Othello Primary Treatment Pond 1a

Othello Primary Treatment Pond 1a is an earth dam located in Adams County, Washington, built in 1982. It carries a Low hazard potential classification.

About Othello Primary Treatment Pond 1a

Othello Primary Treatment Pond 1a is a dam in Adams, Washington. The dam is owned by Othello City (local government). It impounds the Tr-crab Creek-offstream near Corfu.

The dam stands 27 feet tall and stretches 2,250 feet across, creates a reservoir covering 115 acres, has a maximum storage capacity of 200 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1982, the structure is 44 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
CountyAdams
Nearest CityCorfu
River/StreamTr-crab Creek-offstream
Coordinates46.82608, -119.22481

Physical Characteristics

Dam TypeEarth
NID Height27 ft
Dam Length2,250 ft
Year Completed1982 (44 years old)

Storage & Hydraulics

NID Storage200 acre-ft
Max Storage200 acre-ft
Normal Storage115 acre-ft
Surface Area115 acres
Drainage Area0 sq mi
Max Discharge6 cfs

Ownership & Safety

PurposeOther
OwnerOthello City
Owner TypeLocal Government
Hazard ClassificationLow
Emergency Action PlanNot Required

Identifiers

NID IDWA00470
Federal IDWA00470
More InfoState Dam Safety Program

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