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 1651–1675 of 3,759

All High Hazard Significant Hazard Low Hazard Poor Fair Satisfactory

Dam Name	Height (ft)	Year	Hazard	Condition
Mill Picayune Watershed Site N-1 Shelby County	37	1972	Low	Not Rated
Mill Picayune Watershed Site M-6-1 Harrison County	37	1992	Low	Not Rated
Mill Picayune Watershed Site M-6 Shelby County	40	1961	Low	Not Rated
Mill Picayune Watershed Site M-33-2 Crawford County	41	1993	Low	Not Rated
Mill Picayune Watershed Site M-3-1 Harrison County	48	1964	Low	Not Rated
Mill Picayune Watershed Site M-30-2 Crawford County	34	1972	Low	Not Rated
Mill Picayune Watershed Site M-29-2 Crawford County	47	1967	Low	Not Rated
Mill Picayune Watershed Site M-29-1 Crawford County	34	1993	Low	Not Rated
Mill Picayune Watershed Site M-27-1 Crawford County	40	1961	Low	Not Rated
Mill Picayune Watershed Site M-24-7 Shelby County	35	1972	Low	Not Rated
Mill Picayune Watershed Site M-24-6 Shelby County	38	1963	Low	Not Rated
Mill Picayune Watershed Site M-24-5 Shelby County	51	1963	Low	Not Rated
Mill Picayune Watershed Site M-24-4 Shelby County	51	1963	Low	Not Rated
Mill Picayune Watershed Site M-24-3 Shelby County	41	1963	Low	Not Rated
Mill Picayune Watershed Site M-24-2 Crawford County	40	1972	Low	Not Rated
Mill Picayune Watershed Site M-24-16 Shelby County	45	1972	Low	Not Rated
Mill Picayune Watershed Site M-24-15 Shelby County	31	1963	Low	Not Rated
Mill Picayune Watershed Site M-24-12 Shelby County	37	1961	Low	Not Rated
Mill Picayune Watershed Site M-24-10 Shelby County	36	1964	Low	Not Rated
Mill Picayune Watershed Site M-2-3 Harrison County	39	1967	Low	Not Rated
Mill Picayune Watershed Site M-22-6 Shelby County	50	1978	Low	Not Rated
Mill Picayune Watershed Site M-22-13 Shelby County	38	1978	Low	Not Rated
Mill Picayune Watershed Site M-22-12 Shelby County	45	1978	Low	Not Rated
Mill Picayune Watershed Site M-22-1 Shelby County	34	1978	Low	Not Rated
Mill Picayune Watershed Site M-2-2 Harrison County	45	1967	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.