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 726–750 of 1,122
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Hill Lake Aitkin County | 10 | 1937 | Low | Satisfactory |
| Hill Annex No. 3 (South) Itasca County | 65 | 1920 | Low | Satisfactory |
| Hill Annex No. 1 (North) Itasca County | 63 | 1954 | Low | Fair |
| Hilgenberg Pond Scott County | 22 | 1976 | Significant | Satisfactory |
| Highway 75 Dam Lac qui Parle County | 32 | 1974 | Low | Not Available |
| Highway 14 Detention Lyon County | 26 | 1999 | Low | Satisfactory |
| Highwater Ethanol Redwood County | 12 | 2015 | Low | Satisfactory |
| Highland Creek Cass County | 11 | 1970 | Low | Not Rated |
| Hickson Clay County | 10 | — | Low | Satisfactory |
| Hibbing Taconite Tailings Basin St. Louis County | 100 | — | High | Not Rated |
| Hibbing Taconite Starter No. 4 St. Louis County | 100 | — | Undetermined | Not Rated |
| Hibbing Taconite Starter No. 2 St. Louis County | 100 | 1975 | Undetermined | Not Rated |
| Hibbing Taconite Reclaim Pond St. Louis County | 100 | — | High | Not Rated |
| Hesse F Pond Carver County | 11 | 1970 | Low | Not Rated |
| Herwig Pond Kanabec County | 16 | 1967 | Low | Satisfactory |
| Heron Lake Outlet Jackson County | 10 | 1937 | Low | Satisfactory |
| Herlein-Boote Wma Nobles County | 19 | 2014 | Low | Not Rated |
| Henry Pond Scott County | 15 | 1976 | Low | Not Rated |
| Henry Neuman Detention Winona County | 26 | 1982 | Low | Satisfactory |
| Henricks Pond Goodhue County | 26 | 1958 | Low | Satisfactory |
| Henrichs Wetland Stevens County | 8 | 2000 | Low | Fair |
| Height of Land Lake Becker County | 12 | 1938 | Low | Satisfactory |
| Hegbert 13 Swift County | 20 | — | Low | Satisfactory |
| Headquarters Mille Lacs County | 8 | — | Low | Satisfactory |
| Hayes Lake Roseau County | 39 | 1973 | Significant | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.