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 11011125 of 4,124

Dam NameHeight (ft)YearHazardCondition
Shelton Dam

Lucas County

271991LowNot Rated
Shelton Dam

Lucas County

331978LowNot Rated
Shell Rock Milldam

Butler County

71928LowNot Rated
Sheley/King Dam

Taylor County

281980LowNot Rated
Shelby County Roadgrade Dam 1-81-40

Shelby County

261958LowNot Rated
Sheckler Dam

Jefferson County

301965LowNot Rated
Shaw Dam

Henry County

271976LowNot Rated
Shaw Dam

Des Moines County

331969LowNot Rated
Shaw Dam

Fremont County

302003LowNot Rated
Shattuck Dam

Dallas County

262007LowNot Rated
Sharp Dam

Crawford County

301954LowNot Rated
Sharp Dam

Crawford County

281945LowNot Rated
Sharp Dam

Union County

211980LowNot Rated
Shaha Dam

Ringgold County

362003LowNot Rated
Seymour Reservoir Dam

Wayne County

241908LowFair
Seven Thousand Development Dam

Jefferson County

241995LowNot Rated
Seven Cedars Farms Dam

Crawford County

362001LowNot Rated
Sevcik Dam

Tama County

311995LowNot Rated
Seran Dam

Pottawattamie County

322000LowNot Rated
Semke Dam

Greene County

461998LowNot Rated
Sels Dam

Van Buren County

231957LowNot Rated
Sells Dam

Cherokee County

432007LowNot Rated
Seley Dam

Adair County

261990LowNot Rated
Seippel Road Dam

Dubuque County

342000SignificantNot Rated
Seed Savers Dam

Winneshiek County

342021LowNot 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.