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 951–975 of 1,122
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| South Zumbro Wr-6a Olmsted County | 56 | 1989 | High | Satisfactory |
| Speltz Detention No. 2 Winona County | 31 | 1961 | Low | Fair |
| Spike Lake Clearwater County | 8 | 1938 | Low | Fair |
| Spink Wpa Grant County | 13 | 1988 | Low | Not Rated |
| Splitrock Lake Pipestone County | 35 | 1937 | Significant | Fair |
| Spooner Group Detention Winona County | 38 | 1986 | Low | Satisfactory |
| Springdale 19 Redwood County | 26 | 2021 | Low | Fair |
| Springdale 20 Redwood County | 23 | — | Low | Satisfactory |
| Springdale 21 Redwood County | 23 | 2015 | Significant | Fair |
| Spring Grove Group Structure Houston County | 30 | 1983 | Low | Satisfactory |
| Springwater 36 Rock County | 19 | — | Low | Fair |
| Spruce Creek Douglas County | 27 | 1870 | Significant | Satisfactory |
| Stakkelhouse Lake Becker County | 11 | 1953 | Low | Fair |
| Stanchfield Lake Morrison County | 12 | 1956 | Low | Fair |
| Stang Lake Dam Otter Tail County | 26 | 1996 | Low | Fair |
| Stangler Wetland Rice County | 17 | 2001 | Low | Fair |
| 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 |
| Staples Wma Todd County | 12 | 1988 | Low | Satisfactory |
| State Ditch No. 90 Kittson County | 7 | 1970 | Low | Satisfactory |
| State Hospital Pond Nicollet County | 35 | 1970 | Significant | Satisfactory |
| State Line Lake Freeborn County | 8 | 1930 | Low | Satisfactory |
| Stately 29 Brown County | 26 | — | Low | Not Rated |
| St. Cloud Stearns County | 23 | 1972 | High | Satisfactory |
| Steen Wma Big Stone County | 26 | 1988 | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.