[House Document 104-231]
[From the U.S. Government Publishing Office]





104th Congress, 2d Session - - - - - - - - - - House Document 104-231


 
                  HUMBOLDT HARBOR AND BAY, CALIFORNIA

                               __________

                             COMMUNICATION

                                  from

           THE ASSISTANT SECRETARY OF THE ARMY (CIVIL WORKS)

                              transmitting

  A LETTER FROM THE CHIEF OF ENGINEERS, DEPARTMENT OF THE ARMY DATED 
OCTOBER 30, 1995, SUBMITTING A REPORT TOGETHER WITH ACCOMPANYING PAPERS 
                           AND ILLUSTRATIONS




    June 10, 1996.--Referred to the Committee on Transportation and 
               Infrastructure and ordered to be printed.



                   HUMBOLDT HARBOR AND BAY, CALIFORNIA



104th Congress, 2d Session - - - - - - - - - - House Document 104-231


                  HUMBOLDT HARBOR AND BAY, CALIFORNIA

                               __________

                             COMMUNICATION

                                  from

           THE ASSISTANT SECRETARY OF THE ARMY (CIVIL WORKS)

                              transmitting

  A LETTER FROM THE CHIEF OF ENGINEERS, DEPARTMENT OF THE ARMY DATED 
OCTOBER 30, 1995, SUBMITTING A REPORT TOGETHER WITH ACCOMPANYING PAPERS 
                           AND ILLUSTRATIONS




    June 10, 1996.--Referred to the Committee on Transportation and 
               Infrastructure and ordered to be printed.


                            C O N T E N T S

                              ----------                              
                                                                   Page
Letter of Transmittal............................................   vii
Comments of the Office of Management and Budget..................    ix
Comments of the State of California..............................     x
Comments of the Department of the Interior.......................    xi
Letter to the Department of Interior.............................  xiii
Comments of the Department of Transportation.....................  xvii
Report of the Chief of Engineers, Department of the Army.........     1
Report of the District Engineer..................................     8
Executive Summary................................................     8

1.                           Introduction..................         9   
1.1                          Study Authority...............         9   
1.2                          Study Purpose and Scope.......         9   
1.3                          Local Sponsor.................        10   
                             Study Participants &                  10   
                              Coordination.                             
1.4                          Previous Studies..............        11   
1.5                          Planning Process of the Corps         13   
                              of Engineers.                             
1.6                          Report Organization...........        13   
2.                           Study Area Description........        14   
2.1                          Description of the Study Area.        14   
                                 Harbor Location and               14   
                              Description.                              
                                 Existing Navigation               14   
                              Project.                                  
                                 Population Centers........        17   
                                 Transportation............        17   
2.2                          Environmental Conditions......        19   
                                 Physical Conditions.......        19   
                                 Climate...................        19   
                                 Geology...................        19   
                                 Hydrology.................        19   
                                 Sedimentation.............        19   
                                 Wave Conditions...........        19   
                                 Currents..................        20   
                                 Seismicity................        20   
                                 Biological Resources......        20   
                                 Mammals...................        21   
                                 Birds.....................        22   
                                 Fish......................        22   
                                 Threatened and Endangered         23   
                              Species.                                  
                                 Socio-Economic Conditions.        23   
3.                           Problems and Needs............        25   
3.1                          General.......................        25   
3.2                          Public Concerns...............        25   
                                 Harbor Operation &                25   
                              Development Plan.                         
3.3                          Problems and Opportunities....        26   
                                 Problem No. 1, Navigation         27   
                              Safety.                                   
                                 Problem No. 2, Navigation         27   
                              Inefficiencies.                           
                                 Cargo Volume..............        27   
                                 Fleet Mix.................        28   
                                 Planning Objectives.......        28   
3.5                          Planning Constraints..........        29   
4.                           Plan Formulation..............        30   
4.1                          Overview......................        30   
4.2                          ``Without'' Project Plan......        30   
4.3                          Channel Components & Turning          30   
                              Basin Location.                           
                                 North Bay Channels........        30   
                                 Navigation Simulation             31   
                              Study.                                    
                                 Operational Situation.....        31   
                                 Navigation Simulation Test        31   
                              Results.                                  
                                 683 Foot-Long 60,000 DWT          31   
                              Ship.                                     
                                 585 Foot-Long 41,0000 DWT         31   
                              Ship.                                     
                                 Design Option 1 Test Runs.        32   
                                 Design Option 2 Test Runs.        33   
                                 Design Option 3 Test Runs.        33   
                                 Summary & Results of the          37   
                              Navigation Simulation Study.              
                                 Turning Basin Location....        37   
                                 North Bay Turning Basin...        37   
                                 Samoa Turning Basin.......        37   
                                 North Bay Channel Turning         37   
                              Basin.                                    
4.4                          Dredged Material..............        40   
                                 Sediment Quality..........        40   
                                 Dredged Material Disposal         40   
                              Site Options.                             
                                 Ocean Disposal............        40   
                                 Beach Disposal............        40   
                                 Upland Disposal...........        43   
4.5                          Formulation of the Plan.......        43   
                                 Final Array of Alternative        43   
                              Plans.                                    
4.6                          Channel Depth Determination...        47   
4.7                          Plan Evaluation...............        50   
                                 Evaluation Criteria.......        50   
                                 Effectiveness.............        50   
                                 Efficiency................        50   
                                 Completeness..............        50   
                                 Acceptability.............        51   
4.8                          Plan Evaluation by Resource           51   
                              Account.                                  
                                 National Economic                 51   
                              Development Account (NED).                
                                 Environmental Quality (EQ)        51   
                              Account.                                  
                                 Regional Economic                 52   
                              Development (RED) Account.                
                                 Other Social Effects (OSE)        52   
                              Account.                                  
5.                           Selected Plan.................        53   
5.1                          Plan Selection................        53   
5.2                          Description of the Selected           56   
                              Plan.                                     
                                 General Design                    56   
                              Considerations.                           
                                 Channel Design............        56   
                                 Design Vessel.............        56   
                                 Navigation Consideration          65   
                              for Channel Design.                       
                                 Channel Side Slopes.......        66   
                                 Design of Channels........        66   
5.3                          Disposal Sites................        67   
                                 Ocean Disposal Site.......        67   
                                 Upland Disposal Site......        67   
5.4                          Dredging Plan.................        69   
5.5                          Operation and Maintenance             69   
                              Requirements.                             
5.6                          Project Economics.............        70   
                                 Project Costs.............        70   
                                 Cost Estimates............        70   
                                 Project Economic Benefits.        76   
                                 B/C Ratio for Selected &          77   
                              Locally Preferred Plan.                   
                                 Cost Apportionment........        77   
                                 Total Project Investment          77   
                              Cost.                                     
                                 Fully Funded Cost Estimate        77   
                                 Non-Federal Cost Sharing..        77   
5.7                          Real Estate Requirements......        79   
5.8                          Environmental Impacts.........        79   
5.9                          Mitigation Plans/Other                79   
                              Commitments.                              
5.10                         Risk and Uncertainty..........        82   
5.11                         Plan Implementation...........        83   
6.                           Coordination and Public               86   
                              Involvement.                              
6.1                          Public Meetings, Workshops and        86   
                              Report Circulation.                       
6.2                          Feasibility Study Involvement.        86   
6.3                          Circulation of the Feasibility        86   
                              Report.                                   
6.4                          Views of the Local Sponsor....        87   
7.                           Conclusions and                       88   
                              Recommendations.                          
                                                                        

Recommendation of the Division Engineer..........................    90
Environmental Impact Statement/Report............................    91

                               ----------
      APPENDICES ACCOMPANYING THE REPORT OF THE DISTRICT ENGINEER
                   (Only Appendices B and C Printed)

Appendices:
    A. Engineering Analysis.
    B. Economic Analysis.........................................   619
    C. Project Schedule..........................................   654
    D. Real Estate Plan.
    E. Financial Analysis.
    F. Letter of Intent To Use The LP Site.



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