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 18761900 of 3,759

Dam NameHeight (ft)YearHazardCondition
Lum Hollow Subwatershed 9c-3295

Woodbury County

351959LowNot Rated
Lum Hollow Subwatershed 9-7697

Woodbury County

311959LowNot Rated
Lum Hollow Subwatershed 9-5186

Woodbury County

401959LowNot Rated
Lum Hollow Subwatershed 9-3544

Woodbury County

471959LowNot Rated
Lum Hollow Subwatershed 9-10651

Woodbury County

251959LowNot Rated
Lum Hollow Subwatershed 7-2982

Woodbury County

271959LowNot Rated
Lum Hollow Subwatershed 6-5495

Woodbury County

431959LowNot Rated
Lum Hollow Subwatershed 12-10865

Woodbury County

271959LowNot Rated
Luers Dam

Washington County

281996LowNot Rated
Ludwig Dam

Warren County

302002LowNot Rated
Ludvigson Dam

Woodbury County

281975LowNot Rated
Lucas County Roadgrade Dam (L-2)

Lucas County

441989LowNot Rated
Lucas County Roadgrade Dam (L-1)

Lucas County

491989LowNot Rated
Lucas County Roadgrade Dam 30-72-20

Lucas County

301983LowNot Rated
Lucas County Roadgrade Dam 14-71-21

Lucas County

171968LowNot Rated
Lucas Co. Grade Stab.

Lucas County

261981LowNot Rated
Ls Miller 4-3375

Woodbury County

321960LowNot Rated
Ls Janet Lindgren

Ida County

341998LowNot Rated
Ls Dennis Lindgren

Ida County

351995LowNot Rated
Lowery/Egly Dam

Wayne County

241993LowNot Rated
Lowery Dam

Wayne County

241982LowNot Rated
Lower Dunbar Dam

Greene County

71996LowNot Rated
Lower Beaver Subwtrshd Sta 80+04 #7a

Monona County

261965LowNot Rated
Lower Beaver Subwtrshd Sta 21+00 #2

Monona County

431965LowNot Rated
Lowary Dam

Henry County

262008LowNot 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.