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 101–122 of 122
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Silver Lake Olmsted County | 30 | 1935 | Significant | Satisfactory |
| Sonstegard-Telste Lyon County | 46 | 1983 | Significant | Satisfactory |
| Splitrock Lake Pipestone County | 35 | 1937 | Significant | Fair |
| Springdale 21 Redwood County | 23 | 2015 | Significant | Fair |
| Spruce Creek Douglas County | 27 | 1870 | Significant | Satisfactory |
| St. Anthony Falls Lower Lock and Dam Hennepin County | 58 | 1956 | Significant | Not Available |
| St. Anthony Falls Upper Lock and Dam Hennepin County | 93 | 1963 | Significant | Not Available |
| State Hospital Pond Nicollet County | 35 | 1970 | Significant | Satisfactory |
| Thorson Group North Houston County | 30 | 1963 | Significant | Poor |
| Thorson Group West Houston County | 31 | 1963 | Significant | Poor |
| Upland Cell Ii Interior St. Louis County | 60 | 2011 | Significant | Not Rated |
| Walnut Grove Redwood County | 57 | 1979 | Significant | Satisfactory |
| Warren Diversion Marshall County | 30 | 2003 | Significant | Fair |
| Warren Storage Marshall County | 30 | 2002 | Significant | Satisfactory |
| Warren Twp Road Winona County | 21 | 1975 | Significant | Satisfactory |
| Watopa Township No. 1 Wabasha County | 34 | 1976 | Significant | Fair |
| West Hill Mine Pit Koochiching County | 18 | — | Significant | Poor |
| West Two River St. Louis County | 40 | 1966 | Significant | Satisfactory |
| Whitewater Reservoir St. Louis County | 40 | 1954 | Significant | Satisfactory |
| Whitewater Reservoir Saddle Dam St. Louis County | 36 | 1954 | Significant | Satisfactory |
| Winnibigoshish Dam Cass County | 23 | 1884 | Significant | Not Available |
| Woodbury Hudson Rd Washington County | 16 | 2004 | Significant | Satisfactory |
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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.