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 20762100 of 4,124

Dam NameHeight (ft)YearHazardCondition
Little River Watershed Site 65-1

Decatur County

311980LowNot Rated
Little River Watershed Site 65

Decatur County

451987SignificantFair
Little River Watershed Site 58

Decatur County

282006LowNot Rated
Little River Watershed Site 51-1

Decatur County

302005SignificantSatisfactory
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
Littlefield Lake Dam

Audubon County

451977HighSatisfactory
Little Egypt Subwatershed Sta 62+38 #M

Woodbury County

381961LowNot Rated
Little Egypt Subwatershed Sta 29+82 #M

Woodbury County

361961LowNot Rated
Little Egypt Subwatershed Sta 174+75 #M

Woodbury County

271961LowNot Rated
Little Egypt Subwatershed Sta 125+21 #M

Woodbury County

391961LowNot Rated
Little Egypt Subwatershed 9-2670

Woodbury County

461961LowNot Rated
Little Egypt Subwatershed 5-4730

Woodbury County

351961LowNot Rated
Little Egypt Subwatershed 5-3052

Woodbury County

441960LowNot Rated
Little Egypt Subwatershed 4-2772

Woodbury County

581961LowNot Rated
Little Beaver Subwatershed M-16730

Woodbury County

401957LowNot Rated
Little Beaver Subwatershed M-10001

Woodbury County

381957LowNot Rated
Little Beaver Subwatershed 5b-5000

Woodbury County

361957LowNot Rated
Little Beaver Subwatershed 5-8154

Woodbury County

361957LowNot Rated
Little Beaver Subwatershed 2-15127

Woodbury County

341957LowNot Rated
Little Beaver Subwatershed 2-13001

Woodbury County

271957LowNot Rated
Lint Dam

Van Buren County

271996LowNot Rated
Linn Grove Milldam

Buena Vista County

91924LowNot Rated
Linn Dam

Adair County

271974LowNot 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.