Garrison Dam Tribes. Construction on the $300-million dam project began in 1947, and its embankment was enclosed in April 1953. The dam was dedicated by President Eisenhower two months later. The Corps of Engineers completed earthwork in the fall of 1954. Garrison Dam is one of six Missouri River Main stem dams operated by the U.S. Army Corps of Engineers, Omaha District. The dam upstream of Garrison Dam is Fort Peck Dam (near Fort Peck, Montana). The dams downstream of Garrison Dam are: Oahe Dam (near Pierre, South Dakota), Big Bend Dam (near Fort Thompson, South Dakota), Fort Randall Dam (near Pickstown,
East Brimfield Dam East Brimfield Dam The East Brimfield Dam is located on the Quinebaug River in Sturbridge, Massachusetts, approximately southwest of Worcester, Massachusetts. Designed and constructed by the United States Army Corps of Engineers, this dam substantially reduces flooding along the Quinebaug and Thames rivers. Construction of the project began in 1958 with completion in 1960 at a cost of US$7,020,000. The East Brimfield Reservoir, located in Sturbridge and Brimfield to its west, lies within the Quinebaug River Watershed and is part of the Thames River Basin. Access to the site is available from US Route 20. The project consists of a