Fairfield Sewage Aerated Lagoon - Lagoon 1

Fairfield Sewage Aerated Lagoon - Lagoon 1 is an earth dam located in Spokane County, Washington, built in 2003. It carries a Significant hazard potential classification and has a fair condition assessment.

About Fairfield Sewage Aerated Lagoon - Lagoon 1

Fairfield Sewage Aerated Lagoon - Lagoon 1 is a dam in Spokane, Washington. The dam is owned by Fairfield City (local government).

The dam stands 13 feet tall and stretches 650 feet across, creates a reservoir covering 2 acres, and has a maximum storage capacity of 14 acre-feet. Completed in 2003, the structure is relatively new.

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 09/22/2021.

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Significant HazardFair ConditionEmergency Action Plan: Yes

Location

StateWashington
CountySpokane
Nearest CityNa
Coordinates47.39699, -117.17318

Physical Characteristics

Dam TypeEarth
NID Height13 ft
Dam Length650 ft
Year Completed2003 (23 years old)

Storage & Hydraulics

NID Storage14 acre-ft
Max Storage14 acre-ft
Normal Storage9 acre-ft
Surface Area2 acres

Ownership & Safety

PurposeOther
OwnerFairfield City
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection09/22/2021
Emergency Action PlanYes

Identifiers

NID IDWA01849
Federal IDWA01849
More InfoState Dam Safety Program

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