DAN RIVER ACTIVE PRIMARY ASH BASIN - NC05945-1980
Dam Name: DAN RIVER ACTIVE PRIMARY ASH BASIN
State: NC
Downstream Hazard Potential: H
Incident Type: Failure
Incident Date: 02/02/2014
Incident Driver: Deterioration or Poor Condition
Incident Mechanism 1: Spillway Pipe Failure
Incident Mechanism 2
Incident Mechanism 3
Incident IDNC05945-1980
Incident DescriptionFailure of a 48-inch corrugated metal storm-water pipe that ran beneath the ash basin released ash slurry into the adjacent river.
Named Hydrologic Event
EAP Enacted (Y/N) due to Incident
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)83
Additional Remarks or UpdatesAn estimated 82,000 tons of ash were released into the river. The pipe was thought to be reinforced concrete but it was actually CMP and only RCP at the outlet. Estimated 27 M gallons of basin water released.
Owner TypeU
Dam TypeRE
Primary Purpose(s)O
EAPY
Dam Height40 ft
Max Storage (ac-ft)
Surface Area (acres)0.00
Year Completed
NID NumberNC05945
River NameDAN RIVER
Latitude36.4883
Longitude-79.7148
Year Modified
Regulatory Agency(ies)NCDENR
Incident Time
Incident Duration
Incident Report Produced
Information Sources
