Double U Fish Ranch - CA10414-3425
Dam Name: Double U Fish Ranch
State: CA
Downstream Hazard Potential: H
Incident Type: Non-Failure
Incident Date: 02/04/2021
Incident Driver: Seepage/Internal Erosion
Incident Mechanism 1: Excessive/Increased Seepage
Incident Mechanism 2Slope Stability
Incident Mechanism 3
Incident IDCA10414-3425
Incident DescriptionIllegally constructed dam. During filling, there was a slope failure. Seepage was observed through the embankment fill where the slope failure occurred. Owner was directed to dewater the reservoir. A siphon was installed and water stored was removed.
Named Hydrologic Event
EAP Enacted (Y/N) due to IncidentNo
Fatalities (Number)0
Number of People Evacuated0
Number of Habitable Structures Evacuated0
Number of Habitable Structures Flooded0
Other Infrastructure ImpactsNone
Economic Damages (in $)None
Response
Volume released at failure (ac-ft)
Additional Remarks or Updates
Owner TypeP
Dam TypeRE
Primary Purpose(s)O
EAPN
Dam Height21 ft
Max Storage (ac-ft)90.00
Surface Area (acres)0.00
Year Completed2019
NID NumberCA10414
River NamePit River-TR
Latitude41.4555
Longitude-120.901
Year Modified
Regulatory Agency(ies)DWR, Safety of Dams
Incident Time
Incident Duration
Incident Report ProducedYes
Information SourcesCA DSOD
