Dams in Minnesota
1,128
Total Dams
39
High Hazard
3.46%
% High Hazard
60.6 yrs
Average Age
Counties
| County | Dams | High Hazard | % High | Avg Age |
|---|---|---|---|---|
| St. Louis | 64 | 8 | 12.50% | 66.1 yrs |
| Olmsted | 18 | 7 | 38.89% | 46.1 yrs |
| Yellow Medicine | 17 | 3 | 17.65% | 42.9 yrs |
| Crow Wing | 14 | 2 | 14.29% | 84.5 yrs |
| Dakota | 8 | 2 | 25.00% | 90.1 yrs |
| Wabasha | 17 | 1 | 5.88% | 62.6 yrs |
| Kittson | 7 | 1 | 14.29% | 63.9 yrs |
| Otter Tail | 31 | 1 | 3.23% | 85.3 yrs |
| Lake | 13 | 1 | 7.69% | 83.1 yrs |
| Benton | 3 | 1 | 33.33% | 62.3 yrs |
| Chisago | 5 | 1 | 20.00% | 79.8 yrs |
| Clay | 8 | 1 | 12.50% | 42.6 yrs |
| Redwood | 24 | 1 | 4.17% | 35.8 yrs |
| Rice | 13 | 1 | 7.69% | 66.9 yrs |
| Ramsey | 5 | 1 | 20.00% | 58.8 yrs |
| Sherburne | 14 | 1 | 7.14% | 51.7 yrs |
| Cass | 24 | 1 | 4.17% | 75.3 yrs |
| Stearns | 8 | 1 | 12.50% | 84.9 yrs |
| Traverse | 5 | 1 | 20.00% | 85.3 yrs |
| Kandiyohi | 16 | 1 | 6.25% | 79.2 yrs |
| Fillmore | 36 | 1 | 2.78% | 63.0 yrs |
| Lac qui Parle | 4 | 1 | 25.00% | 52.5 yrs |
| Mahnomen | 4 | 0 | 0.00% | 58.8 yrs |
| Todd | 14 | 0 | 0.00% | 54.4 yrs |
| Hubbard | 6 | 0 | 0.00% | 85.5 yrs |
| Norman | 14 | 0 | 0.00% | 55.4 yrs |
| Anoka | 5 | 0 | 0.00% | 97.8 yrs |
| Carver | 12 | 0 | 0.00% | 43.0 yrs |
| Winona | 23 | 0 | 0.00% | 60.0 yrs |
| Morrison | 11 | 0 | 0.00% | 69.9 yrs |
| Faribault | 5 | 0 | 0.00% | 73.3 yrs |
| Grant | 13 | 0 | 0.00% | 51.8 yrs |
| Freeborn | 11 | 0 | 0.00% | 72.5 yrs |
| Marshall | 25 | 0 | 0.00% | 62.1 yrs |
| Meeker | 4 | 0 | 0.00% | 47.8 yrs |
| Wright | 7 | 0 | 0.00% | 65.8 yrs |
| Swift | 6 | 0 | 0.00% | 60.8 yrs |
| Le Sueur | 7 | 0 | 0.00% | 56.5 yrs |
| Cottonwood | 15 | 0 | 0.00% | 50.9 yrs |
| Washington | 10 | 0 | 0.00% | 56.9 yrs |
| Houston | 25 | 0 | 0.00% | 44.3 yrs |
| Martin | 5 | 0 | 0.00% | 68.8 yrs |
| Aitkin | 20 | 0 | 0.00% | 69.1 yrs |
| Big Stone | 7 | 0 | 0.00% | 55.5 yrs |
| McLeod | 5 | 0 | 0.00% | 106.0 yrs |
| Red Lake | 8 | 0 | 0.00% | 48.8 yrs |
| Hennepin | 14 | 0 | 0.00% | 52.3 yrs |
| Sibley | 3 | 0 | 0.00% | 60.0 yrs |
| Becker | 35 | 0 | 0.00% | 73.0 yrs |
| Goodhue | 34 | 0 | 0.00% | 52.9 yrs |
| Roseau | 10 | 0 | 0.00% | 50.3 yrs |
| Jackson | 9 | 0 | 0.00% | 62.1 yrs |
| Clearwater | 10 | 0 | 0.00% | 63.1 yrs |
| Murray | 9 | 0 | 0.00% | 55.1 yrs |
| Lake of the Woods | 3 | 0 | 0.00% | 64.0 yrs |
| Dodge | 3 | 0 | 0.00% | 94.7 yrs |
| Pine | 10 | 0 | 0.00% | 66.8 yrs |
| Cook | 3 | 0 | 0.00% | 53.7 yrs |
| Waseca | 7 | 0 | 0.00% | 75.8 yrs |
| Pipestone | 5 | 0 | 0.00% | 58.0 yrs |
| Blue Earth | 8 | 0 | 0.00% | 64.3 yrs |
| Beltrami | 7 | 0 | 0.00% | 86.0 yrs |
| Pope | 14 | 0 | 0.00% | 65.9 yrs |
| Rock | 4 | 0 | 0.00% | 48.0 yrs |
| Lincoln | 27 | 0 | 0.00% | 45.8 yrs |
| Nicollet | 4 | 0 | 0.00% | 50.5 yrs |
| Brown | 5 | 0 | 0.00% | 44.0 yrs |
| Carlton | 19 | 0 | 0.00% | 69.7 yrs |
| Koochiching | 5 | 0 | 0.00% | 69.5 yrs |
| Stevens | 6 | 0 | 0.00% | 46.0 yrs |
| Isanti | 7 | 0 | 0.00% | 54.3 yrs |
| Wilkin | 4 | 0 | 0.00% | 39.7 yrs |
| Mower | 16 | 0 | 0.00% | 53.3 yrs |
| Lyon | 72 | 0 | 0.00% | 35.8 yrs |
| Polk | 18 | 0 | 0.00% | 52.6 yrs |
| Itasca | 60 | 0 | 0.00% | 61.6 yrs |
| Steele | 5 | 0 | 0.00% | 64.0 yrs |
| Chippewa | 5 | 0 | 0.00% | 64.6 yrs |
| Kanabec | 16 | 0 | 0.00% | 56.1 yrs |
| Nobles | 7 | 0 | 0.00% | 45.8 yrs |
| Douglas | 17 | 0 | 0.00% | 65.9 yrs |
| Scott | 14 | 0 | 0.00% | 58.0 yrs |
| Mille Lacs | 7 | 0 | 0.00% | 54.0 yrs |
Purpose Breakdown
Tallest Dams in Minnesota
| Dam Name | Height | County | Hazard |
|---|---|---|---|
| Erie Basin 2 | 250 ft | St. Louis | Significant Hazard |
| Erie Basin 1 | 200 ft | St. Louis | Significant Hazard |
| Essar Steel Tailings Basin | 200 ft | Itasca | Significant Hazard |
| Poly Met Hrf Dam | 111 ft | St. Louis | Significant Hazard |
| Hibbing Taconite Reclaim Pond | 100 ft | St. Louis | High Hazard |
| Hibbing Taconite Tailings Basin | 100 ft | St. Louis | High Hazard |
| Hibbing Taconite Starter No. 4 | 100 ft | St. Louis | Unknown |
| Western Hibtac | 100 ft | St. Louis | Unknown |
| Hibbing Taconite Starter No. 2 | 100 ft | St. Louis | Unknown |
| Canisteo No. 2 North | 100 ft | Itasca | Low Hazard |