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 626–650 of 1,122
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Mesabi Chief Tailings 3 Itasca County | 24 | 1960 | Low | Satisfactory |
| Middle Lake Nicollet County | 7 | 1946 | Low | Satisfactory |
| Mill Creek Stearns County | 13 | 1870 | Low | Satisfactory |
| Mille Lacs Mille Lacs County | 8 | 2015 | Low | Satisfactory |
| Miller Estate Farm Pond Lincoln County | 22 | 1975 | Significant | Satisfactory |
| Miller Estate Farm Pond West Lincoln County | 26 | 1984 | Low | Satisfactory |
| Miller F Red Lake County | 25 | 1976 | Low | Satisfactory |
| Miller Lange Pond Fillmore County | 26 | 1973 | Low | Satisfactory |
| Millerville Douglas County | 10 | 2012 | Low | Satisfactory |
| Minett-Kranz Detention Pipestone County | 33 | 1988 | Low | Satisfactory |
| Minnesota Lake Faribault County | 8 | 1997 | Low | Satisfactory |
| Minntac Tailings St. Louis County | 50 | 1978 | Low | Not Rated |
| Minorca Pit South St. Louis County | 30 | 2008 | Significant | Satisfactory |
| Mississippi River Lock and Dam 2 Dakota County | 42 | 1931 | Significant | Not Available |
| Mississippi River Lock and Dam 3 Goodhue County | 44 | 1938 | Significant | Not Available |
| Mississippi River Lock and Dam 5 Buffalo County | 43 | 1935 | Significant | Not Available |
| Mississippi River Lock and Dam 5a Winona County | 46 | 1936 | Significant | Not Available |
| Mississippi River Lock and Dam 7 La Crosse County | 41 | 1937 | Significant | Not Available |
| Mississippi River Locks and Dam 1 Hennepin County | 56 | 1917 | Significant | Not Available |
| Mlo Partnership Winona County | 32 | 1986 | Low | Satisfactory |
| Mn River Pool 7 Dikes 1 & 2 Lac qui Parle County | 8 | 2006 | Low | Not Rated |
| Moccasin Creek Project No. 8 Norman County | 49 | 1984 | Significant | Satisfactory |
| Moehrke SCS Carlton County | 23 | 1977 | Low | Poor |
| Monroe 13 Lyon County | 21 | — | Low | Fair |
| Monroe 3 Lyon County | 37 | 2007 | Low | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.