FOREST LAKE DAM - NC01691-1080


Incident ID NC01691-1080
Dam Name FOREST LAKE DAM
Downstream Hazard Potential H
State NC
Incident Date 07/07/2011
Incident Type Non-failure
Incident Driver Deterioration Or Poor Condition
Incident Mechanism 1 Spillway Chute Failure
Incident Mechanism 2
Incident Mechanism 3
Incident Description A portion of the concrete chute spillway detached and fell into the void beneath approximately five feet in depth.
Named Hydrologic Event
EAP Enacted (Y/N) due to Incident Yes
Fatalities (Number)
Number of People Evacuated 32
Number of Habitable Structures Evacuated
Number of Habitable Structures Flooded
Other Infrastructure Impacts
Economic Damages (in $) None
Volume released at failure (ac-ft) 30 ac-ft
Response
Additional Remarks or Updates 30 acre-feet released by pumping. Embankment did not fail. Portion of an apartment complex and a number of homes flooded due to pumped release. Forced temporary closure of a major Charoltte thoroughfare.
Incident Time
Incident Duration
Incident Report Produced
Information Sources
Owner Type P
Dam Type RE
Primary Purpose(s) R
EAP Y
Year Completed 0
Year Modified 0
Dam Height 15 ft
Max Storage (ac-ft) 60 ac-ft
Surface Area (acres) 0 acres
River Name MCALPINE CREEK-TR
Latitude 35.205
Longitude -80.719
Regulatory Agency(ies) NCDENR
NID Number NC01691
Attachments Y