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 501525 of 3,759

Dam NameHeight (ft)YearHazardCondition
Clark Dam

Crawford County

282004LowNot Rated
Clark Dam

Iowa County

222023LowNot Rated
Clark Dam

Decatur County

321988LowNot Rated
Clarke Co. Roadgrade Dam 8-73-25

Clarke County

431992LowNot Rated
Clarks Lake Dam

Jasper County

231962LowNot Rated
Clark Subwatershd Sta22+82 Main Gully

Cherokee County

291956LowNot Rated
Clark Subwatershed Gully 7 Sta70+00

Cherokee County

371956LowNot Rated
Clausen Dam

Clinton County

291975LowNot Rated
Clements Dam

Polk County

261964LowNot Rated
Clermont Milldam

Fayette County

161925LowNot Rated
Cleveland Dam

Harrison County

412011LowNot Rated
Clevenger Dam

Warren County

302000LowNot Rated
Clint Means Dam

Taylor County

332021LowNot Rated
Clinton Dam

Crawford County

222008LowNot Rated
Cloud Dam

Monona County

321995LowNot Rated
Clubine Dam

Monona County

422003LowNot Rated
Clyde Frizell

Adair County

262009LowNot Rated
Clymer Dam

Jones County

201997LowNot Rated
Coberly/Butler Dam

Monona County

451968LowNot Rated
Coberly Dam

Monona County

431970LowNot Rated
Coberly/Swenson Dam

Monona County

401964LowNot Rated
Coffman Dam

Tama County

261965LowNot Rated
Cohrs Dam

Harrison County

362011LowNot Rated
Colby Dam

Polk County

261968LowNot Rated
Cold Springs Dam

Cass County

121949LowNot 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.