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Drawbridge Operation Regulation; Upper Mississippi River, Dubuque, IA

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Coast Guard, DHS.


Notice of deviation from drawbridge regulation.


The Coast Guard has issued a temporary deviation from the operating schedule that governs the Illinois Central Railroad Drawbridge across the Upper Mississippi River, mile 579.9, at Dubuque, Iowa. The deviation is necessary to allow the bridge owner time to perform preventive maintenance that is essential to the continued safe operation of the drawbridge. Maintenance is scheduled in the winter and when there is less impact on navigation; instead of scheduling work in the summer, when river traffic increases. This deviation allows the bridge to open on signal if at least 24 hours advance notice is given.


This deviation is effective from 12:01 a.m., December 18, 2013 to 7 a.m. March 3, 2014.


The docket for this deviation, [USCG-2013-0964] is available at Type the docket number in the “SEARCH” box and click “SEARCH.” Click on Open Docket Folder on the line associated with this deviation. You may also visit the Docket Management Facility in Room W12-140 on the ground floor of the Department of Transportation, West Building, 1200 New Jersey Avenue SE., Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays.

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If you have questions on this temporary deviation, call or email Eric A. Washburn, Bridge Administrator, Western Rivers, Coast Guard; telephone 314-269-2378, email If you have questions on viewing the docket, call Barbara Hairston, Program Manager, Docket Operations, telephone 202-366-9826.

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The Chicago, Central & Pacific Railroad requested a temporary deviation for the Illinois Central Railroad Drawbridge, across the Upper Mississippi River, mile 579.9, at Dubuque, Iowa to open on signal if at least 24 hours advance notice is given for 76 days from 12:01 a.m., December 18, 2013 to 7 a.m., March 3, 2014 to allow the bridge owner time for preventive maintenance. The Illinois Central 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.

Winter conditions on the Upper Mississippi River coupled with the closure of Army Corps of Engineer's Lock No 18 (Mile 410.5 UMR) and Lock No. 22 (Mile 301.2 UMR) until 11:00 a.m., March 4, 2014 will preclude any significant navigation demands for the drawspan opening.

The Illinois Central Railroad Drawbridge, in the closed-to-navigation position, provides a vertical clearance of 19.9 feet above normal pool. Navigation on the waterway consists primarily of commercial tows and recreational watercraft. The drawbridge will open if at least 24-hours advance notice is given. This temporary deviation has been coordinated with waterway users. No objections were received.

In accordance with 33 CFR 117.35(e), the drawbridge must return to its regular operating schedule immediately at the end of the effective period time of this temporary deviation. This deviation from the operating regulations is authorized under 33 CFR 117.35.

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Dated: November 18, 2013.

Eric A. Washburn,

Bridge Administrator, Western Rivers.

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[FR Doc. 2013-28692 Filed 11-29-13; 8:45 am]