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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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Holly Hills Section 4 Swm Pond 1

Maryland — Frederick County — Long Branch

Location

StateMaryland
CountyFrederick
RiverLong Branch
Coordinates39.38972, -77.32472

Physical Characteristics

NID Height26 ft
Dam Height26 ft
Dam Length500 ft
NID Storage73 acre-ft
Max Storage73 acre-ft
Surface Area0 acres

Safety Classification

Hazard PotentialSignificant
Condition AssessmentSatisfactory
EAP StatusNo
Last InspectionJanuary 29, 2024
Inspection Frequency—

Dam Information

Year Completed2001
Primary PurposeFlood Risk Reduction
Dam TypeEarth
Owner TypePrivate
OwnerHolly Hills HOA

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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