Dams in Sioux County, South Dakota
1Total Dams
1High Hazard
0Significant
Dam Safety in Sioux County, South Dakota
Sioux County has 1 dams tracked in the National Inventory of Dams. Of these, 1 are classified as high hazard — meaning failure would probably cause loss of human life.
The average dam in Sioux County is 60 years old. The most common purpose is flood risk reduction. The tallest dam is Oahe Dam - Fort Yates Flood Protection Project at 245 ft.
Explore more: Oldest dams in South Dakota · Tallest dams · High risk dams · Largest reservoirs
Data note: Hazard potential describes the consequences if a dam failed; it does not predict the likelihood of failure. Inspection, condition, and emergency-plan fields can be incomplete or delayed. Check state dam-safety officials and local emergency managers for official guidance.
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Oahe Dam - Fort Yates Flood Protection Project | High | Not Available | 245 | Flood Risk Reduction | 1966 |