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

High Hazard Dams

Poor Condition Dams

All Dams in Wisconsin

Showing 5175 of 180

Dam NameHeight (ft)YearHazardCondition
Flambeau

Rusk County

921951HighSatisfactory
Galesville Mill

Trempealeau County

251867HighFair
G E Harris

Ozaukee County

151967HighFair
Gile

Iron County

301941HighFair
Glen Hills 10

St. Croix County

641970HighSatisfactory
Glen Hills 4

St. Croix County

321966HighSatisfactory
Glen Hills 5

St. Croix County

301966HighSatisfactory
Glen Hills 6

St. Croix County

301975HighSatisfactory
Glen Hills 7

St. Croix County

341973HighSatisfactory
Glen Loch

Chippewa County

371875HighNot Rated
Grandfather Falls

Lincoln County

321906HighSatisfactory
Grandmother

Lincoln County

391923HighFair
Harrisville

Marquette County

151853HighSatisfactory
Hatfield

Jackson County

921908HighFair
Hat Rapids

Oneida County

301923HighSatisfactory
Herbeck

Vernon County

301967HighFair
High Falls

Marinette County

831910HighSatisfactory
Hillsboro

Vernon County

251854HighSatisfactory
Holcombe Dike

Chippewa County

401907HighSatisfactory
Hortonville

Outagamie County

181915HighSatisfactory
Independence

Trempealeau County

231877HighFair
Jersey

Lincoln County

341929HighSatisfactory
Jim Falls

Chippewa County

551923HighSatisfactory
Jobes

Price County

161934HighSatisfactory
Johnson Falls

Marinette County

431923HighSatisfactory
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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.