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 embankment dam has an installed capacity of 786MW. Oahe 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 Atatürk Dam from Turkey.

 Compare Oahe Dam with Wyangala Dam from Australia.