Empire Wind I and II are expected to provide over 2 Gigawatts (GW) of renewable energy to the State of New York. HOUSTON, (GLOBE NEWSWIRE) - Great Lakes Dredge & Dock Corporation ('Great Lakes' or the “Company”) (NASDAQ: GLDD), the largest provider of dredging services in the United States, announced today that Empire Offshore Wind, a joint venture between Equinor (NYSE: EQNR) and bp (NYSE: bp), have chosen Great Lakes in consortium with Van Oord to perform the subsea rock installation work for the Empire Wind I and II wind farms in the East Coast of the United States. First offshore wind rock installation contract awarded to a U.S.

The Company’s commitment to the IIF® culture promotes a work environment where employee safety is paramount.Van Oord’s flexible fallpipe vessel, Stornes. The Company’s Incident-and Injury-Free® (IIF®) safety management program is integrated into all aspects of the Company’s culture. Great Lakes has a disciplined training program for engineers that ensures experienced-based performance as they advance through Company operations. dredging industry, comprised of approximately 200 specialized vessels. Great Lakes owns and operates the largest and most diverse fleet in the U.S. In its over 132-year history, the Company has never failed to complete a marine project. The Company employs experienced civil, ocean and mechanical engineering staff in its estimating, production and project management functions. The Company has a long history of performing significant international projects. In addition, Great Lakes is fully engaged in expanding its core business into the rapidly developing offshore wind energy industry. Great Lakes Dredge & Dock Corporation (“Great Lakes” or the “Company”) is the largest provider of dredging services in the United States. A copy of the press release will be available on the Company’s website. The live call and replay can also be heard at or on the Company’s website, under Events on the Investor Relations page. Pre-registration may be completed at any time up to the call start time.

Participants who pre-register will be given a unique PIN to gain immediate access to the call. Investors and analysts are encouraged to pre-register for the conference call by using the link below.

A conference call with the Company will be held the same day at 9:00 a.m. 08, 2023 (GLOBE NEWSWIRE) - Great Lakes Dredge & Dock Corporation (NASDAQ: GLDD) today announced that it will release the financial results for its three and twelve months ended Decemon Wednesday, Februat 7:00 a.m.

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