Minnesota Dams
1,122 dams tracked by the National Inventory of Dams
Total Dams
1,122
High Hazard
43
3.8%
Poor / Unsatisfactory
80
Average Age
61 yrs
Hazard Classification
High43 (3.8%)
Significant122 (10.9%)
Low930 (82.9%)
Condition Assessment
Satisfactory539 (48.0%)
Fair203 (18.1%)
Poor / Unsatisfactory80 (7.1%)
Not Rated300 (26.7%)
Federal
107
State
269
Local
325
Private
395
Tallest Dams
- Erie Basin 2250 ft
- Erie Basin 1200 ft
- Essar Steel Tailings Basin200 ft
- Poly Met Hrf Dam111 ft
- Canisteo No. 2 North100 ft
High Hazard Dams
Poor Condition Dams
- Rapidan Unsatisfactory
- Tetonka RidgePoor
- Lake BronsonPoor
- Pickwick MillPoor
- Schmidt PondPoor
All Dams in Minnesota
Showing 276–300 of 539
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Langhorst Pond Carlton County | 11 | 1967 | Low | Satisfactory |
| La Moyne Detention Olmsted County | 29 | 1971 | Low | Satisfactory |
| Lammi SCS Lake County | 15 | 1972 | Low | Satisfactory |
| Lake Yankton Lyon County | 8 | 1942 | Low | Satisfactory |
| Lake Shetek Outlet Murray County | 12 | 1873 | Low | Satisfactory |
| Lake Shetek Inlet Murray County | 8 | 1939 | Low | Satisfactory |
| Lake Shaokatan Lincoln County | 8 | 1917 | Low | Satisfactory |
| Lake Riley Hennepin County | 9 | 1958 | Undetermined | Satisfactory |
| Lake Ossawinnamakee Crow Wing County | 10 | 1937 | Low | Satisfactory |
| Lake Minnetonka Hennepin County | 8 | — | Low | Satisfactory |
| Lake Marshall 32 Lyon County | 32 | 2006 | Low | Satisfactory |
| Lake Marshall 30 Lyon County | 17 | — | Low | Satisfactory |
| Lake Marshall 29 Lyon County | 14 | — | Low | Satisfactory |
| Lake Koronis Meeker County | 9 | 1989 | Low | Satisfactory |
| Lake John Yellow Medicine County | 43 | 1981 | Significant | Satisfactory |
| Lake Jefferson Le Sueur County | 9 | 1938 | Low | Satisfactory |
| Lake Ida Douglas County | 8 | 1937 | Low | Satisfactory |
| Lake Grace Carver County | 40 | 1968 | Significant | Satisfactory |
| Lake Elmo Regional Park Washington County | 32 | 1981 | Low | Satisfactory |
| Lake Carlos Douglas County | 7 | 1993 | Undetermined | Satisfactory |
| Lake Calhoun Diversion Kandiyohi County | 12 | 1937 | Low | Satisfactory |
| Lake Byllesby Dakota County | 75 | 1911 | High | Satisfactory |
| Kurtz Pond Morrison County | 7 | 1971 | Low | Satisfactory |
| Krueger-Gregoire Farm Pond Lyon County | 34 | 1975 | Low | Satisfactory |
| Kremer-Leinen-Goedtke Pond Nobles County | 32 | 1977 | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.