Rio Mount Dam

Low Hazard ConditionEmergency Action Plan: Not Required

Location

StateWashington
CountySnohomish
River/StreamTr-Stillaguamish River
Coordinates48.20347, -122.19937

Physical Characteristics

Dam TypeEarth
NID Height22 ft
Dam Length300 ft
Year Completed1979 (47 years old)

Storage & Hydraulics

NID Storage60 acre-ft
Max Storage60 acre-ft
Normal Storage25 acre-ft
Surface Area25 acres
Drainage Area1 sq mi
Max Discharge80 cfs

Ownership & Safety

PurposeRecreation
OwnerHoaHau
Owner TypePrivate
Hazard ClassificationLow
Emergency Action PlanNot Required

Identifiers

NID IDWA01328
Federal IDWA01328
More InfoState Dam Safety Program

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