Boston Harbor Shipyard & Marina (BHSM) recently installed the 500-ton floating drydock, Providence. The drydock was built in 2021 by Conrad Shipyards, Morgan City, La., and engineered by JMS Naval Architects, Mystic, Conn.
Previously owned by Biblia, Inc., Savannah, Ga., the drydock was acquired by BHSM and transported to Boston as part of a broader effort to expand local marine service capacity.
The 120’x60’ drydock measures 46’ between its wingwalls. It features eight ballast tanks, each with a remotely operated pump and flood gate valve. BHSM said the system is fully computer-controlled from a central control station, and 12 LevelCOM sensors monitor the tank levels and draft at all four corners for accurate leveling. The drydock is outfitted with 10 sliding side-bilge blocks (five per side) which move along tracks to support various hull configurations…