Philly cuts steel on installation vessel for offshore wind

Philly Shipyard is building the first Jones Act-compliant subsea rock installation vessel for Great Lakes Dredge & Dock.

(PHILADELPHIA) – Philly Shipyard and Great Lakes Dredge & Dock Co., the largest provider of dredging services in the United States, on Friday celebrated the cutting of steel for a Jones Act-compliant subsea rock installation vessel (SRIV). When complete, the SRIV will be the first such ship to enter the U.S. offshore wind market.

“(This) is a monumental day in the history of Philly Shipyard,” said Steinar Nerbovik, Philly Shipyard president and CEO. “Over the past several years, we have made a conscious effort to pivot toward a more diversified order backlog. Philly Shipyard is proud to contribute to the delivery of a vessel which will be essential in achieving the nation’s offshore wind targets.”

Philly Shipyard is building the first Jones Act-compliant subsea rock installation vessel for Great Lakes Dredge & Dock.
Philly Shipyard is building the first Jones Act-compliant subsea rock installation vessel for Great Lakes Dredge & Dock. Philly Shipyard rendering

Great Lakes President and CEO Lasse Petterson commented, “We are pleased to be partnering with Philly Shipyard and look forward to continuing our collaborative working relationship during the construction of this first U.S. rock installation vessel.”

The basic design is by Ulstein, a leading Norwegian/Dutch designer of offshore wind vessels. The SRIV is designed to carry up to 20,000 MT of rock and will transport and strategically deposit these rocks to the ocean bottom, laying a foundation for the monopiles which serve as the prevailing support structure for offshore wind turbines. The ship will have an overall length of 461 feet, a breadth of 112 feet, and crew accommodations for 45 people.

The steel-cutting ceremony was bookended with a visit and address by President Joe Biden. The administration has put a focus on expanding offshore wind jobs and local economic development across the country with a goal of deploying 30 gigawatts of offshore wind electricity generation by 2030.

– Philly Shipyard

By Rich Miller