
                                                               R I Btj@@JRV                                    UPSTREAM LIMIT OF       REACH
                                PL-AN W-10-                           W LE sTc- e
                       TYPE OF DAMAGE                          STREAM                                          DOWNSTREAM LIMIT        OF REACH
                               A L_     LOODI 0' .          I
                       TRICE-LEVEL OF IC,-NDITIONS OF IREFERENCE GAGE OR POINT TORAINAGE                            F       DATE          CHECKED BY
                                                                                              JAREA.SQ.MI.              By                   Z.Sl;,7    DATE
                            LA                                    L C. @-z E@,Tc-.P-

                                                       STAGE (Ft.) FREQUENCY                      DAMAGES Dollars)                     AVE.  ANNUAL DAMAGES
                          FLOOD        DISCHARCE                                                       x 1 00                                WOOD 0
                                          (Cfsj         RF        MSL        %     Interva&    At St   2 ge         Average            Interval      Summation
                                           (2)         -(3)       (4)     (5)         (6)           (7)                (a)             (9)             (10)
                                                                                                         0.0                                            0.0
                                                                                      26                                0.0            0-0
                                                                  S. 0    1 z4        I 1                0-0            0.25           0.028            0.0
                                                                  4.0     13                             0-5                                          0. 02 6
                      F--                                                             6.3                               1.30           0.082
                                                                  s. 0    (c.7        2.8               2.1           11.35            0.318           0-109
                                                                  (0.0    13-cr       1-7            20.6            42-20             0.7 1 -T         0.427
                                                                  -7.0    2.2                        63.6                                               1.145
                                                                  q, 0    1.3         0-9          224.8             44-3o             1.2199          2.44:3
                                                                  n. A    0.1         0.6         1117.2            671-00             4.026         6-469_
                                                                  10,0    0.4         0.5         1753-8         1435-50               4.307         10-776,
                                                                                   0.12                          2122.55               2.547
                                                                  11.0    10.26    0.09         24 9 1 -3.       2894-85               2.605         1-3-32.3
                                                                  12.0    o.!9     -             5298-4                                              15.92-8
                                                                                   0-04                          3706-05               1-482
                                                                  1,3. 0  c,is     -            4113-7                                               1-7-411
                                                                  14.)    6.13     0-02         4834.0           44-74-25              0.895         18-305
                                                                                   0.03                        - 5169@- SS             1.551
                                                                          o.1      -             5504-9                                              119-SE5(0
                                                                                   0.62                          5859-20               1-1-72
                                                                          0.o8-                  6213-5-                                             21-026
                                                                                   0.03                          6645 -55              1.994
                                                                                   -             7078.4                                              23-022-
                                                                                   0.03             044.2        7561-30               2.268         25.290
                                                                          L -z

                       REkARKS:     DAMAqF-S REMAIWIWC-7 RH-10

                       NAD Form 797
                       @ept      75

                                        *ANNEX F-V

                                        SNOW HILL

                                STAGE-DAMAGE AND AVERAGE
                               ANNUAL DAMAGE COMPUTATIONS

                                          F-V-1

                                                                                                               MMA                                                                                       -- ---- -
                                                              STA'C-4E-- ---D,                         -Su'               R--Y---- -ABLE-
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                                       2                3                 4                  5                  6                  7                  8                9                  10
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                                                                                                    10                                                                    3
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                                                                                                                                             L

                                                        BASIN                                           REACH                                   LT. RT.
                        CALCULATION OF                       CHE SAPP-AkE T30                              SAt(3\A/ WILL, MD                    CJANb
                  AVERAGE ANNUAL DAMAGES TRIA                                                                                  EACH
                                                           ,5,TARY                                      UPSTREAM LIMIT
                                                           I or-OMOKE RNER                                          /\,/
                  TYPE OF DAMAGE                        STREAM                                          DOWNSTREA            OF REACH
                  TDAL @:L-0001@44                   I             tq /A                                              7;@
                  PRICE LEVEL OF 1CONDITIONS OF IREFERENCE GAG                          ZAINAGE         C           DATE
                                                                           E OR POINT JDF -             OMPUT WD           /,,104ECKED BY JDATE
                    UL 191'-)        6 Ase            6) UA R 0 &-                      AREA.  SO.MI-   @m       I //I I             5x Z       //go

                                                STAGE (Ft.) FREQUENCY                     DAMAGES Dollars)                  AVE. ANNUAL DAMAGES
                    FLOOD        DISMARGE                                                           1006                         - x (100
                                   (cfs)         RF        Q&'       %     IntervaL     At Stage          Average          Interval       Summation
                                     (2)         (3)         4     (5)       (6)            (7)                (8)         - (9)              (10)
                                                                   so         c)          010                0.                                 0-0
                                      -                                                                                           o4
                                                           4                              1,6             0.9,0                             . 0.aoL
                                                                   4-.*z   -7, TO       5.5.1            zq, -3 so     -   Z.,-Z11            2.515
                                                                   1.4     Z. te)       1 4a,f           91,950 Z.-743                        5-258
                                                                   a 4 -5  0,990        304"?           zzzlsso 2.07                         7-375
                                                                           0.,2,96                      4-9f.400           1. 37 ( o
                                                                   o.17*                677. 1             1                                 8.751
                                                                           0,6TS                        0/&3'(060          o.919
                                                                   0.6815-              .1 Z 4.f,'3                                          9 -5 -7 0
                                                                   0.0s    01616        1 q47, 0*         64T. ISO         0. 6 4Z          io.1 12
                                                                           .                            21(01-1-so 0,39tO
                                                                   10.63Z               'Z45?q - -5                                         )0-502
                                                                                        3 1 G3.0                                            10.75(c,
                                                                   0,01a                3 13 Z. 7
                                                           14-     10.015  0,001        4 7'73.         5 3.3 4,46 0 0. 0 S 3                .1,064
                                                           15      0.614   0,601        ST -7 S. 7      &460,900 olotp@5                    11-117
                                                           1(a 0.613- 7045.1                                                                11.182
                                                           1 '7    jo.oa   0,06/        9-61?(0.4       -771(o,]SO 0-077                    11-269-
                                                                           61061     0) 0, 1 z 1-9-         S*, /so 0, 0 93                 11-352

                  REMARKS:
                                                          47

                  NAD,Form 797
                  Sept 75

                                                            OAS! N                                         REACH                                    LT.   RT.
                             CALCULATION OF                      ClrIESr-PEA@4z: @34,y                      SN6'-,) L4!L-L tf,                    113  ANLI
                       AVERAGE AWA@
                                                            7-,f ;Xk4ARY
                                                                                                          UPSTREAM LIMIT OF      REACH
                                                                      r 0 t--,O
                      TYPE OF DAMAGE                        STREAM                                         DOWNSTREAM LIMPT      OF REACH
                      7Dt,L
                      -@R@,CE LEVEL OF ICO%DITIONS OF IREFERENCE        GAGE              1DRAINAGE      COMPUTED By DAT            ICHECKED BY JDATE
                                                            C                 OR POINT    AREA.
                                                            _7 L@
                                                                                                S0.MI.
                        J.V. L                                                                                          471 s /9-4

                                                    STAGE (Ft.)          FREQUENCY            DAMAGES     (Dollars               AVE.       UAL DAMAGES
                         FLOOD       DISCRARGE     -                                                 X 1000                               x 1000
                                        (CIS)        17        MSL              Interves      At Stage        Average            Interval     Summation
                                         (2)       -0)          (4)    (5)        (6)            (7)              (8)             (9)             (10).

                                                                                              0, 0
                                                                       i z                    i, (v             0-80             0.304-         O-SO4
                                                                                  7-8                          28-35             2.211
                                                                                              ss,l                                              2-515
                                                                                  2.e                          (3T95             2.743
                                                                       1.4      0.95          1 4o.l-.---            3           ? 117          5-258
                                                                                                              2 22. 0
                                                                      6.45      0.26          *3 o4. 1        491-30             1-376          7375
                                                                 .0   0.17      -             G717                                        -     6-751
                                                             @. 0     10.025    0095          1 -Z 42.7       963-20             0.81.9         -9- SG5      .
                                                              lco     10.6s     0.035         A44.2           1546-*5            0.541 1        10.111
                                                                                0.018                         2163-75            0.389
                                                               11.0   10.o3z-                 7-4-911, 3                                        10.500
                                                               12.0   0. 3Z'2   0.009         3t4s.3          26(4.10            0.253          10-753
                                                                                0.005                         3534,15            0.177
                                                              13.0 3,611 -                    !) 9 Z.,& - 0
                                                               14.0   10.81S    0.003         4,7% 1, a       4352-00            0.131          11. 061
                                                               S.01- 0.001                    MOZA,           S321 -50           O.OS3            .114
                                                                                                              6447-75            O@0,64
                                                                                              70162.7
                                                                                0.001                         7702-60            0.077
                                                                                              2                                                 Ji-
                                                                                              -               9240. 50           0- D 92
                                                               12.0   10.01"t                 10, 107.                                          11.348

                      REMARKS:

                      1%'AD Form 797
                      Sept 75

                                                     LIAS ! 4                                         REAC14                                     LT.  RT.
                      CALCULATION OF                        CHESPIPE-AW-E @3AY                          Sv6w WILL             H 0             1  d
                AVERAH, ANNUAL P!--WGF1R ...          R ;A-,;-@ARY                                    UPSTREAM LIMIT OF REACH
                                               -41        @-'O C 0 f-1. 0 'K E.     oi 1-: P-                       -
               TYPE OF DAMAGE                         STREAM                                          DOWNSTREAM LIMIT OF REACH
               71DAL @:LOVD11)67
              PpicE LEVEL     F   CONDITIONS OF      REFERENCE GAGE     OR POINT JORAINAGE           COMPUTED syl DAJEk. ICHECKED BY         I JDATE
                  t      "T                                                             AREA.                      14-11
                 jU   L                                                                    SO.Mi- 1006
                                                                                                      U
                                              STAGE (Ft.) FREQUENCY                      DAMAGES 813ollars)                 AVE. ANNUAL DAMAGES
                  FLOOD        DISCHARGE                                                        'A 10 0                                X I D00
                                  (cfs)                   MSL      %        Interva,    At Stage           Average          Interval      Summation
                    (1)            (2)       13 j         (4)     (5)       (6)            (7)                (8)             (9)              (10)

                                                          4.       z                                                                         0.20-9
                                                                            7-9                             27-BS           2. 172
                                                          6,0 4.z           2-B         54-(P                .95.40         2.6711           2. 381
                                                          (P.0 1.4          a9s                            2f6-10           2.053            5. 05B         0
                                                                                        z 1(..                                               7.105
                                                                            0.28                            14IT9.20        1-342
                                                                            0.085       (P cozA             939-15          0.758            8.447
                                                            0   10-02-      -           z 15.9                                               9-245
                                                                            0.03S                          1509-75          0.528
                                                          10.0  6.65                    11?0/-@                                        1     .9.774
                                                                   -0-015                            .    2116-9.5          0.381
                                                          u. o  o,nz-                   Z43Z.1                                         -
                                                                            0-009                         2760-70           0.246
                                                                                        10T9.3                                               10.4oSl
                                                                            0.005       31(07-1      1   3475-70            0. 174           10-577
                                                          14.o  MIS         0-003       4 7 IT. 3         4290-20           0. 125           10-706-
                                                                            0-001                         5259-15           OLOS3
                                                                61014       0.001                        63BI-40            0-064
                                                          1(c.0 0 -6t 3     0.001          C*4. 2        7634-05            0.076            10-822
                                                          1-7-0 0. M-2 -                8303.3       - -                               .     10-098
                                                                0           O-OD 1      10, 037.0        9170-65            0.092            10-990

               REMARKS:
              F-@

               NAD Form 797
               Sept 75

                                                      BASIN                                      REACH                               LT. RT.
                          CALCULATION OF                <f                         '694'v            15A/06i /.//ZZI 1771c)            CJA4b
                     AVEME ANNUAL DAMAGES TRIBUTARY                                             UPSTREAM LIMIT OF REACH
                          'P2A'Aj                                           zelyee-
                    TYPE OF DAMAGE                    S EAM                                      DOWNSTREAM LIMIT OF REACH
                       7@zw.L Qcaol-V 4c             I
                                                                                   DRA I NAGE    OMIVTED By[ DATE       ICHECKED BY JDATE
                    P I   LEVEL OF   CONDITIONS OFIREFERENCE GAGE OR POINT         AREA,         -JNIN;?
                       -,7-Vz- '791                   (50,99D SH. eYAMS)               SO.Mi   r              g160       -gS17L        41g6

                                               STAGE (Ft.) FREQUENCY                  DAMAGES    Dollars)           AVE. ANNUAL DAMAGES
                       FLOOD      DISCHARGE                                                 K      0                        x 106 0
                                    (cfs)        RF      MSL      %    jIntervak   At Stage         Average       Interval      Suamation
                                     (2)         (3)     (4)     (5)      (6)          (7)                            (9)           (10)
                                                                           0
                                                                so        36          el 0         0.20             0-074
                                                              112-        70          0, V         1,7.3-          0,/37
                                                                                      311                   ,<,-                a.   z1-3
                                                                                   13r, f                                       2, /S@
                                                         7     14@lys              29 7,,q
                                                         9      0,17               e &/, el .91
                                                                         O-OW"                - 7

                                                                                   /a _-@31 Z
                                                                                                   2/'!m.          0.
                                                                                                   28 13, C        c-2,51

                                                        43
                                                                                                   -11.31,111,0    el /3
                                                                                      M 7
                                                                                   -5-aze' ?
                                                                                                   e
                                                               10, 0 1.3           70-3S-
                                                          7 4,.O/P-                9 3 7@1,
                                                        /(,4 14,011                /d/ae's.        5pz ell, C      e, C-?

                    REMARKS:
                                                                          I'VI'Alc
                   rCE
                       '7

                       Ft

                    NAD FOxm 797
                    Sept 75

                                                         PAS 'N                                             REACH                                        LT.    R-.
                       CALCULATION OF                                                                         'SN6W L41LL P, E>                          C3 ANb
                 AVEPAGE AWNUAL                                 -RY                                         LPSTREAM LIMIT OF'REACH
                       PL, A NI -, _E5 CU. -- b-
                I,: i c-F L)AKAI;E                       STREAM                                             DOWNSTREAM LIMIT OF REACH
                . -I--                                                    -                                              -
                 i I DAL     @:L 0 O'D 10 -47          1
               PP!CE LEVEL          C'@%CITIONS OF REFERENCE GAGE oq POIN,                 IDRAINAGE        -QMPUTED qyj DAT
                                                                                           AREA.                                         CHECKED SY DATE
                                                        (
                                                              t- e             V I Ht   !L      SO.M.1 -                                                 6/60
                                                         f-7

                                                 STAGE (Ft.) FREQUENCY                        DAM1AFGjES Dollars)                  AVE.     ANNUAL DAMAGES
                   FLOOD        DISCHARGE                                                           y                                       x 100 e.)
                                   (cfs)          RF        MSL                Interva,    At Stage             Average            Interval      Sumffra t i on
                     (1)             (2)           (3)      (4)        (5)      (6)             (7)                 (81              (9)               (10)
                                                            3.0      50                             0.0                                                0.0
                                                                                38                                   0.0
                                                            4,6                -                    0.0                                                0.0
                                                                                7-8                                0-770           o-055
                                                                     4.7-       2.8                 1.4             5-20           0. 146              0-055
                                                                     1.4       0.95                 9-0          144 -90           1.377               0.200
                                                                                                200.8                                                  1.577
                                                                               10-20                           4 59P. 2 5          1.286
                                                            11.6     0.17      0.085            637.7           915-00             0.778             2. 06 3
                                                            @.o      0-0125    0.035            1'92- 3       14:87-135            0.521             3.640
                                                                               -                1-763-4.                                             4.1 G I-
                                                                               0.01a                          210.5-15             0-379
                                                                                             2426-5                                                  4.5,40
                                                                               .0-009                         2762-65              0-249
                                                                     0.0232-                 3058.4                                                  4.709
                                                                               .0.005                         3491-20              0-175
                                                            az. 0    o.3 it    -             BBS4.0                                                  4.963
                                                            14.0     0,61S     .0.00-3       4-745.1          4 3 1A .55           0.129             5.093
                                                                               0.001                        . 5284.65              0-053
                                                                               A             5824-6                                                  5. 1 4G
                                                                               0-001                          6404.15              0.064
                                                            [(.7,o   cz t 3 -                6983,7                                                  5-2(0
                                                                               0.001                          7650-25              0.077
                                                                     0.AjZ                   6.316.8                                                 5-28e
                                                                               0-001                          9183-50              0.092-
                                                          112.0                             10050-2                                                  5-378

                REMARKS:

                I\TAD Forr.' 797
                Sept 75

                                                        PAS IN                                                                                 LT . RT.
                                                                                                                                                   ANf-
                          CALCULATION OF                                                               REACH
                                                              %-- Wc-SaPC-A                             GN6W
                    AVERAGE ANNUAL DM4GES                R;- -. RY                                    UPSTREAM LIMIT OF REACH

                         C': L;,.,KACr                   STREAM                                        DOWNSTREAM LIMIT OF REACH
                                                                                                     jb0,WUTED BY
                   IiP'CE LEVEL OF    C,@NDITIONS OF   IREFERENCF GAGE OR     POINT            GE                   DA           CHECKED BY ]DATE
                                                                                        AREA.
                                                                                      111RAINA
                                                                                            S     I.                                    Pj
                                                                                             O.M

                                                 STAGE (Ft.) FREQUENCY                    DAMAGES Dollars)                 AVE. ANNUAL DAMAGES
                      FLOOD       DISCHARM -                                                     .28; 0 0 0                      x 1000
                                     (cfs)        RF        MSL      %      Intervas    At Stage           Average         Interval       Summation
                        (1)           (2)          (3)      (4)     (5)       (6)            (7)               (8)            (9)             (10)
                                                            3.0    6.0        -                 0.0                                           0.0
                                                                              .38                              0.0             0-0
                                                            4.61              7.8               0.0            0.25          0-020            0-0
                                                            S, 6 1 4.z        2.8               0.5            2.          0.0el              d. o2o
                                                                                                5.3                                           0401
                                                                            0.135                            j(0.00            160
                                                            '1. 0  PAS      V-Z0              29.3          307-50         0.861              0.260
                                                                                           586.7                                              1-121
                                                                            0-o85                           e52.75         L,). -T 2 5
                                                               0   10-025-                                                                    1.846
                                                            10-0   16.6     0.035         1698.1           1408-.45        0-493             2.339
                                                            11.0   o.nz     0-01S       2330-6            2014.35          0.36 @!@        2.702
                                                                            0.005                         2662.85          0.240
                                                            1710   C. On                29.95-1                                            2-941
                                                                            0.005                         3385-65          0-169
                                                            ao     o,ols    -           3776-2                                            3.111
                                                                            0.00-3                        4205-40          0- 12(6
                                                            14. 0  0. !S                4634.(o                                           -3-237
                                                                     @- 0-001                            5171-20           0.052
                                                                       14 -             5707.8                                            3-288
                                                            (S.0   6&       V-UV1                         6278-50          0.063
                                                                   10-613-              6849-2                                            3.351
                                                                            0.001                        7513-95           0.075
                                                                   0.01-2-              8178.7            9044-45          0.090          3-42G
                                                                   0
                                                            12.0   0.61kk               9@910 - 2                                         3.517

                   REMAUS:
                                            qSS

                   NAD Form 797
                   Sept 75

                                        ANNEX F-VI

                                       ST. MICHAELS

                                STAGE-DAMAGE AND AVERAGE
                               ANNUAL DAMAGE COMPUTATIONS

                                          F-VI-1

                                                                                 I

                                                             +A(@E_.                                                               ABLE-_           ------    -X.1000

                1                  2                3                 4                   5                  6                 7                    8               9                 10
                                                                                                                                                                         EL          low              MAL.
         ELE        10M _TqTAL___                                --T-OTAL----       TOTAL_-               an@,L                                               'T-  ----                            _T
                                                                                                       _T                    ____AI,,p SAL COL
        rLoot              Rmwwm                                                                                                         @l
                                            UT IL. TRANS              MERCIA        -PUBLIC----         DU3TRIAL                                                         FL
                                 MAGE                                               DA AAR                 m QrL        RF-S. lcotm PUB, It                              Sim                       DAm sE
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                                                                                                                                                                                                                                                                                                          t W-1-1111-D 4

                     CALCULATION OF              BAS I N                                    REACH                                LT. RT.
                                                                                RA-i        ST. MICH-49-L&., Mr>                 c9lb
                AVERAGE ANNUAL DAMAGES 7RIE1UTARY                                          UPSTREAM LIMIT OF
                                                                                                               /EACH
                TYPE OF DAMAGE                    STREAM                                    DOWNSTREAM LIMIT OF REACH
                T-iOA L        I-0001WC-, I                 /V/ A                                        'AJ /A
                PRICE LEVEL OF  CONDITIONS OFIREFERENCE GAGE OR POINT         RA I NAGE           D Byl DATE/       CHECKED BY IDA E
                jLiL 1919         @34SF-          MA'rA     EAK     NIM$    JDAREA.

                                           STAGE (Ft.) FREQUENCY                DAMAGES (Dollars)              AVE. ANNUAL DAMAGES
                  FLOOD      DISCHARGE                                                x fog-1                         X1000
                                (cfs)       RF       MSL     %      IntervaA  At Stage         Average       Interval       Summation
                    (1)          (2)        (3)      (4)    (5)      (6)           (7)             (8)           (9)           (10)
                                                     3      . 540@  -           0.0                                          0.0
                                                                      40                     /0, 450           4.16
                                                     4      /0      -          2 0,(@                                          *460
                                                     5'     4.7     5,30        .351          ZT, 4 .0 0             5         5.465
                                                                    2.66                       1 /.1050 /,7760
                                                            2.      /,20               21-   Z'25,           2. @6F           7461
                                                     '7     1.0                3457,/                                       10-169
                                                            o.48    0.2 (00     75'?                                        13.042-
                                                            0.zz -            1-57-5d                                       /6-078
                                                     10     1 W3    0,00      3/73.0         Z.3-74.050                     10-214
                                                            10-07-  0.660     .5 Z & (P. 7. 4211,SSO                        20-746
                                                                    6,030                    (0 (0 q@,3. (0  Z, 0 07
                                                     12-    10.04             S I /Z I &                                    22-753
                                                     13                                                                     22-e5O
                                                                    '0,60
                                                     14.    10-Oz -          14 zsm                                         25-275
                                                                    6,663                  - 154ZO.'Zoo 6, 4-to3
                                                     Ir
                                                            10,011-          14!S90.3 -                        -            25-738
                                                                                            1 82-150 O'@5Z4-
                                                     1(o    ;.014 0'00'5     1 S 3 -74-.. 0                                 26-262

                REMAIMS:

                NAD Form 797
                Sept 75

                                                              BAS iN                                            REA@H                                     LT. RT.
                                                                      C ;-@ g s f,                                  -'r.      C.-
                              CALCULATION OF                                                                              @@! I W r- S
                        AYFRAGE ANNULL                        TR I BUIARY                                      UPSTREAM LIMIT OF REACH
                                                                          0- E:
                      TYPE 0     DAMA(-.'                     STREAM                                            DOWNSTREAM LIMIT OF REACH
                      p7R -I                                                                  1DRAINAGE                  sy I DATES,,, CHECKED BY DA
                         CE LLVEL   OF    COND I T 1014S OF [CFERENCE GAGI OR POINT            AREA.           COMPUTED                                     TE
                                                              I- IA-74P=@t-'64= (@                                                             eec
                          L,.,-    9     1                                                          SO.M1.

                                                      STAGE (Ft.)           FREQUENCY             DAMAGES (Dolfars)                   AVE.         UA             S
                         FLOOD        DISCHARGE -- --                 -                     ..           X                                            0 @ DAMAGE  -
                                         (cfs)         RF         MSL                Interva&  At Stage             Average         Interval          Summation
                                           (2)          (3)       (4)   . (5)        (6)            (7)                 (8)             (9)             (10)

                                                                                                                                                        0.0
                                                                 4.0      10         40         20.5                 10-4-S           '4-190           4. 190
                                                                                     6.3                             20-06            1.4eT
                                                                                                15,z                                                   5.667,
                                                                                     2.5                             66-95            1.664
                                                                 1P.0    2.2                     '77, ?                                                7-331
                                                                 -7.0     1.0        1.2        317d                207-50            2.490            9-82/
                                                                                     0.92                           460-35            2.354
                                                                            4        0.26       (03.6               996-00            2 B04           12-215
                                                                            z zz                 I 10.4                                               14-619
                                                                                     0.09                         17S7.60             1.682
                                                                        'n-13        0.o6      Z34(0.1            3096 --30           1.558           16-101

                                                                                                                  47T
                                                                                     0.o3                               .9.0          1.434
                                                                        D.04         0.001     S 7 IZZ            6805-00             O.c>619         19 -* 3 93
                                                                 13.0   -3.0i9                  79 17.7                                               19.461
                                                                14. 0 10. 0 2-       0.019     9ql 1.3            8934-50             1- 6-98         21-15-9
                                                                                     0.003                        10796-10            0.324
                                                                                     -        I (I (AZO.?                                             21.463
                                                                                             0.                   12-300-15           0. 36S@
                                                                                               I Zs cl 7q. +                                          21. 852

                      REMARKS:
                     [EOOD

                      NAD Form         797
                      @ept 75

                                                  BAS i -4                                     REACH                                 LT. RT.
                     CALCULATION OF                    C L4ES A                    ra,,@                H I C- w A S I-S t-1, D      C3  AN fn
                AVERAGE ANNI!AL CAM-4r@FS          TPfBUTARY                                  UPSTREAM LIMIT OF REACH
                                                          @', (L- E: S       V P- Z                     -
               TYPE OF DAMAGE                      STREAM                                      DOWNSTREAM LIMIT OF REACH
                                     " ! IJ                   -
                 7TDAL         L00',     '67     1                                           1
              PRICE LEVEL OF     CONDITIONS OF R.FERENCE GAGE OR POINT JDRAAINAGE I.         t-QMPUTED      DAT         CHECKED BY JDATE
                41.A@- '19                                                                                    1- /9
                                                                                                               r
                                                                                 ARE ,SO.M   vy@t      BY 1 4

                                           STAGE (Ft.) FREQUENCY                   DAMAGES (Dollars)               AVE. ANNUAL DAMAGES
                  FLOOD      DISCRARaZ                                                  x 100                             x 1666
                                (efs)        RF      MSL       %      IntervaiL  At Stage          Average         Interval      Summation
                                 (2)         (3)     (4)      (S)      (6)            (7)             (8)            (9)           (10)
                                                     :5. 0                         0.0.
                                                     4.0     10        40        70-9              10-45           4.1180        A-180
                                                                   -   S-@                         20 - S S        1.503         S-663
                                                     @.o    'Z .2      2.5       103.(o            65-70           1 -'743       7-426
                                                                   .   1-2     -                   216-55          2 -559
                                                    1-7.0    1.0       0.52      3Z'@- 6           513-35          2.669         10.025
                                                     % 0    6.42       0.26      (0 9 7. z         1029-60         2.677         12.694
                                                     9.0    0, -Z -z -           11)(0,4.0                                       15.3-71
                                                     [0. 0  10. 13 "   0.09      Z100-S            2031-25         1. 0 2 8      17-199
                                                     11.6   0.61       0-o6      4 4 Z-9.7-        3564.85         2.139         19-338
                                                                   -   o.o3                        SS07-05         1.652
                                                     17., o o.o4 -               &,s 84. 1                                       20-990
                                                     13.0              0.001     1049.1            -7616.so        0.078         2t. 069
                                                     14. 0             0.019     1 It 3 5 5.1      10201-50        1. 93a        23.006,
                                                                       0.003                       12261-05        0.368
                                                     I ct   A.O 0 1 -1 -         13, 1 (A. 4-                                    23.1-74
                                                                       a-COB                       13876.50        0-416
                                                     1 Lo. 0                                                                     23-790

               REMARKS:

               NAD Form 797
               Sept 75            -

                                                           BAG iN                                         REACH                                    LT. RT.
                            CALCULATION OF                                                                          H, i *
                                                                  C P, q sc t.. P    1E TE C\ V                         . c- w A s @- S
                      AVERAGE ANNUAL CAMAC-@,              TPIBUT.ARY                                     UPSTREAM LIMIT OF REACH
                      -.-1PL I"-                                  "(L-Es 7-<,tV=-P-                                -
                    TiPE Uf DAMAGE                         STREAM                                         DOWNSTREAM LIMIT OF REACk
                                                  C-7
                         112AL @7LOOf-@f.Q
                                                                                          DRAINAGE               0 Byl DAj5
                    -PR:CE LEVEL OF     Co,iDITIONS   OF   REFERLNCE GAGE OR POINT                      rOMPUTE           TE
                                                                                          JAREA .
                                                                                                SO.M1   14Y6
                                                                                                          U
                                                   STAGE (Ft.) FREQUENCY                     DAMAGES (Dollars)                 AVE. ANNUAL DAMAGES
                        FLOOD       DISCHARGE                                                     X                                     x 000
                                       (cfs)-       RF        MSL       %       Interva&  At Stage            Average         Interval        Summation
                                        (2)       ___(3)       (4)    -(5)      (6)             (7)               (8)            (9)             (10)
                                                             5.0      =70                       00                                                0-0
                                                                                40                               0-0              0-0
                                                           14.0       10        5.3             0.0               0.65        0.034                0-0
                                                                      4.1                        1..3                                           0.094
                                                                                2.5                              10-55        0.26.4
                                                  1          10.0     17.2      1-2             19-8-          1'78. 10       2.137             o.298-
                                                             -7.o     1.0       -            336-4                                              2.4BS
                                                                                0.52                          542-40          2.820
                                                                        4?      -           743-4                                               5.256
                                                                      10*-z-Z   0.26        1557-5            1152-95         2.998             8.254
                                                             jc,, o   I o. ! 3A 0.09       3145-4-            2352.9          2.118           10-371
                                                                                0.06                          4224-45         2.535
                                                             jj.0               -          5300.5                                             12.9oG
                                                                                0.03       8086-6             6693.55         2.008
                                                             1Z.0     0-o4      0.001                  -      9668-80         0-097           14:914
                                                             13.0     0 - 0 V   0.019     11251-0           12758-75          2.420           15-011
                                                             14.0     o. 0 2-_ -          14226-5                                             17-4B 1
                                                                                0.003                       153-96-85         0.462
                                                                      0.0!- -
                                                                      0 -. 1    0.003    -16567-2.         17459-00           0.524           17-09-3
                                                                      16.014- -          183500                                               18-4-1-7

                    REMARKS:      DAMACjES RGMA1VJ1W,

                    NAD For" 797
                    Sept 75

                                                                PAS; N                                                     REACH                                              LT     RT.
                          CALCULATION OF                                                                                                                                      i@AN
                  AVERAGE ANNUAL CAWrs
                                                              17.R! So' ..ARY                                             UPSTREAM LIMIT OF REACH
                                                                                     5,          V G
                                                                STREAM                                                     DOWNSTREAM LIMIT OF REACH
                      I                              C-7
                PRICE LEVEL Or          CONDiTIONS OF REFERENCE GAGE OR,,POINT,                         RA I NAGE         COWUTEQ           DATE            CMECKED BY DATE
                                                                                     1-14, S     @J. c:,  AREA.                       Byl <0                4-Slt"7
                  -ILA          9                                @,A74 PEL                                    S0.MI -                                                         4/80
                                                                                                                            V
                                                       STAGE (Ft.) FREQUENCY                               DAMAGES (Dollars)                          AVE. ANNUAL           DAMAGES
                    FLOOD           DISCHARGE                                                                     X LO-C 0-                                  x 1 500 ,
                                       (cfs)                        MSL          %      Intervas        At    Stage             Average               Interval          Summation
                                         (2)            f(3         (4)        (5)         (6)                (7)                   (8)                  9                 (10)
                                                                    5. 0                                      0.0                                                             0.0
                                                                                           40                                       0.0                0.0
                                                                    4.0        10          !i3                0.0                   0.05              0.003                   0-0
                                                                                                              0-1                                                           0.003
                                                                    0.0        4.1         2-5                9-                    4.75              0.119                 0.122
                                                                    a,. 0      2. z        1-2                                    52-35               0. 629'
                                                                    -7.0       1.0                          C35.3                                                           0.750
                                                                    <@, 0      n). 4 2     0-52           -712.2              403-75                  2.100                2.850
                                                                    ct. 0      0-12        0-2(o          1515.8                1116.00               2.go2-               5.752
                                                                               0-13        0.09          3114.5                2317-15                2.085               7.637
                                                                                           0.06                                    154-05             2. S I G
                                                                               0.61                      52-73.6 -                            0       2-00 1            10-353
                                                                    12.5.      0.04        0.0-3          8067.6               6670-6                                   12-354
                                                                                           0-0                                 9653.00                0.097
                                                                                                         if 2:38-4                                                      12-451
                                                                                           0.019                              12728-70                2.418
                                                                    i4.0       @-02-                    14219-0                                                         14.869
                                                                                                                              15385-40                0.462
                                                                                                         16551.8             17440-70                 0.523             15-331
                                                                    IL.0                   1-113        1032.9.6                                                        115-854

                  REMARKS:       DAM A (j E-S                       F- 1-1 A I W I M 67 5M-4

                 NAD Form 797
                 Sept 75

                                         ANNEX F-VII

                                      TILGHMAN ISLAND

                                 STAGE-DAIMAGE AND AVERAGE
                                ANNUAL DAMAGE COMPUTATIONS

                                          F-VII-1
                                                I

                                                        STA(@F-
                                                                                         GS-        UMMARY ---. ASL-E
                                                        IL-&HMPIV _7Z:S/-PMC>) 7)'71-3 0777. C o, m D
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                                             --T                                                  @T                     - A,,pp SAL COU 47                   -                           m,&
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                                                    DAM -- DAm            E      D                    M E                         MI PUB.
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                                    S.D.0                                                                               91-71                      2
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                                                                                                                                                           I H tilt -11 _tI
                              11 H:   ;W I I I H-1 11-1-1`1111111-11-111
                                                                                                                                                           . . . . . . . . . . . . .
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                                                                                               7:1               -H., f    11
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            A                11-1111-HIll        11                 11 ItH: I'l 11:11 Hfl 1111111  1 Ifl,      '11111  TI W, I I l
            I                         .. ..      : I                                   -.,-I     . .I .@          -    --
                                                                                                   q,          I I        H.  fl           -1-11-: .111:1111:11,11ti ill III -1filt
                                                                                                                                  I    I I ItIl

                    CALCULATION OF            BASIN                                  REACH                            LT. RT.
               AVERAGE ANNUAL DAMAGES              CwEsAPEAKE BA,-/                     T1 LC-, H M A Is.
                                             7RIBUTARY                              UPSTREAM LIMIT OF ZEACH
                 CHE-IPTI,-                               /V /A
               TYPE OF DAMAGE                 STREAM                                 DOWNSTREAM LIMIT F REACH
                                                              '/A                                      A
               -716AL ;"L00D1t1Ad                          A/
               P
                 E LEVEL OF    Q                                       DRAINAGE
               RIC            ciNDITIONS OF REFERENCE GAGE OR POINT f               :OWUTED ayl DATE       CHECKED BY ]DATE
               JUL. 1c)19                   ic-Hss,r@ AA -              REA             M J:@                :Ttju    Z/ 47  86
                                                               N,
                                       STAGE (Ft.) FREQUENCY               DAMAGES  (Dollars)         AVE. ANNUAL DAMAGES
                FLOOD      DISCHARGE                                            K1000                           Y. 1000
                             (cfs)      RF         MSL        Intervas  At Stage        Average      Interval     Summation
                  -(1)        (2)       (3)        (4) (5)     (6)          (7)            (8)          (9)          (10)
                                                   I   "go                0.0                                        0-0
                                                   2   38    . 52.0        10-5.         0.25                        0-/30
                                                              21.0                       9-35        2.151
                                                   3   15      1, 6         19.2        59-60        5.392           2-281
                                                   4   6      -           101.4                                     7.663
                                                               3.5                      1 it. 30     6.      (0
                                                   S   25     -         Z       2.                                  14,358
                                                               1.4 -                    43*Z,36*     (0.063
                                                       1.1              583.S                                      20.4-11
                                                   40  1                                                                 1
                                                              O.&T                      W 3.4 5      5-7 3 6
                                                   -1  o.42.0.2.s     @ I I a 3.4.      14 s&. go    -5. @ 4 2-   26. 14G-
                                                                                                                     9.789
                                                   C)  6.095           z ro e-) 4. 5                               3(-703
                                                             '                               1. -5 S 1. 2Z4
                                                   to  o.04-1          3 74T. Z                                    32-927
                                                              0.011                     4ZT7,1o 6,72*7
                                                   if  10.05 -          4810.0                                     B3.655
                                                   1z  O.Oz             5815.2                                    34.19(3
                                                   1-3 o.oj(p         68oi. 2                        0 -2 5      @4, +38
                                                              6-OD3                     7234,4oO     6 -z 17
                                                   14  10-013           7668.0                                   34. 6-55
                                                              L),501                    To 47, 3 5   0,016
                                                                        84Z.6.7

               REMARIKS:

               NAD Form 797
               Sept 75

                                                             PASIN                                          REACH                                    LT. RT.
                             CALCULATION OF                                                                                                           13 ANfn
                       AVERAGJF ANNUAL D4MAGPS:                                           '@3AY
                                                             .RIBUTARY                                     UPSTREAM LIMIT OF REACH

                     TYPE OF L)At-%A@:t                      STREAM                                         DOINNSTREAM LIMIT OF REACH
                         @ IDAL       L00DWA)             I                                                                   -
                     PRICE LEVEL OF 1CONDITIONS OF REFERENCE GAGE GR POIN                  DRAINAGE       COMPUTED B@ I DATE           CHECKED BY IDATE
                                                            r            .13       C@Z-   11@ REA. Q.MI_   Wt            14   -                 -   I
                        @UL'19                                                     7tj    6      S                         411 /to I 5@kL
                                                                                                            V
                                                     STAGE (Ft.) FREQUENCY                     DAMAGES     (Do I I ars           AVS. ANNUAL DAMAGES
                         FLOOD       DISCHARGE                                                       x too                                X 1000
                                        (cfs)         FF       MSL        %        InterVaA At Stage             Average         Interval      Summation
                                         (2) -        (3)      (4)       (5) 1 W-                (7)                (8)            (9)              (10)
                                                                                               010.                                                 0.0
                                                               -2.()     1-32      92          0-0                 0.0             0-0              0.0
                                                                         I-        2:3                             0-S5          0-127
                                                                         Is                                                                       0.127
                                                                                   -9                              5.70          OSI31
                                                               4,o       (0 --                 10.3                                       -       0-640
                                                                                   .3-5                          31-50           ]-117
                                                               .5.0      Z.5       1.4        GI's              102-60           1.436
                                                                         1.1                 151.-7       -    247.os            I-6W
                                                                                   0-66
                                                               TO        o.4z.     -            4 Z. 4-        505.7S                             4. e73
                                                               7,0       0.11      0.25       (A U9.1                            1.264            6-137
                                                               q.0 110.09--        A095      11-65.1            902,40           a767             6- 904
                                                                                   0.038                       1642-10           0.624
                                                               [^,A ot4l                     7- Wi-S                                              7-529
                                                                                   LI-017                     2-3SI-65           0.400
                                                               11.0      0,01                zsss.z                                               T- 928
                                                               12,6      10. 01    0.010                      2939-00            0. Z.94          9-22-2
                                                                                   0.004                     3709-65             0. @48
                                                                         C.A       -
                                                               13,0        @1@            -                                                       9- 370
                                                               14.0      6,013     0-00-3    4 .116-1         443S-50            0-IS3            0.1503
                                                                                   0.001                      5058.35            0.051
                                                               I S. 0 1010 1,2,    -                                                              E3.554

                    ------------

                     REMARKS:

                     NAD FOrm 797
                     Sept 75           -

                                                                            SASN
                                                                                                                                           REACH                                                      LT.    RT.
                           CALCULATION OF                                                                              A Y                                14", P-10
                  AVERAGE ANNUAL DIMAGFS                                    7-79UTARY                                                     UPSTREAM LIMIT OF               REACH
                PT-y1h "OF 0 A h tA    IGt -Z-471:.4                        STREAM                                                        DOWNSTREAM LIMIT                OF REACH
                        tDAL            LOODIIJf-@
                          LEVEL 0;7         C 314                                                                  ".4A I N                       ED By DATE/,,                ICHECKED BY DATE
                              1-79                                          Lis C..                             c  A EA                  W4
                        UL       i                                  I C                                         T S0.MI 0
                 PR I CE                         D I T (ON BY-06F TFR                                                        AGE        COwPUT
                                                                            @EFERENCE GAGE'OR,POIN

                                                            STAGE (Ft-) FREQUENCY                                       DAMAGES           (DOI lars                       AVE.       ANNUAL DAMAGES
                     FLOOD             DISCHARGE                                                                                 X to                                                X1 00 -
                                           (cfs)              RF            MSL           %         Intervak         At Stage                   Average                   interval          Summation
                                                                   ) 1      (4)           5            (6)                  (7)                                             (9)                    (10)
                                                               (3
                                                                            1.0                        52                0 1 C)                     0-0                   0-0
                                                                            2,0                    -                      0,0                                                                      0-0
                                                                                                      23                                             0-0                  0.0
                                                                            3,0         Ic         -                     010                                                                       0.0
                                                                                                       .9.0                                         0-4-                  0.036
                                                                            4, 0         (P        -                     0.00                                                                   0-036
                                                                            .5.0       Z.              3.5                                          4-e                   a 16B                 0.204
                                                                                                        1.4                                       15-45                   0.2-16                0-420v
                                                                            1-1,6      6.42-          0.69              -773                    45- 5S                    0.340                 0.760
                                                                                                      0-25                                     121-35                     0.3c>3
                                                                            lq.o       o.i7        -                   i Lo4.9                                                                  1.063
                                                                            q, o       o. oq- r      0-085            7-9s.4                 225-15                       0-191                 1.254
                                                                            10@ 0      0-01          0.038             4 (9. Z              352-30                        0. 1?A                1-359
                                                                                                     0.011                        -          A85-50                       0-083
                                                                            11")       0-01 -                          S51.2                                                                    1.471
                                                                            12-6       0. OZ.         O-DID            (P(0f.0-s             603- 15                      0.061                 1-532
                                                                                                     0.004                S 4.1               710-60                      0. 0 29               1-560
                                                                                                     0.003                                    784-70                      0.024
                                                                            14.0       6.0(3 -                                                                                                  1.584
                                                                                       0             0.001                                     E32 35 - 4 5               aooS
                                                                            is.0       o  51 -z

                  REMARKS:

                 NAD Form 797
                 Sept 75

                                                            SAS: N                                          REACH                                           RT.
                             CALCULATION OF            S:         @- H,=- @-                                                       'ISLjJ3                AN[n
                                                                                  e 4,-       4, Y                     14 t-1 P- K)
                       AVERAGE ANNUAL DAMAGE                  q BUTARY                                      UPSTREAM LIMIT OF      REACH

                      TYPE Of DAMA"t                        STREAM                                          DOWNSTREA14 L1141T     OF REACH
                         k IDAL
                      PRICE LEVEL OF     CONDITI'ONS OF   IREFERENCE GAGE OR POIN           DRAINAGE        COWUTED.13y DATF           ICHEC        DATE
                               119                                                          1AREA. SQ.MI                     16-0 1,0 ' SY-1 71.96
                        11 UL.                                                                              gong (V
                                                     STAGE      (Ft.) FREQUENCY                 DAMAGES     (Dollars)              AVE. ANNUAL DAMAGES
                         FLOOD       DISCHARGE                                                      x     g)                              x I DOO
                                        (Cfe)         RF        MSL       %       IntervaA   At Stage           Average            Interval     Summation
                                         (2)                    (4)   _ (5)       (6)            (7)                (8)              (9)           (10)
                                                                10                               0-0                                                0.0
                                                                                  .52                             0-20             0.104
                                                                                  -              0-4                                               O@ 104
                                                                                  23                              A .50            I-OB5
                                                                                                 E3.6                                                1.139
                                                                                     9                           53-00             4.770
                                                                4,01     (0  -    3-5            97.4            185-20            6.482            5.909
                                                                .S. 0  z..S -                  273.0                                              12-391
                                                                             -      1.4                          420-S5            5.989          18.279
                                                                                  0-69                    -      024-35            5.606
                                                                TO      o.4z.     0.25       1090-6             1431-25            -3-576         2.3.284       1
                                                                7.0 0.17          0.085      1781-9       -     222).75            1-886          27,469
                                                                c?, 0 10-015 -               2661-6               -                               29-35       1
                                                                                  0.038                         S196-05            1.211
                                                                10.0 lo,W -                  3712-1                                               30-5r,>2
                                                                                  0-017                        A241 .50            0.721
                                                                11.o col -                   4770.9                                               31-203
                                                                                  0.01       5772.7             5271-00            0.527          31-010
                                                                121.6 0.          0.004                         6264.55            0.251
                                                                -1                           6756.4                                               32.061
                                                                3.0 0-011Z        0.003                        7199-60-            0-216
                                                                WO                -          7622.3                                       ..      32-276
                                                                                  0-001                         6001-55            0.000                      -

                      REMARKS:    DAMAC7F-S 'RFM41&I1Wc7

                      NAD Form -797
                      Sept 75

                                                     BASIN                                         REACH                                            RT.
                                                                                                                                            C3  ANtn
                      CALCULATION OF                                r PC,   ec.   1@n Ay                            At3     S L
                PIERAGE ANNUAL D.'VAGES:
                                                     .RIBUTARY                                     UPSIREAM LIMIT OF      REACH
                                   TV6
                                                     STREAM                                        DOWNSTREAM LIMIT     OF REACH
                   Ik tDAL PLOOD10f,
                                                                              @@, IDRA AGE                      DATE
               PRicE LEVEL OF     CONDITIONS OF REFERENCE GAGE OR PCIN                  IN       @9!*UTE 8@                 ICHECKED BY   DATE
                                                             'B H. (\,r             AREA.
                    UL                                                    im             so-MI.                                              71,40
                                             STAGE (Ft.)!        FREQUENCY            DAMAGES      (Doll ars            "E. ANNUAI DAMAGES
                   FLOOD       DISCHARGE                                                    X LUO                                Y, 1000
                                 (cfs)         RF       MSL        %    Interv&.    At Stage           Average          Interval      Summation
                                    It
                    S 1)           0)          (3)      (4)      (5)      (6)            (7)               (8)                           (10)
                                                        1.0      96                      0-0                                              0-0
                                                        -2.0    3 ?      52              0.0              0-0              0-0            0.0
                                                                         25                                1-50         a345
                                                        3.0   1 1 G        9             3.0             16-85                            0.345
                                                        ko        (o                    3o.7                                               1.862
                                                                          3.5                          100.2o           Bz07
                                                        5.0    z.s -                          7        313-10           4.35-3           6.365
                                                                          1.4
                                                        (0.0    1. 1                  4s-c.s-                                            9.752
                                                                         0.90                          703.55           4.784
                                                        7. Li  o.4z.   -              ?,0. 4                                          14-536
                                                                      -0-25                           1292.3o           3.231
                                                        7.0    0,11                  143q.0                                           17-767
                                                                      -0-005                          2068-55           1-758.
                                                        q.0 110-09s                  2s-oz, 1                                         19-525
                                                                        0.038                         3050-75           t-is2
                                                        (0,0 0,041.                   36're,                                          20-677
                                                        H-0 0.01        0.017       44 13, 7          4-086-05.         0-69.5        21-371
                                                        12-6 10. 0 1     0-010-     E6 19,            5114-30           0-511         21 - Be3
                                                                        0.004                         6080-05           0.243
                                                        13, 0 -0. 6-1 %0                                                              22-126
                                                        14.0 6.013                                 -  697-3-45          0-209         22.335
                                                                        0.001                         7770-60           0.078
                                                                   0                                                                  22 .4-13

                REMARKS:
                           DAMA,C-7&S

               NAD Forn 797
               Sept 75

                                                        BASIN                                         REACH                                  LT. MT.
                           CALCULATION OF                                            'aAY                                   'I S L., t-i 0   rJAWC3
                     AVERAGE ANNUAL DAMAGES.                    CHSS'n;>EA@4i
                                                        TRIBUTARY                                     UPSTREAM LIMIT OF     REACH
                          PLAN
                   !YPE OF DAMA&@'t                     STREAM                                        DOWNSTREAM LIMIT      OF REACH
                        IDAL ELOOD106
                   TR-tCE LEVEL       CONDITIONS OFIREFERE"CE GAGE OR POIN              ORAINAG[      OMPUTED Byl DATE         CHECKED By
                                                                                        AREA.                        5/,0                   DATE
                             '19                        CHE C.       H                     SQ.MI
                      3UL'19

                                                 STAGE (Ft-          FREQUENCY             DAMAGES (Dollars)                AVE.  ANNUAL DAMAGES
                      FLOOD       DISCHARM                                                       X1000                            x 1000
                                     (cfs)        RF       USL       %       Interva&   At Stage         Average            Interval    Sumusation
                                      (2)        _(3)      (4)     _j 5)     (6)           (7)               (a)            (9)            (10)
                                                           1.6     16                      0-0                                              0-0
                                                                             52                             0-0             0.0
                                                           2.0     -3        23            0-0              0.15            0.035           0.0
                                                           3,0     Is        -             0.3                                            0.03.5
                                                           4.0       ip      9.0           20.2            10-2-5           0.523         0.957
                                                           5.0     z.S       3.5           49-6           34-40             1.204         2.161
                                                           (@0. 0  1. 1      1-4        -259.7           154-15             2.158         4.319
                                                           -7.6    6.42.     0-68       -IB9.5           495-60             :3.397        -7-71(o
                                                           7. 0    0.17  .   0-25       1381-0            1060-25           2.651         10 -3 67
                                                                             0-08-S -                    11301-30           1.531
                                                                   0-015-               2221-6                                            11-998
                                                           io, o o.W         0.038      3268-9          2-745-25            1.04.3        .12-941
                                                                             0.017                      :;800-50            0.64ro
                                                           11.0    0.01      -          4332-1          4834-20             0.483         15-587
                                                                             V-%., I w
                                                           12.6    0 - oz- -            5 3 -3 G - 3                                      14-071
                                                                             0.004                                          0.232
                                                                                        6265-4                                            14-303
                                                                             0.003                      6648-'!)0           0-199
                                                           14,016,013                   7032-4                                            14-507-
                                                                   a         0.001                9     7387-6.5            0.074
                                                           1                            77-42-                                            14-576

                  @REMARKS:

                   NAD FOrm 797
                   Sept 75

                                                                          .                         -

                                                                         11 3 6668 14101 9440 Ir