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 701725 of 4,124

Dam NameHeight (ft)YearHazardCondition
Crystal Lake Dam

Clinton County

241900LowNot Rated
Crystal Lake Sediment Control Dam

Hancock County

272003LowSatisfactory
Cubbage Dam

Jefferson County

322000LowNot Rated
Cuddeback Dam

Washington County

291996LowNot Rated
Cummings Farm Dam

Marion County

272002LowNot Rated
Cummins Dam

Adair County

331999LowNot Rated
Cunard Dam

Harrison County

292011LowNot Rated
Cunningham Ranch Dam

Madison County

381989LowNot Rated
Curry Dam

Montgomery County

252005LowNot Rated
Curtis Dam

Scott County

282004LowNot Rated
Cutler Dam

Polk County

321940LowNot Rated
Cutler Dam

Worth County

71999LowNot Rated
C & W Investments

Appanoose County

311985LowNot Rated
Cynthia Schlapia Dam

Ringgold County

362016LowNot Rated
Dakins Lake Dam

Story County

402014SignificantFair
Dakins Lake Dam (Original Dam)

Story County

241951LowNot Rated
Dalton Dam

Taylor County

271988LowNot Rated
Dalton Dam

Taylor County

271984LowNot Rated
Daly Dam

Monona County

421985LowNot Rated
Dammann Dam

Page County

242023LowNot Rated
Dane Ridge Watershed Site A

Crawford County

521977LowNot Rated
Dane Ridge Watershed Site A-1

Crawford County

431967LowNot Rated
Dane Ridge Watershed Site B-1

Crawford County

361971LowNot Rated
Dane Ridge Watershed Site B-2

Crawford County

421971LowNot Rated
Dane Ridge Watershed Site B-3

Crawford County

441971LowNot 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.