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 13011325 of 4,124

Dam NameHeight (ft)YearHazardCondition
Reed Dam

Washington County

301968LowNot Rated
Reed Dam

Clarke County

391999LowNot Rated
Reed Dam

Washington County

371970LowNot Rated
Red Rock Dam - Southeast Des Moines and Southwest Pleasant Hill Remedial Works

Warren County

181968HighNot Available
Red Haw Dam

Lucas County

431934HighFair
Redfield Dam

Dallas County

91913LowNot Rated
Redding Dam

Warren County

261964LowNot Rated
Reames Dam

Madison County

361966LowNot Rated
Readhead Dam

Story County

341997LowNot Rated
Rath Dam

Crawford County

361977LowNot Rated
Rath Dam

Crawford County

322004LowNot Rated
Rathbun Farms Dam

Wayne County

291986LowNot Rated
Rathbun Dam

Appanoose County

1001969HighNot Available
Rastetter Dam

Davis County

171997LowNot Rated
Rasmussen Dam

Polk County

312006LowNot Rated
Rasmussen Dam

Madison County

332020LowNot Rated
Rasmussen Dam

Story County

281964LowNot Rated
Rasmussen Dam

Warren County

281962LowNot Rated
Rankins Brothers Dam

Jasper County

291976SignificantNot Rated
Randy Grgurich Dam

Lucas County

282014LowNot Rated
Randolph Dam

Van Buren County

302000LowNot Rated
Randall Dam

Johnson County

311976LowNot Rated
Randall Dam

Lucas County

301982LowNot Rated
Ramsey Dam

Harrison County

432000LowNot Rated
Ramsbottom Dam

Adair County

221964LowNot 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.