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 5175 of 3,759

Dam NameHeight (ft)YearHazardCondition
Anderzhon Dam

Fremont County

331966LowNot Rated
Andresen/Coberly Dam

Monona County

601977LowNot Rated
Andrew Dam

Decatur County

301983LowNot Rated
Andriano Dam

Warren County

271969LowNot Rated
Andrian-Wright-Idnr

Washington County

232005LowNot Rated
Angran Dam

Monroe County

332001LowNot Rated
Ankeny Golf & Country Club Dam

Polk County

311962LowNot Rated
Anna Smith Dam

Cass County

292023LowNot Rated
Anthon Subwatershed M-4001

Woodbury County

281954LowNot Rated
Anthon Subwatershed Site 2-2760

Woodbury County

251954LowNot Rated
Appanoose Country Club Dam

Appanoose County

331999LowNot Rated
Appanoose County Roadgrade

Appanoose County

271988LowNot Rated
Appanoose County Roadgrade

Appanoose County

241988LowNot Rated
Appanoose County Roadgrade Dam 19-69-19

Appanoose County

291965LowNot Rated
Appanoose County Roadgrade Dam 2-68-18

Appanoose County

251964LowNot Rated
Appanoose County Roadgrade Dam 27-68-19

Appanoose County

261966LowNot Rated
Appanoose County Roadgrade Dam 32-68-18

Appanoose County

301969LowNot Rated
Appanoose County Roadgrade Dam L-3-65

Appanoose County

271964LowNot Rated
Appenzeller Dam

Dallas County

351961LowNot Rated
Archer S Ltd. Dam

Davis County

271996LowNot Rated
Archer Wetland Dam

Appanoose County

81999LowNot Rated
Arco Dam

Dickinson County

291968LowNot Rated
Arcola Subwatershed Site 1-5084

Monona County

281965LowNot Rated
Arcola Subwatershed Site 2-3090

Monona County

271965LowNot Rated
Arcola Subwatershed Site B-3000

Monona County

341965LowNot 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.