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 19011925 of 3,759

Dam NameHeight (ft)YearHazardCondition
Lounsberry Dam

Monona County

351975LowNot Rated
Louisa County Roadgrade Dam 24-74-3

Louisa County

281989LowNot Rated
Louisa County Raodgrade Dam 36-73-3

Louisa County

402002LowNot Rated
Lorenzen Dam

Clinton County

331998LowNot Rated
Lorenz Dam

Henry County

282012LowNot Rated
Longinaker Dam

Fremont County

271965LowNot Rated
Long Dam

Warren County

411967LowNot Rated
Logsdon Dam

Lucas County

191996LowNot Rated
Logan Dam

Davis County

211999LowNot Rated
Logan Dam

Davis County

311998LowNot Rated
Loewe Dam

Fremont County

271985LowNot Rated
Loch Burns Dam

Wapello County

301963LowFair
Livingston Dam

Taylor County

311974LowNot Rated
Little Whiskey Subwatershed Site M-1

Woodbury County

371984LowNot Rated
Little Whiskey Subwatershed Site 16-2

Woodbury County

362001LowNot Rated
Littleton Dam

Buchanan County

91934LowNot Rated
Little Sioux Scout Ranch Dam

Monona County

461974LowNot Rated
Little Sioux River Bedgrade Control

Harrison County

81985LowNot Rated
Little Sioux Dam

Harrison County

71963LowNot Rated
Little River Watershed Site 65-2

Decatur County

301980LowNot Rated
Little River Watershed Site 65-1

Decatur County

311980LowNot Rated
Little River Watershed Site 58

Decatur County

282006LowNot Rated
Little Paint Creek Watershed Site 206a

Allamakee County

422005LowNot Rated
Little Paint Creek Watershed Site 200

Allamakee County

341999LowNot Rated
Littlefield Silt Control Dam

Audubon County

151987LowNot 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.