Wisconsin Dams
968 dams tracked by the National Inventory of Dams
Total Dams
968
High Hazard
180
18.6%
Poor / Unsatisfactory
63
Average Age
89 yrs
Hazard Classification
High180 (18.6%)
Significant84 (8.7%)
Low704 (72.7%)
Condition Assessment
Satisfactory239 (24.7%)
Fair509 (52.6%)
Poor / Unsatisfactory63 (6.5%)
Not Rated157 (16.2%)
Federal
65
State
127
Local
407
Private
280
Tallest Dams
- Superior Falls138 ft
- Eau Galle Dam127 ft
- Flambeau 92 ft
- Hatfield 92 ft
- Plum Creek 288 ft
High Hazard Dams
- Eau Galle DamHigh
- Flambeau High
- Hatfield High
- Plum Creek 2High
- High Falls High
Poor Condition Dams
- West Fork Kickapoo 1Unsatisfactory
- DoyleUnsatisfactory
- Coon Creek 21Unsatisfactory
- Rock FallsPoor
- Garden Valley 10Unsatisfactory
All Dams in Wisconsin
Showing 101–125 of 239
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Merrill Lincoln County | 23 | 1913 | Low | Satisfactory |
| Mendota Locks Dane County | 16 | 1849 | High | Satisfactory |
| Meinhardt Richland County | 25 | 1968 | High | Satisfactory |
| Mcmillan Marsh Marathon County | 11 | 1971 | Low | Satisfactory |
| Mcdill Portage County | 21 | 1855 | Significant | Satisfactory |
| May Coulee Jackson County | 22 | 1976 | Low | Satisfactory |
| Mauston Juneau County | 14 | 1919 | Low | Satisfactory |
| Marion Waupaca County | 17 | 1880 | High | Satisfactory |
| Magruder Sauk County | 29 | 1970 | Low | Satisfactory |
| Lower Watertown Dam Jefferson County | 13 | 1904 | Low | Satisfactory |
| Lower Power St. Croix County | 22 | 1866 | Low | Satisfactory |
| Lower Nine Mile Oneida County | 12 | 1907 | Low | Satisfactory |
| Lower May Coulee Jackson County | 23 | 2011 | Low | Satisfactory |
| Lower Eau Claire Lake Douglas County | 12 | 1938 | Low | Satisfactory |
| Lowell Dodge County | 16 | 1905 | Low | Satisfactory |
| Lourie Crawford County | 29 | 1973 | Low | Satisfactory |
| Long-On-Deerskin Vilas County | 10 | 1908 | Low | Satisfactory |
| Little Tamarack Flowage Vilas County | 10 | — | Low | Satisfactory |
| Little St Germain Vilas County | 9 | 1908 | Low | Satisfactory |
| Little Rice River Oneida County | 15 | 1961 | Low | Satisfactory |
| Little Rice Lake Forest County | 8 | 1936 | Low | Satisfactory |
| Little Quinnesec Falls Marinette County | 67 | 1900 | High | Satisfactory |
| Little Muskego Waukesha County | 12 | 1972 | High | Satisfactory |
| Little Green Lake Outlet Green Lake County | 11 | 1934 | Low | Satisfactory |
| Lindow Florence County | 22 | 1972 | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.