Located in Hughes/Stanley counties, South Dakota, United States, Oahe Dam is an embankment dam. It was built in 1963 (59 years since completion).
The installed capacity of Oahe Dam is 786MW. The embankment dam stands 75 meters tall and can impound up to 29 billion m3 of water. Its structural volume is 70.30 million m3.
Compare Oahe Dam with Robert-Bourassa Generating Station from Canada.