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 551575 of 3,759

Dam NameHeight (ft)YearHazardCondition
Cord Subwatershed M-5571

Woodbury County

361957LowNot Rated
Cord Subwatershed M-7234

Woodbury County

411957LowNot Rated
Corey Family Farms Dam

Calhoun County

332004LowNot Rated
Corpman Dam

Washington County

282024LowNot Rated
Corrigan Dam

Warren County

282005LowNot Rated
Cottonwood-Green Valley Subws 50+40 #2

Monona County

381966LowNot Rated
Cottonwood-Green Valley Subws 75+70 #2

Monona County

261966LowNot Rated
Cottonwood-Green Valley Subws 99+50 #2

Monona County

261966LowNot Rated
Cottonwood-Green Valley Subws Sta 14+10

Monona County

321966LowNot Rated
Courcier Dam

Montgomery County

301971LowNot Rated
Courtney Dam

Boone County

291966LowNot Rated
Cowles Dam

Decatur County

311991LowNot Rated
Cowles Dam

Monroe County

251989LowNot Rated
Cozad Dam

Adair County

241989LowNot Rated
Cozad Dam

Clarke County

271994LowNot Rated
Cozad Dam

Clarke County

361959LowNot Rated
Crain Dam

Ringgold County

272006LowNot Rated
Crall Dam

Monroe County

281991LowNot Rated
Cramer Dam

Madison County

321985LowNot Rated
Cramer Farms Dam

Union County

311976LowNot Rated
Crane Dam

Davis County

292000LowNot Rated
Crane Dam

Davis County

291995LowNot Rated
Cranston Brothers Dam

Ida County

321977LowNot Rated
Crawford CO Roadgrade Dam 34-84-39

Crawford County

412002LowNot Rated
Crawford County Roadgrade Dam 27-83-38

Crawford County

392000LowNot 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.