Volvo Hagerstown Swm - MD00581-3433
Dam Name: Volvo Hagerstown Swm
State: MD
Downstream Hazard Potential: S
Incident Type: Non-Failure
Incident Date: 09/01/2021
Incident Driver: Hydrologic/Flooding
Incident Mechanism 1: Debris Clogging
Incident Mechanism 2Insufficient Spillway Capacity
Incident Mechanism 3Overtopping
Incident IDMD00581-3433
Incident DescriptionUndersized spillway, partially plugged, resulted in minor overtopping and emergency response
Named Hydrologic EventHurricane Ida
EAP Enacted (Y/N) due to IncidentYes
Fatalities (Number)0
Number of People EvacuatedUnknown
Number of Habitable Structures Evacuated1
Number of Habitable Structures Flooded0
Other Infrastructure Impacts
Economic Damages (in $)Unknown
ResponseEmergency pumping and partial removal of riser to clear blockage
Volume released at failure (ac-ft)
Additional Remarks or Updates
Owner TypeP
Dam TypeRE
Primary Purpose(s)C
EAPY
Dam Height10 ft
Max Storage (ac-ft)48.00
Surface Area (acres)0.00
Year Completed1961
NID NumberMD00581
River NameAntietam Creek-TR
Latitude39.675
Longitude-77.723
Year Modified
Regulatory Agency(ies)MD Dam Safety
Incident Time4:51 PM
Incident Duration
Incident Report ProducedYes
Information SourcesMD Dam Safety
