Dams in Big Stone County, Minnesota
7Total Dams
0High Hazard
1Significant
Dam Safety in Big Stone County, Minnesota
Big Stone County has 7 dams tracked in the National Inventory of Dams. Another 1 carry a significant hazard classification.
The average dam in Big Stone County is 55 years old. The most common purpose is other. The tallest dam is Ortonville 15 at 27 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 |
|---|---|---|---|---|---|
| Big Stone Lake | Significant | Satisfactory | 15 | Recreation | 1937 |
| Ortonville 15 | Low | Fair | 27 | Fire Protection, Stock, Or Small Fish Pond | |
| Steen Wma | Low | Satisfactory | 26 | Fish and Wildlife Pond | 1988 |
| Ortonville 25 | Low | Fair | 22 | Fire Protection, Stock, Or Small Fish Pond | |
| Johnson | Low | Fair | 18 | Fish and Wildlife Pond | 1990 |
| Long Tom Lake | Low | Satisfactory | 15 | Other | 1967 |
| South Rockwell Lake | Low | Fair | 12 | Other |