|
Incident ID |
CA00380-3255 |
|
Dam Name |
LOWER BLUE LAKE |
|
Downstream Hazard Potential |
L |
|
State |
CA |
|
Incident Date |
06/26/2018 |
|
Incident Type |
Non-failure |
|
Incident Driver |
Seepage/internal Erosion |
|
Incident Mechanism 1 |
Excessive/increased Seepage |
|
Incident Mechanism 2 |
|
|
Incident Mechanism 3 |
|
|
Incident Description |
Damp spots on the downstream face along the length of the left embankment, localized small active seep from damp area, and seepage boil located ~10 feet downstream of the toe on left side of the dam. |
|
Named Hydrologic Event |
|
|
EAP Enacted (Y/N) due to Incident |
No |
|
Fatalities (Number) |
0 |
|
Number of People Evacuated |
0 |
|
Number of Habitable Structures Evacuated |
0 |
|
Number of Habitable Structures Flooded |
0 |
|
Other Infrastructure Impacts |
None |
|
Economic Damages (in $) |
None |
|
Volume released at failure (ac-ft) |
|
|
Response |
Immediate response by dam owner and Division of Safety of Dams. Spillway stoplogs have been removed and the reservoir restricted. |
|
Additional Remarks or Updates |
|
|
Incident Time |
|
|
Incident Duration |
|
|
Incident Report Produced |
Yes |
|
Information Sources |
CA DSOD |
|
Owner Type |
P |
|
Dam Type |
RE |
|
Primary Purpose(s) |
H |
|
EAP |
NR |
|
Year Completed |
1885 |
|
Year Modified |
0 |
|
Dam Height |
40 ft |
|
Max Storage (ac-ft) |
5091 ac-ft |
|
Surface Area (acres) |
198 acres |
|
River Name |
BLUE CREEK |
|
Latitude |
38.6088 |
|
Longitude |
-119.927 |
|
Regulatory Agency(ies) |
DWR, SAFETY OF DAMS |
|
NID Number |
CA00380 |
|
Attachments |
|
