Dams in Minnehaha County, South Dakota
16Total Dams
0High Hazard
3Significant
Dam Safety in Minnehaha County, South Dakota
Minnehaha County has 16 dams tracked in the National Inventory of Dams. Another 3 carry a significant hazard classification.
The average dam in Minnehaha County is 47 years old. The most common purpose is flood risk reduction. The tallest dam is Driftwood Dairy Sw Wwp at 31 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 |
|---|---|---|---|---|---|
| Assam | Significant | 30 | Recreation | 1968 | |
| Sioux Falls Diversion Weir | Significant | 27 | Flood Risk Reduction | 1960 | |
| Sioux Falls Diversion | Significant | 21 | Flood Risk Reduction | 1960 | |
| Driftwood Dairy Sw Wwp | Low | 31 | Other | 2020 | |
| Driftwood Dairy Nw Wwp | Low | 31 | Other | 2020 | |
| Eros Data Center Dam | Low | 31 | Water Supply | 1972 | |
| Harr Dam | Low | 28 | Recreation | 1977 | |
| Nordstrom | Low | 27 | Fire Protection, Stock, Or Small Fish Pond | 1962 | |
| Silver Creek No. 2 | Low | 27 | Flood Risk Reduction | 1963 | |
| Silver Creek No. 3 | Low | 27 | Flood Risk Reduction | 1973 | |
| Silver Creek No. 4 | Low | 26 | Flood Risk Reduction | 1963 | |
| Big Sioux River Skunk Creek | Low | 24 | Other | 2010 | |
| Silver Creek No. 6 | Low | 24 | Flood Risk Reduction | 1973 | |
| Silver Creek No. 5 | Low | 22 | Flood Risk Reduction | 1960 | |
| Silver Creek No. 1 | Low | 21 | Flood Risk Reduction | 1960 | |
| Driftwood Dairy Se Wwp | Low | 17 | Other | 2020 |