Dams in Pennington County, Minnesota
2Total Dams
0High Hazard
1Significant
Dam Safety in Pennington County, Minnesota
Pennington County has 2 dams tracked in the National Inventory of Dams. Another 1 carry a significant hazard classification.
The average dam in Pennington County is 42 years old. The most common purpose is hydroelectric. The tallest dam is Thief River Falls at 25 ft.
Explore more: Oldest dams in Minnesota · 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 |
|---|---|---|---|---|---|
| Black River Imp | Significant | Satisfactory | 14 | Flood Risk Reduction | 2022 |
| Thief River Falls | Low | Satisfactory | 25 | Hydroelectric | 1946 |