Dravo Corporation
Dravo Corporation was an American shipbuilding company with shipyards in Pittsburgh and Wilmington, Delaware. It was founded by Frank and Ralph Dravo in Pittsburgh in 1891. The corporation went public in 1936 and in 1998 it was bought out by Carmeuse for $192 million ($379.3 million today). On March 5, 1942, it became the first corporation to receive the Army-Navy "E" Award for outstanding war time production. Dravo ranked 72nd among United States corporations in the value of World War II military production contracts. By the 1970s, the corporation had moved into the business of building locks and dams on the Ohio River.