Great Lakes Dredge & Dock Corp., Houston, has been awarded a third rock installation contract to perform subsea rock cable protection on an offshore wind project off the U.S. East Coast.

The company’s prior contracts have been for subsea rock installation for foundation stabilization, and this contract represents a new utilization for its planned vessel.

Great Lakes will use the first Jones Act compliant subsea rock installation vessel, the 461'x112' Acadia, currently under construction at the Philly Shipyard in the U.S. to execute the project. The project scope includes procurement of rock from its U.S. supply chain, transportation to and from the project site, and subsea installation of the rock to support the wind farm's infrastructure.

Operations on the project are expected to begin in 2025 and are expected to continue into 2026. Great Lakes will be generating local content, employment, and economic activity in the U.S. by purchasing rock from domestic quarries and loading the rock at U.S. ports.

“This project award further confirms Great Lakes’ ambition and leadership to support the emerging U.S. offshore wind industry and we look forward to expanding our participation in this market over the coming years," Lasse Petterson, president and chief executive officer at Great Lakes, said in a statement.

The project remains subject to the client’s final investment decision (FID). The client’s name was not released.