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 701–725 of 930
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Rock 33 Pipestone County | 30 | — | Low | Not Rated |
| Rock Lake 15 Lyon County | 13 | 1988 | Low | Fair |
| Rockwell Norman County | 31 | 1974 | Low | Satisfactory |
| Roiger Detention Brown County | 32 | 1986 | Low | Not Rated |
| Roosevelt Lake Crow Wing County | 8 | 1936 | Low | Fair |
| Roseau Roseau County | 9 | 1930 | Low | Not Rated |
| Roseau Lake Roseau County | 12 | 2023 | Low | Not Rated |
| Roseau River Lake of the Woods County | 10 | 1932 | Low | Satisfactory |
| Roseau River Wma Pool 1 Roseau County | 12 | 1950 | Low | Fair |
| Roseau River Wma Pool 2 Roseau County | 10 | 1950 | Low | Fair |
| Roseau River Wma Pool 3 Roseau County | 13 | 1950 | Low | Fair |
| Rose Lake Otter Tail County | 12 | 1937 | Low | Satisfactory |
| Round Grove Lake McLeod County | 10 | 1921 | Low | Not Rated |
| Round Lake Ramsey County | 10 | 1960 | Low | Fair |
| Round Lake Becker County | 14 | 1938 | Low | Satisfactory |
| Ruen Detention Group Fillmore County | 32 | 1966 | Low | Fair |
| Ruen Pond Fillmore County | 29 | 1970 | Low | Fair |
| Ruff-Nik Wma-North Pool Todd County | 8 | 1983 | Low | Satisfactory |
| Rum River Anoka County | 28 | 1853 | Low | Satisfactory |
| Runestone Park Wetland Douglas County | 9 | 1995 | Low | Satisfactory |
| Runholt-Mellenthin Lyon County | 18 | 1958 | Low | Satisfactory |
| Rusch Pond Goodhue County | 28 | 1967 | Low | Satisfactory |
| Rush Lake Otter Tail County | 8 | 1937 | Low | Satisfactory |
| Ryan-Lindell Goodhue County | 32 | 1984 | Low | Poor |
| Sanborn Lake Le Sueur County | 10 | — | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.