High Risk Dams in Iowa

Iowa has 5 high hazard dams with a condition assessment of poor or unsatisfactory. These are dams where failure would probably cause loss of human life and where recognized safety deficiencies have been identified.

Of the 91 high hazard dams in Iowa, 5 (5%) have concerning condition ratings — 5 rated poor and 0 rated unsatisfactory.

Dam	County	Height (ft)	Condition	Purpose	Year
Smokey Hollow Subwatershed Site 4	Woodbury	64	Poor	Flood Risk Reduction	1985
Held Watershed Site E-3	Plymouth	43	Poor	Flood Risk Reduction	1978
Schoenewe Dam	Des Moines	41	Poor	Recreation	1978
Held Watershed Site E-4	Plymouth	37	Poor	Flood Risk Reduction	1978
Middle Pond Dam	Iowa	27	Poor	Irrigation	1955

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