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 876900 of 4,124

Dam NameHeight (ft)YearHazardCondition
Dory Dam

Union County

221985LowNot Rated
Doss Dam

Decatur County

261958LowNot Rated
Doty Dam

Dallas County

301961SignificantSatisfactory
Doty/Truesdell/Johnson Dam

Sioux County

201975LowNot Rated
Double Time Farms Dam

Union County

271992LowNot Rated
Douds Stone Dam

Wapello County

132003LowNot Rated
Dovetail Estates Dam

Johnson County

231999SignificantNot Rated
Downing Dam

Union County

251994LowNot Rated
Downing Dam

Warren County

362004LowNot Rated
Dozark Dam

Crawford County

321977LowNot Rated
Dozark Dam

Crawford County

271962LowNot Rated
Drainage District 15 North Wetland

Palo Alto County

132013LowNot Rated
Drake Dam

Adams County

332022LowNot Rated
Draper Dam

Fremont County

221963LowNot Rated
Draper Dam

Fremont County

461963LowNot Rated
Dredge Dam

Ringgold County

262013LowNot Rated
Drews Lake Dam

Dallas County

202005SignificantSatisfactory
Dtl Farms LLC Dam

Madison County

332020LowNot Rated
Duane Davis Dam

Wayne County

271991LowNot Rated
Dudley Dam

Wayne County

281989LowNot Rated
Dudycha Wrp #1

Buena Vista County

72002LowNot Rated
Dudycha Wrp #2

Buena Vista County

122002LowNot Rated
Duer Dam

Monroe County

302000LowNot Rated
Duey Dam

Monroe County

261993LowNot Rated
Duffield Dam

Davis County

301982LowNot 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.