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 776–800 of 1,122
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Poly Met Hrf Dam St. Louis County | 111 | — | Significant | Not Rated |
| Polymet-Ltv St. Louis County | 69 | 1981 | Significant | Satisfactory |
| Pomme De Terre Grant County | 10 | 1936 | Low | Satisfactory |
| Pool No. 1 Marshall County | 11 | 1967 | Low | Not Rated |
| Pool No. 10 Marshall County | 9 | 1946 | Low | Not Rated |
| Pool No. 11 Marshall County | 8 | 1938 | Low | Not Rated |
| Pool No. 14 Marshall County | 9 | 1960 | Low | Not Rated |
| Pool No. 15 Marshall County | 8 | 1960 | Low | Not Rated |
| Pool No. 19 Marshall County | 11 | 1962 | Low | Not Rated |
| Pool No. 20 Marshall County | 8 | 1946 | Low | Not Rated |
| Pool No. 21 Marshall County | 8 | 1971 | Low | Not Rated |
| Pool No. 22 Marshall County | 8 | 1946 | Low | Not Rated |
| Pool No. 23 Marshall County | 8 | 1946 | Low | Not Rated |
| Pool No. 24 Marshall County | 8 | 1946 | Low | Not Rated |
| Pool No. 25 Marshall County | 7 | 1946 | Low | Not Rated |
| Pool No. 27 Marshall County | 16 | 1938 | Low | Not Rated |
| Pool No. 3 Marshall County | 9 | 1946 | Low | Not Rated |
| Pool No. 7 Marshall County | 8 | 1954 | Low | Not Rated |
| Pool No. 8 Marshall County | 13 | 1980 | Low | Not Rated |
| Portage Lake Hubbard County | 12 | 1938 | Low | Satisfactory |
| Post Group Detention Murray County | 39 | 1974 | Low | Fair |
| Potato Lake Hubbard County | 9 | 1939 | Low | Satisfactory |
| Prairie Lake Otter Tail County | 12 | 1936 | Low | Not Rated |
| Prairie Portage | 13 | 1975 | Low | Not Rated |
| Prairie River Itasca County | 35 | 1920 | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.