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 125 of 3,759

Dam NameHeight (ft)YearHazardCondition
Zimmerman Dam

Warren County

271998LowNot Rated
Zenishek Dam

Johnson County

251979LowNot Rated
Zellmer Subwtrshd Sta 60+50 #A

Woodbury County

241964LowNot Rated
Zellmer Subwtrshd Sta 54+60 #B1

Woodbury County

301964LowNot Rated
Zellmer Subwtrshd Sta 31+70 #M

Woodbury County

421964LowNot Rated
Zellmer Subwtrshd #M 106+26

Woodbury County

391964LowNot Rated
Zellmer Subwtrshd #B 22+50

Woodbury County

271964LowNot Rated
Zellmer Subwatershed Site J-1a

Woodbury County

422002LowNot Rated
Zaugg Dam

Pocahontas County

421998LowPoor
Zach Mendenhall Dam

Clarke County

262017LowNot Rated
Zach Anderson Dam

Montgomery County

322024LowNot Rated
Youngren Dam

Webster County

381985LowNot Rated
Young Dam

Buena Vista County

291979LowNot Rated
Young Dam

Polk County

251980LowNot Rated
Young Dam

Polk County

312004LowNot Rated
Young Dam

Madison County

351969LowNot Rated
Yellowsmoke Watershed Site D-2

Crawford County

251989LowNot Rated
Yellowsmoke Watershed Site D-1

Crawford County

241989LowNot Rated
Yellowbanks Dam

Polk County

411986LowSatisfactory
Yates Dam

Appanoose County

251972LowNot Rated
Yahnke Dam

Davis County

301970LowNot Rated
Wuthrich Dam

Davis County

271996LowNot Rated
Wuthrich Dam

Davis County

321976LowNot Rated
Wunschel Dam

Ida County

381997LowNot Rated
Wright Dam

Linn County

251971LowNot 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.