Great Lakes Dredge & Dock Corporation Schedules Announcement of 2018 Third Quarter Results

Great Lakes Dredge & Dock Corporation (NASDAQ: GLDD) today announced that it will release the financial results for its three and nine months ended September 30, 2018 on Tuesday, November 6, 2018 at 7:00 a.m. C.S.T. A conference call with the Company will be held the same day at 9:00 a.m. C.S.T. The call in number is [phone] and Conference ID is 7689246. The conference call will be available by replay until Thursday, November 8, 2018 by calling [phone] and providing Conference ID 7689246. The live call and replay can also be heard on the Company’s website, www.gldd.com, under Events & Presentations on the investor relations page. A copy of the press release will be available on the Company’s website.

The Company Great Lakes Dredge & Dock Corporation (“Great Lakes” or the “Company”) is the largest provider of dredging services in the United States and the only U.S. dredging company with significant international operations. The Company is also a significant provider of environmental and remediation services on land and water.  The Company employs experienced civil, ocean and mechanical engineering staff in its estimating, production and project management functions.  In its over 128-year history, the Company has never failed to complete a marine project. Great Lakes has a disciplined training program for engineers that ensures experienced-based performance as they advance through Company operations. The Company’s Incident-and Injury-Free (IIF®) safety management program is integrated into all aspects of the company’s culture. The company’s commitment to the IIF® culture promotes a work environment where employee safety is paramount.  Great Lakes also owns and operates the largest and most diverse fleet in the U.S. dredging industry, comprised of over 200 specialized vessels.

For further information contact: Abby SullivanInvestor Relations630-574-3024