Local Notice to Mariners

Choptank River Shoaling
     Shoaling has been reported in the Choptank River along the north side of the channel extending 30 to 40 feet channelward with a reported depth of 1.0 feet MLW at the following locations:
     A. Choptank River Channel Daybeacon 68 (LLNR 25275) to Choptank River Channel Daybeacon 73 (LLNR 25290).
     B. Choptank River Channel Daybeacon 75 (LLNR 25295) to Choptank River Channel Daybeacon 77 (LLNR 25300).
     C. Choptank River Channel Daybeacon 78 (LLNR 25305) to Choptank River Channel Daybeacon 79 (LLNR 25310).
     Mariners should use extreme caution when transiting the area. Chart: 12268.

Pennington Avenue Bridge repairs
     The Pennington Ave. Bridge is undergoing structural repairs to the south bascule span until 28 March, 2011. A barge is located under the east side span reducing the navigable channel to 100 feet . Transiting vessels may contact the bridge tender at 410-396-1154 or 410-916-2833/0935 if necessary. Mariners are advised to use extreme caution when transiting the area. Chart: 12281.

Baltimore Historic Ships Moving
     Mariners are advised that two Historic Ships in Baltimore museum vessels, the 312-foot submarine U.S.S. TORSK and the 199-foot sloop-of-war U.S.S. CONSTELLATION, are scheduled to be towed in the Patapsco River on or about Thursday, March 17, 2011. Plans include towing the TORSK and the CONSTELLATION separately on the same day, within Baltimore Harbor, from the Sparrows Point Shipyard facility to the vessels’ Baltimore’s Inner Harbor berths. Interested mariners may contact the primary tug via marine band radio channels 16 and 13 VHF-FM. For any comments or questions, contact Sector Baltimore Waterways Management Division at (410) 576-2674. Charts: 12281, 12278.

Knapps Narrows Bridge inspections
     Mariners are advised that routine inspections will be performed at the MD-33 Bridge across Knapps Narrows, in Tilghman Island, MD each day, from 8 a.m. to 5 p.m., beginning March 14 through March 18, 2011. To facilitate the operation, inspection personnel and equipment will be in proximity to the navigable channel. Also, a work boat will assist with the inspection effort; the crew will relocate from the movable span and channel upon request from vessels. Mariners should use extreme caution when transiting the area. Chart: 12272.

Weems Creek Bridge inspections
     Mariners are advised that routine inspections will be performed at the MD-437 Bridge, at mile 0.7, across Weems Creek, in Annapolis, MD each day, from 8 a.m. to 5 p.m., beginning March 14 through March 18, 2011. To facilitate the operation, inspection personnel and equipment will be in proximity to the navigable channel. Also, a work boat will assist with the inspection effort; the crew will relocate from the movable span and channel upon request from vessels. Mariners should use extreme caution when transiting the area. Chart: 12282.

Dundalk navigation hazard
 A 36” steel bollard has sunk near the Dundalk Marine Terminal in approximate position 39-14.30N, 076-31.40W. Mariners are urged to use caution when transiting the area. Chart: 12281.

Tappahannock River diving operations
     Crofton Diving Corp. is conducting diving operations in the Tappahannock River at approximate position 37-52—38N, 076-46-11W from 24 February until 31 December, 2011 in support of overhead power line repair/construction. Barges and support vessels will be moored along the channel limit and will not obstruct navigation. Mariners should use extreme caution and NO WAKE when transiting the area. Chart: 12237.
For the complete Local Notice to Mariners visit http://navcen.uscg.gov/pdf/lnms/lnm05112011.pdf