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 326–350 of 539
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| I-94 Rest Area Washington County | 30 | 1985 | Low | Satisfactory |
| Hutchinson McLeod County | 15 | 1857 | Significant | Satisfactory |
| Hunner Tailings Itasca County | 25 | 1956 | Low | Satisfactory |
| Hull Mower County | 16 | — | Low | Satisfactory |
| Hubbel Pond Becker County | 14 | 1933 | Low | Satisfactory |
| Horning-Festler Detention Rice County | 26 | 1977 | Significant | Satisfactory |
| Horihan-Herrick Fillmore County | 36 | 1991 | Low | Satisfactory |
| Horihan-Hazel Group Fillmore County | 32 | 1978 | Significant | Satisfactory |
| Hoot Lake Otter Tail County | 10 | 1913 | Low | Satisfactory |
| Homer 13 Winona County | 27 | 1988 | Significant | Satisfactory |
| Holman Tailings Basin Itasca County | 45 | — | Significant | Satisfactory |
| Holman Clear Water Pond Itasca County | 49 | 2012 | Low | Satisfactory |
| Hogan F Pond Redwood County | 20 | 1978 | Low | Satisfactory |
| Hjermstad Slough Wma Murray County | 8 | 2008 | Low | Satisfactory |
| Hill River Lake Polk County | 8 | 1950 | Low | Satisfactory |
| Hill Lake Aitkin County | 10 | 1937 | Low | Satisfactory |
| Hill Annex No. 3 (South) Itasca County | 65 | 1920 | Low | Satisfactory |
| Hilgenberg Pond Scott County | 22 | 1976 | Significant | Satisfactory |
| Highway 14 Detention Lyon County | 26 | 1999 | Low | Satisfactory |
| Highwater Ethanol Redwood County | 12 | 2015 | Low | Satisfactory |
| Hickson Clay County | 10 | — | Low | Satisfactory |
| Herwig Pond Kanabec County | 16 | 1967 | Low | Satisfactory |
| Heron Lake Outlet Jackson County | 10 | 1937 | Low | Satisfactory |
| Henry Neuman Detention Winona County | 26 | 1982 | Low | Satisfactory |
| Henricks Pond Goodhue County | 26 | 1958 | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.