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 326350 of 4,124

Dam NameHeight (ft)YearHazardCondition
Waterloo Milldam

Black Hawk County

71915LowSatisfactory
Waterhouse Wetalnd Dam

Washington County

102003LowNot Rated
Waterhouse Dam

Washington County

341999LowNot Rated
Waterhouse Dam

Washington County

291969LowNot Rated
Waterhouse Dam

Washington County

271977LowNot Rated
Waterford Pond Dam

Polk County

401966LowFair
Wasteney Dam

Union County

241977LowNot Rated
Washington County Cons Bd Dam

Washington County

292000LowNot Rated
Washington CO Road Dam 3-74-7

Washington County

362002LowNot Rated
Washington CO Road Dam 35-74-9

Washington County

272004LowNot Rated
Washington CO Road Dam 26-74-9

Washington County

312005LowNot Rated
Washington CO Road Dam 23-74-9

Washington County

272005LowNot Rated
Washington CO Road Dam 22-74-9

Washington County

292005LowNot Rated
Washburn Subwatershed Sta 35+40 Gul.1

Woodbury County

451960LowNot Rated
Washburn Subwatershed Sta28+00 Gully3

Woodbury County

321960LowNot Rated
Warriner Dam

Boone County

112023LowNot Rated
Warren Dam

Wayne County

281998LowNot Rated
Warren Co. Conservatation Park Dam

Warren County

271961LowNot Rated
Warner Dam

Wapello County

351989LowNot Rated
Warner Dam

Page County

291976LowNot Rated
Ware Dam

Davis County

262000LowNot Rated
Wardyn Dam

Guthrie County

281974LowNot Rated
Ward Dam

Appanoose County

291990LowNot Rated
Ward Business Park Dam

Polk County

172001SignificantNot Rated
Walton Lake Dam

Jefferson County

351900SignificantSatisfactory
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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.