LNM01-0CB508
SÉCURITÉReceived 23 Sept 2026, 00:00 UTC
Warning text
Positions open on the mapNEW LONDON HARBOR - THAMES RIVER
General / Marine Construction (Excluding Bridges) / Dredging
Location: 41-24.03N 072-05.78W Cashman Dredging and Marine Contracting Co., LLC plans to begin dredging operations on or about October 1, 2026, for the Naval Submarine Base New London Pier 31 Extension project in Groton, Connecticut. Work will occur in the Thames River adjacent to Naval Submarine Base New London/Pier 31in position 41°24'01.720"N, 72°05'47.050"W and is expected to continue through January 31, 2027, operating 24 hours per day, seven days per week. The project is authorized under U.S. Army Corps of Engineers Permit No. NAE-2023-00668. Equipment may include the dredge Icarus, split-hull dump scows Joe V and Eddie C, a survey boat, tugboats, and other support equipment. Project vessels will monitor VHF Channels 16 and 13, with a working channel to be determined. Mariners transiting the area should proceed with caution, maintain a safe distance from dredging equipment, and coordinate passing arrangements by VHF radio. Dredged material will be transported to the U.S. Navy Confined Aquatic Disposal Cell Center. Mariners requiring passage through the work area are encouraged to provide advance notice when practicable, as clearing the navigation area may take approximately 30 minutes depending on conditions.
Valid 2026-10-01 to 2027-01-31.
USCG Northeast District Local Notice to Mariners 45/2026