Upper Salmon Falls A-plant & Forebay

Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateIdaho
CountyTwin Falls
Nearest CityNone
River/StreamSnake River
Coordinates42.76750, -114.92470

Physical Characteristics

Dam TypeConcrete
NID Height85 ft
Dam Height85 ft
Dam Length310 ft
Year Completed1937 (89 years old)

Storage & Hydraulics

NID Storage26 acre-ft
Max Storage26 acre-ft
Normal Storage26 acre-ft
Surface Area1 acres
Drainage Area32,200 sq mi
Max Discharge6,000 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeHydroelectric
OwnerIdaho Power Company
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection09/20/2017
Emergency Action PlanNot Required

Identifiers

NID IDID83074
Federal IDID83074
More InfoState Dam Safety Program

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