BYLLESBY - VA03501-1540
Dam Name: BYLLESBY
State: VA
Downstream Hazard Potential: H
Incident Type: Non-Failure
Incident Date: 01/31/2013
Incident Driver: Hydrologic/Flooding
Incident Mechanism 1: Overtopping
Incident Mechanism 2
Incident Mechanism 3
Incident IDVA03501-1540
Incident DescriptionSevere storms caused water to flow over the dam and flashboards, causing the water pressure to build up to potentially unsafe levels behind the dams. The flashboards are designed to give way but in this case, they needed to be removed by hand.
Named Hydrologic Event
EAP Enacted (Y/N) due to IncidentYes
Fatalities (Number)
Number of People Evacuated
Number of Habitable Structures Evacuated
Number of Habitable Structures Flooded
Other Infrastructure Impacts
Economic Damages (in $)
Response
Volume released at failure (ac-ft)
Additional Remarks or UpdatesPulaski County declared a state of emergency and issued mandatory evacuations in the Parrott, Belspring, Hiwassee, Delton, and Allisonia communities. About 80 homes were contacted for evacuation.
Owner TypeU
Dam TypePGCN
Primary Purpose(s)HR
EAPY
Dam Height63 ft
Max Storage (ac-ft)2034.00
Surface Area (acres)242.00
Year Completed1912
NID NumberVA03501
River NameNEW RIVER
Latitude36.7858
Longitude-80.9336
Year Modified
1993
Regulatory Agency(ies)DCR
Incident Time
Incident Duration
Incident Report Produced
Information Sources
