Upriver Dam

High HazardPoor ConditionEmergency Action Plan: Yes

Location

StateWashington
CountySpokane
Nearest CitySpokane, WA
River/StreamSpokane River
Coordinates47.68628, -117.32853

Physical Characteristics

Dam TypeConcrete
NID Height38 ft
Dam Height38 ft
Dam Length725 ft
Year Completed1937 (89 years old)

Storage & Hydraulics

NID Storage3,000 acre-ft
Normal Storage3,000 acre-ft
Surface Area50 acres
Drainage Area4,057 sq mi
Max Discharge58,000 cfs
Spillway TypeControlled

Ownership & Safety

PurposeHydroelectric
OwnerCity of Spokane
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentPoor
Last Inspection07/23/2025
Emergency Action PlanYes

Identifiers

NID IDWA00074
Federal IDWA00074
More InfoState Dam Safety Program

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