Garrison

U.S. Army Corps of EngineersMercer CountySPP

Garrison is the 583 MW hydroelectric plant at Garrison Dam on the Missouri River in North Dakota, built by the U.S. Army Corps of Engineers and the state's only hydropower producer. Five Francis turbines drive the plant, and the first three began operation in 1956, after the earth-fill dam was completed in 1953. The plant supplies about five percent of North Dakota's electricity, with much of its output marketed in Minnesota, Iowa and Nebraska.