Great Lakes Dredge & Dock Corporation Declares Quarterly Cash Dividend of $ .017

Great Lakes Dredge & Dock Corporation

announced today that its board of directors has declared a quarterly cash dividend on its common stock. The board approved a $0.017 per share cash dividend, to be paid on September 17, 2010 to the holders of record of common stock of the company at the close of business on September 10, 2010. Great Lakes Dredge & Dock Corporation is the largest provider of dredging services in the United States and the only U.S. dredging company with significant international operations.