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 351–375 of 4,124

All High Hazard Significant Hazard Low Hazard Poor Fair Satisfactory

Dam Name	Height (ft)	Year	Hazard	Condition
Walton Dam Benton County	34	1998	Low	Not Rated
Walters Dam Hardin County	30	1999	Low	Not Rated
Walters Creek Watershed Site D-23-2 Adams County	30	1972	Low	Not Rated
Walters Creek Watershed Site D-15-2 Adams County	46	1972	Low	Not Rated
Walters Creek Watershed Site 5-2 Adams County	31	1967	Low	Not Rated
Walters Creek Watershed Site 5-1 Adams County	25	1967	Low	Not Rated
Walters Creek Watershed Site 44-1 Adams County	33	1969	Low	Not Rated
Walters Creek Watershed Site 43-1 Adams County	33	1967	Low	Not Rated
Walters Creek Watershed Site 4-2 Adams County	34	1967	Low	Not Rated
Walters Creek Watershed Site 40-1 Adams County	22	1969	Low	Not Rated
Walters Creek Watershed Site 39-1 Adams County	26	1969	Low	Not Rated
Walters Creek Watershed Site 33-2 Adams County	20	1969	Low	Not Rated
Walters Creek Watershed Site 33-1 Adams County	19	1969	Low	Not Rated
Walters Creek Watershed Site 31-2 Adams County	24	1969	Low	Not Rated
Walters Creek Watershed Site 29-3 Adams County	27	1969	Low	Not Rated
Walters Creek Watershed Site 29-1 Adams County	25	1969	Low	Not Rated
Walters Creek Watershed Site 26-1 Adams County	21	1967	Low	Not Rated
Walters Creek Watershed Site 25-1 Adams County	37	1967	Low	Not Rated
Walters Creek Watershed Site 24-4 Adams County	29	1968	Low	Not Rated
Walters Creek Watershed Site 24-3 Adams County	27	1968	Low	Not Rated
Walters Creek Watershed Site 24-2 Adams County	23	1968	Low	Not Rated
Walters Creek Watershed Site 24-1 Adams County	29	1968	Low	Not Rated
Walters Creek Watershed Site 23-3 Adams County	32	1972	Low	Not Rated
Walters Creek Watershed Site 22-1 Adams County	29	1968	Low	Not Rated
Walters Creek Watershed Site 18-2 Adams County	46	1972	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.