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Bridge Safety624,000 bridge inspections Aviation Safety30,000+ NTSB aviation events Dam Safety92,600 dam safety records Water Safety433,000+ public water systems Railroad Safety438,000+ rail crossings Pipeline Safety8,800+ pipeline incidents State DashboardsSafety grades for all 50 states ZIP ReportAny 5-digit ZIP across 9 datasets

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Hendrickson Marsh Dam

Iowa, Marshall County, MARSHALL-STORY D.D. #2

Location

StateIowa
CountyMarshall
RiverMARSHALL-STORY D.D. #2
Coordinates41.93840, -93.23150

Physical Characteristics

NID Height18 ft
Dam Height18 ft
Dam Length321 ft
NID Storage2,800 acre-ft
Max Storage2,800 acre-ft
Surface Area264 acres

Safety Classification

Hazard PotentialSignificant
Condition AssessmentSatisfactory
EAP StatusNot Required
Last InspectionJune 5, 2020
Inspection Frequency5

Dam Information

Year Completed1967
Primary PurposeRecreation
Dam TypeEarth
Owner TypeState
OwnerIowa Department of Natural Resources

Location Map

About This Dam Record

Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.

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