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Garrison Dam & Powerhouse

597 Garrison Dam Road
701-654-7411
The Garrison Dam is the fifth largest earthen dam structure in the United States with a volume content of 66,500,000 cubic yards of fill material. Lake Sakakawea, the reservoir created by Garrison Dam, is the third largest reservoir in the U.S. At its maximum pool elevation 1854’ mean sea level, the reservoir holds about 24 million acre-feet of water. The lake is 178 miles long, has over 1530 miles of shoreline, and covers 382,000 surface acres. Garrison Dame provides hydroelectric power production, irrigation, flood damage reduction, navigation, fish and wildlife, municipal and industrial water supply, water quality and recreation. Walk-in tours are available from June 4-August 1 on Thursdays, Fridays, and Saturdays at 2pm.
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