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 801825 of 3,759

Dam NameHeight (ft)YearHazardCondition
Dudley Dam

Wayne County

281989LowNot Rated
Dudycha Wrp #1

Buena Vista County

72002LowNot Rated
Dudycha Wrp #2

Buena Vista County

122002LowNot Rated
Duer Dam

Monroe County

302000LowNot Rated
Duey Dam

Monroe County

261993LowNot Rated
Duffield Dam

Davis County

301982LowNot Rated
Dugout Creek Wetland Dam

Dickinson County

121993LowNot Rated
Dukes Dam

Adair County

242002LowNot Rated
Dunham Dam

Crawford County

581970LowNot Rated
Dunham Dam

Johnson County

381978LowNot Rated
Dunn Dam

Montgomery County

321990LowNot Rated
Dutch Hollow Subwatershed Site 1-2

Woodbury County

401989LowNot Rated
Dutch Hollow Subwatershed Site 1-3

Woodbury County

351991LowNot Rated
Dutch Hollow Subwatershed Site 1-5

Woodbury County

261994LowNot Rated
Dutch Hollow Subwatershed Site 1-8

Woodbury County

451994LowNot Rated
Dutch Hollow Subwatershed Site 1a-1

Woodbury County

411991LowNot Rated
Dutch Hollow Subwatershed Site 4-1

Woodbury County

421984LowNot Rated
Dutch Hollow Subwatershed Site M-1

Woodbury County

261983LowNot Rated
Dutch Hollow Subwatershed Site M-2

Woodbury County

281984LowNot Rated
Dutch Hollow Subwatershed Site M-3

Woodbury County

421984LowNot Rated
Dutch Hollow Subwatershed Site M-4

Woodbury County

331984LowNot Rated
Dykes Dam

Davis County

272010LowNot Rated
Dyson Dam

Monroe County

301991LowNot Rated
Dzaboff Dam

Delaware County

281970LowNot Rated
Eagle Pond Dam

Boone County

49LowNot 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.