Garrison Dam

Garrison Dam is an earth-fill embankment dam on the Missouri River in central North Dakota. Construction on the dam began in 1947 and was completed in 1954.

The dam includes five electric generating units with a collective capacity of 583,300 kilowatts (kW). The electricity generated by the Garrison Dam is marketed through the Western Area Power Administration(WAPA). WAPA is one of four power-marketing administrations within the US Department of Energy.

The NMPA-Minnkota Joint System have an allotment of energy from the Garrison Dam equivalent to approximately 101,000 kW.