Philly Shipyard to build subsea rock vessel for Great Lakes Dredge

The Jones Act ship, slated for delivery in 2024, will service America's offshore wind industry

(HOUSTON) — Great Lakes Dredge & Dock Corp. has signed a contract with Philly Shipyard to build the first U.S.-flagged, Jones Act-compliant inclined fallpipe vessel for subsea rock installation. This vessel will service America’s growing offshore wind energy industry and help reach the Biden administration’s goal of 30 gigawatts of offshore wind power by 2030.

“This contract, valued at approximately $197 million, marks a milestone for our company, the U.S. offshore wind industry and our nation,” said Lasse Petterson, Great Lakes Dredge & Dock’s president and chief executive officer. “Offshore wind will play a crucial role in helping the U.S. meet its decarbonization and clean energy goals. The unique, technologically advanced vessel we are constructing is an essential step toward building the marine infrastructure required for this new industry, which holds so much promise for our nation economically and environmentally.”

12 3 2020 Jones Act Wind Eneregy Vessel

Great Lakes Dredge & Dock Corp. photo

The vessel will be U.S.-owned, U.S.-built, U.S.-operated and crewed by American union workers, and will meet all conditions of the Jones Act. The vessel will transport and strategically deposit loads of rock on the seabed, laying scour protection for offshore wind farm foundations, cables and other structures. The ship will have an overall length of 461 feet and a breadth of 112 feet. Further, the vessel is expected to help spur additional job growth and regional economic opportunities through the creation of a U.S.-based rock supply chain network, which will be needed to supply subsea rock installation activities, from quarries in states along the East Coast.

“World-renowned engineering firm Ulstein Design and Solutions B.V. was commissioned by the company to design the vessel using state-of-the-art technology, equipment and automation,” said Eleni Beyko, Great Lakes Dredge & Dock’s senior vice president, offshore wind. “The design was reviewed and approved by the American Bureau of Shipping and will be built with best-in-class safety and low emissions standards, EPA Tier 4 engines and plug-in capability to obtain power from shore while loading. The vessel will be able to run on biofuel, which reduces the ship’s CO2 footprint, and it will be equipped with advanced active emissions control technology to reduce NOx emissions to a minimum. The installed battery pack will shave peak loads to reduce fuel consumption and corresponding emissions. The vessel is expected to be sea-ready by Q4 2024, to coincide with major offshore wind project construction timelines previously announced.”

– Great Lakes Dredge & Dock Corp.

Categories: Maritime News, Offshore Wind, Shipbuilding