PILLAR ROCK - WA00000-215


Incident ID WA00000-215
Dam Name PILLAR ROCK
Downstream Hazard Potential
State WA
Incident Date 01/01/1970
Incident Type Failure
Incident Driver Hydrologic/flooding
Incident Mechanism 1 Overtopping
Incident Mechanism 2
Incident Mechanism 3
Incident Description
Named Hydrologic Event
EAP Enacted (Y/N) due to Incident No
Fatalities (Number)
Number of People Evacuated
Number of Habitable Structures Evacuated
Number of Habitable Structures Flooded 3
Other Infrastructure Impacts
Economic Damages (in $)
Volume released at failure (ac-ft)
Response
Additional Remarks or Updates Precise date unknown, fish cannery destroyed. Logging roadfill culvert blocked by debris, overtopped and failed, caused 25 foot high concrete gravity dam to fail..
Incident Time
Incident Duration
Incident Report Produced
Information Sources
Owner Type
Dam Type PG
Primary Purpose(s)
EAP
Year Completed 0
Year Modified 0
Dam Height 25 ft
Max Storage (ac-ft) 0 ac-ft
Surface Area (acres) 0 acres
River Name
Latitude 0
Longitude 0
Regulatory Agency(ies)
NID Number WA00000
Attachments