Ritzville Wastewater Lagoons

Ritzville Wastewater Lagoons is an earth dam located in Adams County, Washington, built in 2000. It carries a Significant hazard potential classification and has a fair condition assessment.

About Ritzville Wastewater Lagoons

Ritzville Wastewater Lagoons is a dam in Adams, Washington. The dam is owned by Ritzville City (local government). It impounds the Paha Creek near Lind.

The dam stands 9 feet tall and stretches 5,000 feet across, creates a reservoir covering 14 acres, and has a maximum storage capacity of 395 acre-feet. Completed in 2000, the structure is 26 years old.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 09/23/2021.

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Significant HazardFair ConditionEmergency Action Plan: Yes

Location

StateWashington
CountyAdams
Nearest CityLind
River/StreamPaha Creek
Coordinates47.12132, -118.40555

Physical Characteristics

Dam TypeEarth
NID Height9 ft
Dam Length5,000 ft
Year Completed2000 (26 years old)

Storage & Hydraulics

NID Storage395 acre-ft
Max Storage395 acre-ft
Normal Storage302 acre-ft
Surface Area14 acres
Max Discharge3 cfs

Ownership & Safety

PurposeOther
OwnerRitzville City
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection09/23/2021
Emergency Action PlanYes

Identifiers

NID IDWA01812
Federal IDWA01812
More InfoState Dam Safety Program

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