Iowa Dams

4,124 dams tracked by the National Inventory of Dams

Total Dams

4,124

High Hazard

2.2%

Poor / Unsatisfactory

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

State

141

Local

1,938

Private

2,014

Tallest Dams

High Hazard Dams

Poor Condition Dams

All Dams in Iowa

Showing 376–400 of 4,124

All High Hazard Significant Hazard Low Hazard Poor Fair Satisfactory

Dam Name	Height (ft)	Year	Hazard	Condition
Walters Creek Watershed Site 16-1 Adams County	29	1968	Low	Not Rated
Walters Creek Watershed Site 15-3 Adams County	35	1972	Low	Not Rated
Walters Creek Watershed Site 15-1 Adams County	31	1972	Low	Not Rated
Walters Creek Watershed Site 14-1 Adams County	31	1969	Low	Not Rated
Walters Creek Watershed Site 13-1 Adams County	33	1967	Low	Not Rated
Walters Creek Watershed Site 12-2 Adams County	32	1968	Low	Not Rated
Walters Creek Watershed Site 12-1 Adams County	34	1968	Low	Not Rated
Walter Dam Ringgold County	27	2005	Low	Not Rated
Walter/Anderson Dam Adams County	34	1989	Low	Not Rated
Walnut Creek Duck Marsh Dam Ringgold County	8	1959	Low	Not Rated
Walnut Creek Dam Site 2 Jefferson County	25	1995	Low	Not Rated
Walnut Creek Dam Site 1 Jefferson County	27	1995	Low	Not Rated
Walling Subwatershed Sta 99+70 #1 Woodbury County	40	1953	Low	Not Rated
Walling Subwatershed Sta 78+96 #1b Woodbury County	32	1953	Low	Not Rated
Walling Subwatershed Sta 77+50 #1 Woodbury County	48	1953	Low	Not Rated
Walling Subwatershed Sta 57+84 #1b Woodbury County	51	1953	Low	Not Rated
Walling Subwatershed Sta 55+40 #1 Woodbury County	50	1953	Low	Not Rated
Walling Subwatershed Sta 42+05 #4 Woodbury County	48	1953	Low	Not Rated
Walling Subwatershed Sta 38+00 #1b Woodbury County	32	1953	Low	Not Rated
Walling Subwatershed Sta 31+73 #1 Woodbury County	28	1953	Low	Not Rated
Walling Subwatershed Sta 23+00 #1h Woodbury County	32	1953	Low	Not Rated
Walling Subwatershed Sta 20+86 #1b Woodbury County	35	1953	Low	Not Rated
Walling Subwatershed Sta 19+70 #4 Woodbury County	31	1953	Low	Not Rated
Walling Subwatershed Sta 19+11 #1k Woodbury County	28	1953	Low	Not Rated
Walling Subwatershed Sta 18+50 #1j Woodbury County	32	1953	Low	Not 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.