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Product Safety9,700+ CPSC product recalls Food Safety28,600+ FDA food recalls Pet Safety1.3M FDA animal adverse events Drug Safety17,500+ FDA drug recalls Device Safety38,400+ FDA device recalls Workplace Safety102,900+ OSHA injury reports Brand HistoryRecall lookup by company

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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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Harrison County Roadgrade Dam 18-79-43

Iowa — Harrison County — TR-WILLOW CREEK

Location

StateIowa
CountyHarrison
RiverTR-WILLOW CREEK
Coordinates41.65890, -95.90080

Physical Characteristics

NID Height66 ft
Dam Height66 ft
Dam Length395 ft
NID Storage486 acre-ft
Max Storage486 acre-ft
Surface Area14 acres

Safety Classification

Hazard PotentialSignificant
Condition AssessmentFair
EAP StatusNot Required
Last InspectionOctober 11, 2023
Inspection Frequency5

Dam Information

Year Completed1959
Primary PurposeOther
Dam TypeEarth
Owner TypeLocal Government
OwnerHarrison County Board of Supervisors
Other NameSaw Mill Hollow - Upper Site

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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