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 17511775 of 3,759

Dam NameHeight (ft)YearHazardCondition
Mc Larty-Edwards Subwtrshd #9 19+77

Woodbury County

331966LowNot Rated
Mc Larty-Edwards Subwatershed Site M-5

Woodbury County

231966LowNot Rated
Mc Knight Dam

Clarke County

181965LowNot Rated
Mc Kenzie/Child Dam

Pottawattamie County

311959LowNot Rated
Mckean Dam

Adams County

292013LowNot Rated
Mcintyre Dam

Decatur County

302013LowNot Rated
Mc Intosh Dam

Harrison County

421977LowNot Rated
Mchugh Dam

Monona County

312011LowNot Rated
Mc Guire Dam

Union County

292003LowNot Rated
Mc Grew Brothers Dam

Mills County

352001LowNot Rated
Mc Glaughlin Wetland Dam

Wright County

92002LowNot Rated
Mc Farland Lake Dam

Story County

271966LowNot Rated
Mc Fadden Dam

Clarke County

401969LowNot Rated
Mc Dowell Dam

Wapello County

381999LowNot Rated
Mc Donnell Dam

Ringgold County

282004LowNot Rated
Mc Donald Subwatershed Site 5-2290

Woodbury County

331959LowNot Rated
Mc Donald Subwatershed Site 1

Woodbury County

351985LowNot Rated
Mc Donald Subwatershed 4-2557

Woodbury County

441960LowNot Rated
Mc Donald Dam

Van Buren County

251964LowNot Rated
Mc Donald Dam

Union County

302001LowNot Rated
Mc Daniel Dam

Story County

381963LowNot Rated
Mc Cunn Dam

Page County

261976LowNot Rated
Mc Cune Dam

Iowa County

322001LowNot Rated
Mc Creedy Dam

Jefferson County

312002LowNot Rated
Mc Coy Dam

Monroe County

281994LowNot 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.