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 601–625 of 1,122
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| 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 Osakis 1 Todd County | 8 | 1938 | Low | Fair |
| Lake Okabena Nobles County | 12 | 1941 | Low | Fair |
| Lake Minnetonka Hennepin County | 8 | — | Low | Satisfactory |
| Lake Miltona Douglas County | 8 | 1937 | Low | Fair |
| Lake Marshall 33 Lyon County | 17 | 1991 | Low | Fair |
| 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 Marion McLeod County | 10 | 1948 | Low | Not Rated |
| Lake Louise Mower County | 12 | 1900 | Low | Fair |
| Lake Linka No. 1 Pope County | 32 | 1972 | Low | Fair |
| 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 Hattie Cass County | 10 | 1937 | Low | Not Rated |
| Lake Grace Carver County | 40 | 1968 | Significant | Satisfactory |
| Lake Geneva Douglas County | 8 | 1936 | Low | Not Rated |
| Lake Frank Swift County | 10 | 1975 | Low | Fair |
| Lake Emily Diversion Pope County | 7 | 1937 | Low | Fair |
| Lake Emily Le Sueur County | 9 | 1939 | Low | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.