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,
Norris Dam State Park dam to the base of River Ridge at the Claiborne-Grainger county line. The lake also spans the lower of the Powell River from the river's mouth to a few miles south of Harrogate, and the lower of Cove Creek. The Norris Dam Reservation, which is managed by the Tennessee Valley Authority, consists of the area immediately around Norris Dam and immediately downstream from the dam on both sides of the Clinch. The western half of the reservation, which is largely undeveloped, is known as the River Bluff Small Wild Area. Norris Dam State Park consists of two sections along the