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 351375 of 968

Dam NameHeight (ft)YearHazardCondition
Navarino Marsh 2

Shawano County

91971LowSatisfactory
Navarino Marsh 1

Shawano County

71971LowFair
Navarino 15 Ac Flowage

Shawano County

71995LowSatisfactory
Namekagon

Bayfield County

91886HighSatisfactory
Musser

Price County

211936LowSatisfactory
Murrays

Bayfield County

131941LowFair
Murray

Price County

181880SignificantSatisfactory
Murphy

Rusk County

221994LowFair
Mullet Creek

Fond du Lac County

91971LowUnsatisfactory
Mukwonago

Waukesha County

101848LowSatisfactory
Mud Creek

Florence County

111965LowPoor
Mt Horeb

Dane County

341940HighSatisfactory
Mravik

Taylor County

111967LowFair
Moyle

Price County

101954LowFair
Mount Morris

Waushara County

201938LowNot Rated
Mott

Richland County

291971LowPoor
Mosinee

Marathon County

221910LowPoor
Morrissey

Walworth County

121949LowPoor
Moose Lake 1

Sawyer County

231897HighFair
Monterey

Waukesha County

161848LowSatisfactory
Montello Granite

Marquette County

241914HighFair
Monson Flowage

Taylor County

91962LowFair
Mondeaux Dam

Taylor County

151937SignificantNot Rated
Monches

Waukesha County

141844LowFair
Mlsna

Vernon County

351956HighUnsatisfactory
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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.