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 101125 of 4,124

Dam NameHeight (ft)YearHazardCondition
Wilkinson Dam

Poweshiek County

292005LowNot Rated
Wilkinson Dam

Poweshiek County

271981LowNot Rated
Wilhelmi Dam

Dallas County

302002LowNot Rated
Wiley Dam

Warren County

251964LowNot Rated
Wildwood Hill Dam

Madison County

261961LowNot Rated
Wildlands For The Future Dam

Monroe County

141991LowNot Rated
Wildland For The Future Dam

Monroe County

131995LowNot Rated
Wiechmann/Rooks Dam

Hardin County

351968LowNot Rated
Wickman Dam

Cass County

232004LowNot Rated
Wickenkamp Dam

Jasper County

301970LowNot Rated
Wickard Dam

Polk County

251964LowNot Rated
Whittenberg Dam

Marion County

281960LowNot Rated
White Oak Lake Dam

Mahaska County

391983SignificantSatisfactory
Whitehall Dam

Fremont County

271987LowNot Rated
White Dam

Davis County

281974LowNot Rated
White Dam

Marion County

351974LowNot Rated
White Dam

Buena Vista County

92022LowNot Rated
White Dam

Winneshiek County

242003LowNot Rated
White Dam

Davis County

251961LowNot Rated
White Dam

Dubuque County

372007LowNot Rated
White Dam

Taylor County

341975LowNot Rated
White Dam

Des Moines County

401988LowNot Rated
Whispering Pines Dam

Audubon County

301971LowNot Rated
Whispering Pines Dam

Muscatine County

282006SignificantFair
Whiskey Hollow Watershed - Lewis Site

Louisa County

331986LowNot 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.