Iowa Dams

4,124 dams tracked by the National Inventory of Dams

Total Dams

4,124

High Hazard

91

2.2%

Poor / Unsatisfactory

25

Average Age

46 yrs

Hazard Classification

High91 (2.2%)
Significant274 (6.6%)
Low3,759 (91.1%)

Condition Assessment

Satisfactory259 (6.3%)
Fair81 (2.0%)
Poor / Unsatisfactory25 (0.6%)
Not Rated3,759 (91.1%)

Federal

25

State

141

Local

1,938

Private

2,014

All Dams in Iowa

Showing 36513675 of 3,759

Dam NameHeight (ft)YearHazardCondition
White Dam

Winneshiek County

242003LowNot Rated
Whitehall Dam

Fremont County

271987LowNot Rated
Whittenberg Dam

Marion County

281960LowNot Rated
Wickard Dam

Polk County

251964LowNot Rated
Wickenkamp Dam

Jasper County

301970LowNot Rated
Wickman Dam

Cass County

232004LowNot Rated
Wiechmann/Rooks Dam

Hardin County

351968LowNot Rated
Wildland For The Future Dam

Monroe County

131995LowNot Rated
Wildlands For The Future Dam

Monroe County

141991LowNot Rated
Wildwood Hill Dam

Madison County

261961LowNot Rated
Wiley Dam

Warren County

251964LowNot Rated
Wilhelmi Dam

Dallas County

302002LowNot Rated
Wilkinson Dam

Poweshiek County

292005LowNot Rated
Wilkinson Dam

Poweshiek County

271981LowNot Rated
William Ory Dam

Madison County

312018LowNot Rated
Williams Dam

Page County

401966LowNot Rated
Williams Dam

Clarke County

342010LowNot Rated
Williams Dam

Page County

371969LowNot Rated
Williams Dam

Plymouth County

351962LowNot Rated
Williams Dam

Pottawattamie County

211994LowNot Rated
Williams Dam

Montgomery County

352006LowNot Rated
Williams Dam

Lee County

291977LowNot Rated
Williams Dam

Adair County

302003LowNot Rated
Williams Dam

Davis County

322000LowNot Rated
Williamson Dam

Appanoose County

271987LowNot Rated
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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.