2012-28282. Drawbridge Operation Regulation; Upper Mississippi River, Dubuque, IA

AGENCY:

Coast Guard, DHS.

ACTION:

Notice of temporary deviation from regulations.

SUMMARY:

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 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.

DATES:

This deviation is effective from 7 a.m., December 16, 2012, to 7 a.m. March 4, 2013.

ADDRESSES:

Documents mentioned in this preamble as being available in the docket are part of docket USCG-2012-1002 and are available online by going to http://www.regulations.gov,, inserting USCG-2012-1002 in the “Search” 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 [phone], email [e-mail]. If you have questions on viewing the docket, call Renee V. Wright, Program Manager, Docket Operations, telephone [phone].

SUPPLEMENTARY INFORMATION:

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 in order to facilitate needed bridge maintenance and repairs. The Rock Illinois Central Railroad Drawbridge currently operates in accordance with 33 CFR 117.5, which states the general requirement that drawbridges must open promptly and fully for the passage of vessels when a request to open is given in accordance with the subpart. In order to facilitate the needed bridge work, the drawbridge must be kept in the closed-to-navigation position. This deviation allows the bridge to open on signal if at least 24 hours advance notice is given from 7 a.m. December 16, 2012 until 7 a.m., March 4, 2013.

There are no alternate routes for vessels transiting this section of the Upper Mississippi River.

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 of this temporary deviation. This deviation from the operating regulations is authorized under 33 CFR 117.35.

Dated: November 8, 2012.

Eric A. Washburn,

Bridge Administrator, Western Rivers.