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 22012225 of 3,759

Dam NameHeight (ft)YearHazardCondition
Jeff Lutrick Dam

Ringgold County

252020LowNot Rated
Jefferson Park Dam

Jefferson County

281995LowNot Rated
Jefferson County Roadgrade Dam 7-72-8

Jefferson County

262007LowNot Rated
Jefferson County Roadgrade Dam 25-73-10

Jefferson County

282005LowNot Rated
Jefferson County Roadgrade Dam 24-72-11

Jefferson County

251984LowNot Rated
Jefferson County Roadgrade Dam 16-73-9

Jefferson County

242002LowNot Rated
Jeanes Dam

Ringgold County

222005LowNot Rated
Jdw Dam

Iowa County

281970LowNot Rated
Jd LLC Pond

Guthrie County

442021LowNot Rated
Jass Dam

Decatur County

261979LowNot Rated
Jasper County Roadgrade Dam 35-81-17

Jasper County

282001LowNot Rated
Jasper County Roadgrade Dam 20-81-20

Jasper County

392002LowNot Rated
Jasper County Roadgrade Dam 15-81-20

Jasper County

382005LowNot Rated
Jasper County Dam 26-80-17

Jasper County

291997LowNot Rated
Jarrett Dam

Des Moines County

352023LowNot Rated
Jar Farms

Montgomery County

372001LowNot Rated
Jansma Dam

Lyon County

221970LowNot Rated
Jansen Dam

Jasper County

242006LowNot Rated
Jandik Dam

Warren County

372000LowNot Rated
James Russmann Dam

Pottawattamie County

242016LowNot Rated
James King Wetland Dam

Muscatine County

111999LowNot Rated
James Dam

Warren County

301979LowNot Rated
Jalas Dam

O'Brien County

341965LowNot Rated
Jaeschke Dam

Clarke County

331976LowNot Rated
Jacobson Dam

Crawford County

361963LowNot 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.