LOWER BLUE LAKE - CA00380-3255
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
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