Alpine Auxiliary No. 2

Low HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateCalifornia
CountyAlpine
Nearest CityDorrington
River/StreamSilver Creek
Coordinates38.47220, -120.00520

Physical Characteristics

Dam TypeRockfill
NID Height21 ft
Dam Height21 ft
Dam Length166 ft

Storage & Hydraulics

NID Storage4,300 acre-ft
Max Storage4,300 acre-ft
Normal Storage4,120 acre-ft
Surface Area172 acres
Drainage Area5 sq mi
Max Discharge3,400 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeHydroelectric
OwnerNorthern California Power Agency
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection08/10/2022
Emergency Action PlanYes

Identifiers

NID IDCA00422
Federal IDCA00422S001
More InfoState Dam Safety Program

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