NORWALK, CT To NORTHPORT, NY
DUROCHER MARINE and CONNECTICUT LIGHT AND POWER
Semper replaced the existing seven fluid-filled cables that rest on top of 11 miles of sea bed in Long Island Sound between Norwalk, Connecticut, and Northport, New York, with three state-of-the-art solid core cables that carry the same amount of power. The new cables were buried about six feet beneath the ocean floor using water jet technology to dig the trenches.
This project used the vessel Skagerrak, one of the world's most technologically innovative vessels. The Skagerrak lay's cable with a 7,000 ton capacity turntable and a state of the art Global Positioning System. The GPS controls the positioning of the ship while an underwater jet plow system uses pressurized water to bury the cable below the sea floor. Semper provided personnel and equipment for around the clock dive operations to meet citical path milestones safely and without incident.