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 dismantled and kept in storage until 1978, when the Park Service donated it to the State of Tennessee. Along with the oxen-driven threshing machine and a mini-museum of 19th and early 20th-century farm tools, the barn houses a section of the massive Tregonia Elm, which was once believed to be the largest elm tree in the United States. Norris Dam State Park Norris Dam State Park is a state park in Anderson County and Campbell County, Tennessee, in the southeastern United States. The park is situated along the shores of Norris Lake, an impoundment of the Clinch River created by