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 226250 of 3,759

Dam NameHeight (ft)YearHazardCondition
Wessel Sediment Basin

Delaware County

352005LowNot Rated
Weselmann Dam

Winneshiek County

312021LowNot Rated
Weppler Dam

Cass County

332023LowNot Rated
Wenger Subwatershed Sta 43+88 #M

Woodbury County

361965LowNot Rated
Wenger Subwatershed Sta 32+00 #5

Woodbury County

281965LowNot Rated
Wenger Subwatershed Sta 16+00 #5

Woodbury County

381965LowNot Rated
Wenger Subwatershed #M Sta 25+50

Woodbury County

321965LowNot Rated
Wenger Subwatershed M 130+73

Woodbury County

301965LowNot Rated
Wenger Dam

Washington County

352005LowNot Rated
Wendl Dam

Carroll County

291959LowNot Rated
Wells Dam

Lucas County

251960LowNot Rated
Welch Dam

Hardin County

351972LowNot Rated
Weiser Dam

Clarke County

432006LowNot Rated
Weis Dam

Union County

341971LowNot Rated
Weis Dam

Woodbury County

451976LowNot Rated
Weimann Dam

Audubon County

311980LowNot Rated
Weed Dam

Crawford County

371959LowNot Rated
Wedeking Dam

Butler County

201971LowNot Rated
Webster Dam

Dallas County

291979LowNot Rated
Weber Creek Subwatershed Site M-9000

Woodbury County

291955LowNot Rated
Weber Creek Subwatershed Site M-5276

Woodbury County

331955LowNot Rated
Weber Creek Subwatershed Site M-18555

Woodbury County

281956LowNot Rated
Weber Creek Subwatershed Site M-17052

Woodbury County

401956LowNot Rated
Weber Creek Subwatershed Site M-15543

Woodbury County

351956LowNot Rated
Weber Creek Subwatershed Site M-13941

Woodbury County

251955LowNot 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.