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CT: Long Island Sound Eastern Part - New London Harbor, General Dynamics Electric Boat Graving Docks, Vessel Repairs
- Date Reported: Apr 18, 2026
- Reporter: Waterway Guide Staff
- Source: USCG District 1
- Description:
General Dynamics Electric Boat will be conducting vessel repairs using a cofferdam at the General Dynamics Electric Boat Graving Docks on the Thames River in Groton, CT. These operations are scheduled to take place 24 hours a day from April 22, 2026, through April 30, 2026.
The work will be located near the waterline exterior to the vessel. Mariners are urged to transit at their slowest safe speed to produce no wake in the area and to exercise caution when navigating the Thames River near the facility.
- Lat / Lon: N 41° 20.612' / W 072° 04.947'
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