Tree Top Selah Wastewater Lagoon

Tree Top Selah Wastewater Lagoon is an earth dam located in Yakima County, Washington, built in 1991. It carries a Low hazard potential classification.

About Tree Top Selah Wastewater Lagoon

Tree Top Selah Wastewater Lagoon is a dam in Yakima, Washington. The dam is owned by Tree Top Inc (private). It impounds the Tr-yakima River.

The dam stands 15 feet tall and stretches 3,317 feet across, creates a reservoir covering 168 acres, has a maximum storage capacity of 210 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1991, the structure is 35 years old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.

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Low Hazard ConditionEmergency Action Plan: Not Required

Location

StateWashington
CountyYakima
River/StreamTr-yakima River
Coordinates46.67148, -120.49631

Physical Characteristics

Dam TypeEarth
NID Height15 ft
Dam Length3,317 ft
Year Completed1991 (35 years old)

Storage & Hydraulics

NID Storage210 acre-ft
Max Storage210 acre-ft
Normal Storage168 acre-ft
Surface Area168 acres
Drainage Area0 sq mi
Max Discharge9 cfs

Ownership & Safety

PurposeOther
OwnerTree Top Inc
Owner TypePrivate
Hazard ClassificationLow
Emergency Action PlanNot Required

Identifiers

NID IDWA01708
Federal IDWA01708
More InfoState Dam Safety Program

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