Dams in Olmsted County, Minnesota
18Total Dams
7High Hazard
2Significant
Dam Safety in Olmsted County, Minnesota
Olmsted County has 18 dams tracked in the National Inventory of Dams. Of these, 7 are classified as high hazard — meaning failure would probably cause loss of human life. Another 2 carry a significant hazard classification.
The average dam in Olmsted County is 46 years old. The most common purpose is flood risk reduction. The tallest dam is South Zumbro Br-1 at 75 ft.
Explore more: Oldest dams in Minnesota · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| South Zumbro Br-1 | High | Satisfactory | 75 | Flood Risk Reduction | 1991 |
| South Zumbro Wr-6a | High | Satisfactory | 56 | Flood Risk Reduction | 1989 |
| South Zumbro Sr-2 | High | Satisfactory | 50 | Flood Risk Reduction | 1992 |
| South Zumbro Wr-4 | High | Satisfactory | 46 | Flood Risk Reduction | 1988 |
| South Zumbro Kr-6 | High | Satisfactory | 37 | Flood Risk Reduction | 1993 |
| South Zumbro Kr-7 | High | Satisfactory | 35 | Flood Risk Reduction | 1994 |
| South Zumbro Kr-3 | High | Satisfactory | 30 | Flood Risk Reduction | 1993 |
| Silver Lake | Significant | Satisfactory | 30 | Recreation | 1935 |
| Rochester 50th Ave Nw | Significant | Satisfactory | 28 | Flood Risk Reduction | 2007 |
| Elmira-1 | Low | Fair | 39 | Flood Risk Reduction | |
| Lake Zumbro Cdf | Low | 37 | Other | 2019 | |
| Olmsted County Rd 10 | Low | Satisfactory | 37 | Flood Risk Reduction | 1978 |
| Hoehne Bros. Pond | Low | Fair | 35 | Flood Risk Reduction | 1973 |
| Simonson Detention | Low | Fair | 29 | Flood Risk Reduction | 1967 |
| La Moyne Detention | Low | Satisfactory | 29 | Flood Risk Reduction | 1971 |
| Dresser Valley Watershed | Low | 26 | Flood Risk Reduction | 1967 | |
| Glen Herman Stabilizer | Low | Fair | 26 | Flood Risk Reduction | 1982 |
| Mayowood Lake | Low | Satisfactory | 25 | Other | 1920 |