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 4,124

Dam NameHeight (ft)YearHazardCondition
Meggison Dam

Dallas County

301977LowNot Rated
Meadow Lake Sediment Detention Dam

Adair County

232010LowNot Rated
Meadow Lake Dam

Adair County

391964SignificantFair
Mead Dam

Warren County

281981LowNot Rated
Mc Whirter Dam

Jasper County

321960LowNot Rated
Mc Murray Wetland Dam

Wayne County

161998LowNot Rated
Mc Mullin Dam

Wapello County

222002LowNot Rated
Mc Millan Dam

Decatur County

281987LowNot Rated
Mc Masters Subwatershed 3907

Monona County

421955LowNot Rated
Mc Masters Subwatershed 3075

Monona County

251955LowNot Rated
Mc Masters Subwatershed 2703

Monona County

321955LowNot Rated
Mc Manigal Dam

Mills County

321945LowNot Rated
Mc Larty-Edwards Subwtrshd Sta 73+25 #2

Woodbury County

251966LowNot Rated
Mc Larty-Edwards Subwtrshd Sta 65+93 #M

Woodbury County

331966LowNot Rated
Mc Larty-Edwards Subwtrshd Sta 54+65 #1

Woodbury County

251966LowNot Rated
Mc Larty-Edwards Subwtrshd Sta 35+50 #1

Woodbury County

301966LowNot Rated
Mc Larty-Edwards Subwtrshd Sta 20+00 #1

Woodbury County

331966LowNot Rated
Mc Larty-Edwards Subwtrshd #M 100+30

Woodbury County

271966LowNot Rated
Mc Larty-Edwards Subwtrshd #9 19+77

Woodbury County

331966LowNot Rated
Mc Larty-Edwards Subwatershed Site M-5

Woodbury County

231966LowNot Rated
Mc Knight Dam

Clarke County

181965LowNot Rated
Mc Kinley Lake Dam

Union County

191920SignificantSatisfactory
Mc Kenzie/Child Dam

Pottawattamie County

311959LowNot Rated
Mckean Dam

Adams County

292013LowNot Rated
Mcintyre Dam

Decatur County

302013LowNot 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.