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 326–350 of 509
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| High Hopes Taylor County | 20 | 1973 | Low | Fair |
| Hidden Valley Lake Lafayette County | 35 | 1975 | Low | Fair |
| Hidden Lakes Waukesha County | 20 | 1967 | Low | Fair |
| Hickory Lake Racine County | 20 | — | Significant | Fair |
| Herbeck Vernon County | 30 | 1967 | High | Fair |
| Hemlock Sauk County | 11 | 1964 | Low | Fair |
| Hayward Sawyer County | 20 | 1925 | Low | Fair |
| Hayton Calumet County | 14 | 1908 | Low | Fair |
| Hay Creek Iron County | 8 | 1960 | Low | Fair |
| Hatfield Jackson County | 92 | 1908 | High | Fair |
| Hatchery Marinette County | 12 | 1890 | Low | Fair |
| Hartford Washington County | 14 | 1844 | Low | Fair |
| Harrison Lincoln County | 12 | 1939 | Low | Fair |
| Hansons Chippewa County | 16 | 1870 | Low | Fair |
| Hanson Iron County | 23 | 1972 | Low | Fair |
| Hancock Lake Oneida County | 11 | 1930 | Low | Fair |
| Halls Creek Wildlife Flowage Florence County | 15 | 1978 | Low | Fair |
| Half Moon Lake Eau Claire County | 16 | 1977 | Low | Fair |
| Haldeman Monroe County | 28 | 1971 | Low | Fair |
| Guidera Polk County | 20 | — | Low | Fair |
| Grosse Marinette County | 18 | 1970 | Low | Fair |
| Grethe Walworth County | 14 | 1969 | Low | Fair |
| Grand River Marsh Marquette County | 16 | 1969 | Low | Fair |
| Grandmother Lincoln County | 39 | 1923 | High | Fair |
| Grafton Ozaukee County | 20 | 1918 | Significant | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.