Incident ID |
CA00000-212 |
Dam Name |
LOWER HELL HOLE |
Downstream Hazard Potential |
|
State |
CA |
Incident Date |
12/22/1964 |
Incident Type |
Failure |
Incident Driver |
Unknown |
Incident Mechanism 1 |
Unknown |
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 |
|
Other Infrastructure Impacts |
|
Economic Damages (in $) |
over $100 million |
Volume released at failure (ac-ft) |
|
Response |
|
Additional Remarks or Updates |
approx 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 |
Incident Time |
|
Incident Duration |
|
Incident Report Produced |
|
Information Sources |
|
Owner Type |
|
Dam Type |
ER |
Primary Purpose(s) |
|
EAP |
|
Year Completed |
0 |
Year Modified |
0 |
Dam Height |
410 ft |
Max Storage (ac-ft) |
0 ac-ft |
Surface Area (acres) |
0 acres |
River Name |
RUBICON |
Latitude |
0 |
Longitude |
0 |
Regulatory Agency(ies) |
|
NID Number |
CA00000 |
Attachments |
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