Youngs Lake Cascades Dam

Washington — King County — Tr-Cedar River

Location

StateWashington
CountyKing
RiverTr-Cedar River
Coordinates47.41957, -122.10876

Physical Characteristics

NID Height16 ft
Dam Height
Dam Length1,425 ft
NID Storage35,450 acre-ft
Max Storage35,450 acre-ft
Surface Area690 acres

Safety Classification

Hazard PotentialSignificant
Condition AssessmentSatisfactory
EAP StatusYes
Last InspectionJune 2, 2024
Inspection Frequency5

Dam Information

Year Completed1950
Primary PurposeWater Supply
Dam TypeEarth
Owner TypeLocal Government
OwnerSeattle Public Utilities
Other NameInlet Dam

Location Map

About This Dam Record

Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.

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