Little Falls Spillway Dam

Low HazardFair ConditionEmergency Action Plan: Yes

Location

StateWashington
CountyLincoln
Nearest CityPorcupine Bay
River/StreamSpokane River
Coordinates47.83254, -117.91684

Physical Characteristics

Dam TypeGravity
NID Height72 ft
Year Completed1910 (116 years old)

Storage & Hydraulics

NID Storage4,250 acre-ft
Max Storage4,250 acre-ft
Normal Storage4,250 acre-ft
Surface Area4,250 acres
Drainage Area5,844 sq mi
Max Discharge70,000 cfs

Ownership & Safety

PurposeHydroelectric
OwnerAvista Utilities
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection05/09/2019
Emergency Action PlanYes

Identifiers

NID IDWA00653
Federal IDWA00653
More InfoState Dam Safety Program

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