Boundary

High HazardFair ConditionEmergency Action Plan: Yes

Location

StateWashington
CountyPend Oreille
Nearest CityNorthport
River/StreamPend Oreille River
Coordinates48.98700, -117.34820

Physical Characteristics

Dam TypeConcrete
NID Height360 ft
Dam Height340 ft
Dam Length740 ft
Year Completed1967 (59 years old)

Storage & Hydraulics

NID Storage95,000 acre-ft
Max Storage95,000 acre-ft
Normal Storage95,000 acre-ft
Surface Area1,668 acres
Drainage Area25,200 sq mi
Max Discharge360,000 cfs
Spillway TypeControlled

Ownership & Safety

PurposeHydroelectric
OwnerCity of Seattle
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection05/24/2022
Emergency Action PlanYes

Identifiers

NID IDWA00009
Federal IDWA00009
More InfoState Dam Safety Program

Nearby Dams