[Federal Register Volume 77, Number 94 (Tuesday, May 15, 2012)]
[Rules and Regulations]
[Page 28488]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2012-11538]


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DEPARTMENT OF HOMELAND SECURITY

Coast Guard

33 CFR Part 117

[Docket No. USCG-2012-0378]


Drawbridge Operation Regulation; Upper Mississippi River, 
Hannibal, MO

AGENCY: Coast Guard, DHS.

ACTION: Notice of temporary deviation from regulations.

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SUMMARY: The Coast Guard has issued a temporary deviation from the 
operating schedule that governs the Hannibal Railroad Drawbridge across 
the Upper Mississippi River, mile 309.9, at Hannibal, Missouri. The 
deviation is necessary to allow the replacement of eight wire rope 
lifting cables that operate the lift span. This deviation allows the 
bridge to remain in the closed position while the lift cables are 
replaced.

DATES: This deviation is effective from 9 a.m. to 3 p.m. on or about 
June 5, June 7, June 12 and June 14, 2012.

ADDRESSES: Documents mentioned in this preamble as being available in 
the docket are part of docket USCG-2012-0378 and are available online 
by going to http://www.regulations.gov, inserting USCG-2012-0378 in the 
``Keyword'' box and then clicking ``Search''. They are also available 
for inspection or copying at the Docket Management Facility (M-30), 
U.S. Department of Transportation, West Building Ground Floor, Room 
W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590, between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.

FOR FURTHER INFORMATION CONTACT: If you have questions on this rule, 
call or email Eric A. Washburn, Bridge Administrator, Western Rivers, 
Coast Guard telephone 314-269-2378, email [email protected]. If 
you have questions on viewing the docket, call Renee V. Wright, Program 
Manager, Docket Operations, telephone 202-366-9826.

SUPPLEMENTARY INFORMATION: The Norfolk Southern Corporation requested a 
temporary deviation for the Hannibal Railroad Drawbridge, across the 
Upper Mississippi River, mile 309.9, at Hannibal, Missouri to remain in 
the closed-to-navigation position for four 6-hour individual closures 
while the eight wire rope lifting cables that operate the lift span are 
replaced. The closure period will be from 9 a.m. to 3 p.m. on or about 
June 5, June 7, June 12 and June 14, 2012.
    Once the wire rope lifting cables are removed, the lift span will 
not be able to open, even for emergencies, until the replacement wire 
rope lifting cables are installed.
    The Hannibal Railroad Drawbridge currently operates in accordance 
with 33 CFR 117.5, which states the general requirement that 
drawbridges shall open promptly and fully for the passage of vessels 
when a request to open is given in accordance with the subpart.
    There are no alternate routes for vessels transiting this section 
of the Upper Mississippi River. The Hannibal Railroad Drawbridge, in 
the closed-to-navigation position, provides a vertical clearance of 
21.1 feet above normal pool. Navigation on the waterway consists 
primarily of commercial tows and recreational watercraft. This 
temporary deviation has been coordinated with the waterway users.
    In accordance with 33 CFR 117.35(e), the drawbridge must return to 
its regular operating schedule immediately at the end of the designated 
time period. This deviation from the operating regulations is 
authorized under 33 CFR 117.35.

    Dated: May 2, 2012.
Eric A. Washburn,
Bridge Administrator, Western Rivers.
[FR Doc. 2012-11538 Filed 5-14-12; 8:45 am]
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