OAK BROOK, Ill., June 9, 2020 (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 the execution of a definitive contract for the construction of a 6,500-cubic-yard-capacity Trailing Suction Hopper Dredge. With expected delivery in the 1st quarter of 2023, the