Located on the Missouri River 75 miles upstream from Bismarck, N.D. Garrison Dam is one of the largest rolled earth-fill dams in the world.
Garrison Dam was constructed as part of the Pick-Sloan Plan for development of the upper Missouri River Basin. Construction on the $294 million dam project began in 1947 and closure of the embankment occurred in April 1953. Earthwork was completed in the fall of 1954.
Today, the public lands and water of Lake Sakakawea provide a variety of benefits to the public, including: recreation, fish and wildlife enhancement, flood control, hydropower production, navigation and irrigation.
Exhibits in the power plant lobby feature displays on the construction and operation of the Garrison Dam and recreational opportunities on Lake Sakakawea. The Corps provides tours of the power plant daily during the summer months and by scheduled appointments the rest of the year.
From Bismark, take U.S. Highway 83 north to Junction Highway 200 and then 10 miles west to Riverdale
Source: U.S. Army Corps of Engineers