LNM01-E50202
SÉCURITÉReceived 23 Sept 2026, 00:00 UTC
Warning text
LONG ISLAND SOUND EASTERN PART - NEW LONDON HARBOR
General / Marine Construction (Excluding Bridges) / Dredging
To: 2030-06-30 Marine construction and dredging operations are scheduled to occur on or about November 1, 2026, through June 9, 2030, in New London Harbor on the Thames River adjacent to the General Dynamics Electric Boat Facility in Groton, CT, between Graving Dock #2 and Graving Dock #3. Operations will include wet berth pier construction, dredging, and associated marine support activities, with barges, dredging equipment, tugboats, survey vessels, and other support equipment operating in the area. A mooring may be established in New London Harbor Anchorage A and/or Anchorage B for staging barges. Mariners are advised to transit the area at the slowest safe speed, minimize wake, and proceed with caution. Project vessels will monitor VHF-FM Channels 16 and 13, with a designated working channel to be established. Passing arrangements should be coordinated via VHF radio, or in advance by telephone when necessary, and approximately 30 minutes may be required to clear the navigation area for vessel passage depending on operational and environmental conditions.
Valid 2026-11-01 until further notice.
USCG Northeast District Local Notice to Mariners 45/2026