2012-14974. Drawbridge Operation Regulation; Sacramento River, Isleton, CA

AGENCY:

Coast Guard, DHS.

ACTION:

Notice of temporary deviation from regulations.

SUMMARY:

The Coast Guard has issued a temporary deviation from the operating regulation that governs the Isleton Drawbridge across Sacramento River, mile 18.7, at Isleton, CA. The deviation is necessary to allow California Department of Transportation to paint and perform routine maintenance on the drawbridge. This deviation allows single leaf operation of the double leaf bascule style drawbridge during the project.

DATES:

This deviation is effective from 7 a.m., June 19, 2012 to 6 p.m. on August 17, 2012.

ADDRESSES:

Documents mentioned in this preamble as being available in the docket are part of the docket USCG-2012-0566 and are available online by going to http://www.regulations.gov,, inserting USCG-2012-0566 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 David H. Sulouff, Chief, Bridge Section, Eleventh Coast Guard District; 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 California Department of Transportation has requested a temporary change to the operation of the Isleton Drawbridge, mile 18.7, over Sacramento River, at Isleton, CA. The drawbridge navigation span provides a vertical clearance of 15 feet above Mean High Water in the closed-to-navigation position. The draw opens on signal from May 1 through October 31 from 6 a.m. to 10 p.m. and from November 1 through April 30 from 9 a.m. to 5 p.m. At all other times the draw shall open on signal if at least four hours notice is given to the drawtender at the Rio Vista bridge across the Sacramento River, mile 12.8, as required by 33 CFR 117.189(a). Navigation on the waterway is commercial and recreational.

Either leaf of the double bascule drawspan may be secured in the closed-to-navigation position from 7 a.m., June 19, 2012 to 6 p.m. on August 17, 2012, to allow Caltrans to conduct painting and maintenance on the bridge. The opposite leaf will continue to operate normally, providing unlimited vertical clearance and 83 feet horizontal clearance between leafs. A work platform will be installed below the secured leaf, reducing vertical clearance by 6 feet. This temporary deviation has been coordinated with waterway users. No objections to the proposed temporary deviation were raised.

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: June 11, 2012.

D.H. Sulouff,

District Bridge Chief, Eleventh Coast Guard District.