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 25012525 of 3,759

Dam NameHeight (ft)YearHazardCondition
Promise City Reservoir Dam

Wayne County

251900LowNot Rated
Provost Bay Dam

Sac County

10LowNot Rated
Putnam Dam

Davis County

331978LowNot Rated
Putz Dam

Warren County

321977LowNot Rated
Putz Dam

Warren County

271966LowNot Rated
Q Pond Park Dam

Clarke County

341900LowNot Rated
Quad Valley Subwatershed Site 1-2

Ida County

371967LowNot Rated
Quad Valley Subwatershed Site 1-3

Ida County

291967LowNot Rated
Quad Valley Subwatershed Site 1d-1

Ida County

361967LowNot Rated
Quasqueton Dam

Buchanan County

71932LowNot Rated
Quastad Dam

Emmet County

351975LowNot Rated
Queck Dam

Madison County

292001LowNot Rated
Raber Dam

Guthrie County

371962LowNot Rated
Rager Dam

Harrison County

582011LowNot Rated
Rainbow Lake Dam

Tama County

301952LowNot Rated
Ralston Subwatershed Site 1-2

Woodbury County

361969LowNot Rated
Ralston Subwatershed Site 2-2

Cherokee County

431969LowNot Rated
Ralston Subwatershed Site 5-2

Cherokee County

241969LowNot Rated
Ralston Subwatershed Site M-2

Cherokee County

271969LowNot Rated
Ramsbottom Dam

Adair County

221964LowNot Rated
Ramsey Dam

Harrison County

432000LowNot Rated
Randall Dam

Lucas County

301982LowNot Rated
Randall Dam

Johnson County

311976LowNot Rated
Randolph Dam

Van Buren County

302000LowNot Rated
Randy Grgurich Dam

Lucas County

282014LowNot 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.