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 801–825 of 930
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| State Ditch No. 90 Kittson County | 7 | 1970 | Low | Satisfactory |
| State Line Lake Freeborn County | 8 | 1930 | Low | Satisfactory |
| Stately 29 Brown County | 26 | — | Low | Not Rated |
| Steen Wma Big Stone County | 26 | 1988 | Low | Satisfactory |
| Sterle Pool Carlton County | 20 | 1990 | Low | Satisfactory |
| Stevens Cd 16 Stevens County | 19 | — | Low | Not Rated |
| Stinking Lake Becker County | 29 | 1992 | Low | Satisfactory |
| St. Johns University Stearns County | 9 | 1988 | Low | Fair |
| St. Louis River St. Louis County | 28 | 1963 | Low | Not Rated |
| Stoerzinger Pond No. 1 Todd County | 15 | 1967 | Low | Fair |
| Stoerzinger Pond No. 2 Todd County | 14 | 1968 | Low | Fair |
| St. Olaf Lake Waseca County | 7 | 1940 | Low | Fair |
| Stone Lake Meeker County | 10 | 1999 | Low | Satisfactory |
| Storden 2 Cottonwood County | 25 | — | Low | Poor |
| Straight Lake Becker County | 20 | 1942 | Low | Satisfactory |
| Strommen Dam Norman County | 33 | 1986 | Low | Fair |
| Sturgeon Lake St. Louis County | 8 | 1936 | Low | Fair |
| Sugar Lake Cass County | 8 | 1967 | Low | Not Rated |
| Sugar Lake Impoundment Itasca County | 14 | 1980 | Low | Not Rated |
| Sullivan Lake Lake County | 8 | 1900 | Low | Not Rated |
| Sumner 25 Fillmore County | 24 | 1972 | Low | Not Rated |
| Sunny Hill-Lower Norman County | 24 | 1974 | Low | Satisfactory |
| Sunny Hill-Upper Norman County | 21 | 1974 | Low | Satisfactory |
| Sunrise River Chisago County | 18 | 1885 | Low | Satisfactory |
| Sunrise River Pool 1 Chisago County | 15 | 1964 | Low | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.