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,
Leasburg Dam State Park Leasburg Dam State Park Leasburg Dam State Park is a state park of New Mexico, United States, located on the Rio Grande. It provides opportunities for camping, hiking, picnicking, swimming, and wildlife viewing. Nearby is the historic Fort Seldon State Monument, and to the south is the city of Las Cruces. The dam at Leasburg was completed in 1908. Its purpose is not to hold back the flow of the river, but instead to divert it into a system of canals for use by nearby farms. Known for its rich history, early settlers used the area as a passage to