Owhi

High HazardUnsatisfactory ConditionEmergency Action Plan: Yes

Location

StateWashington
CountyOkanogan
Nearest CityNespelem
River/StreamLittle Nespelem River
Coordinates48.22230, -118.89380

Physical Characteristics

Dam TypeEarth
NID Height12 ft
Dam Height12 ft
Dam Length150 ft
Year Completed1915 (111 years old)

Storage & Hydraulics

NID Storage23,033 acre-ft
Max Storage23,033 acre-ft
Normal Storage21,500 acre-ft
Surface Area499 acres
Drainage Area13 sq mi
Max Discharge198 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeIrrigation
OwnerBIA
Owner TypeFederal
Hazard ClassificationHigh
Condition AssessmentUnsatisfactory
Last Inspection10/14/2021
Emergency Action PlanYes

Identifiers

NID IDWA00278
Federal IDWA00278
More InfoState Dam Safety Program