LOWER HELL HOLE - CA00000-212
Dam Name: LOWER HELL HOLE
State: CA
Downstream Hazard Potential:
Incident Type: Failure
Incident Date: 12/22/1964
Incident Driver: Unknown
Incident Mechanism 1: Unknown
Incident Mechanism 2
Incident Mechanism 3
Incident IDCA00000-212
Incident Description
Named Hydrologic Event
EAP Enacted (Y/N) due to IncidentNo
Fatalities (Number)
Number of People Evacuated
Number of Habitable Structures Evacuated
Number of Habitable Structures Flooded
Other Infrastructure Impacts
Economic Damages (in $)over $100 million
Response
Volume released at failure (ac-ft)
Additional Remarks or Updatesapprox 100 miles east of Sacramento. 200 high section of the embankment failed due to erosion resulting from record rains during construction. 30,000 af flood destroyed 2 suspension bridges and 1 steel girder State highway bridge. $160M in lawsuits filed
Owner Type
Dam TypeER
Primary Purpose(s)
EAP
Dam Height410 ft
Max Storage (ac-ft)
Surface Area (acres)0.00
Year Completed
NID NumberCA00000
River NameRUBICON
Latitude0
Longitude0
Year Modified
Regulatory Agency(ies)
Incident Time
Incident Duration
Incident Report Produced
Information Sources
