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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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Hollow Dam

New York — St. Lawrence County — West Branch Oswegatchie River

Location

StateNew York
CountySt. Lawrence
RiverWest Branch Oswegatchie River
Coordinates44.29710, -75.33630

Physical Characteristics

NID Height31 ft
Dam Height31 ft
Dam Length386 ft
NID Storage220 acre-ft
Max Storage220 acre-ft
Surface Area16 acres

Safety Classification

Hazard PotentialLow
Condition AssessmentSatisfactory
EAP StatusNot Required
Last InspectionAugust 12, 2025
Inspection Frequency3

Dam Information

Year Completed1987
Primary PurposeHydroelectric
Dam TypeConcrete
Owner TypePrivate
OwnerAmpersand Hollow Dam Hydro, LLC

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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