Loon Lake Storage Lagoon No 3

Loon Lake Storage Lagoon No 3 is an other dam located in Stevens County, Washington, built in 1998. It carries a High hazard potential classification and has a satisfactory condition assessment.

About Loon Lake Storage Lagoon No 3

Loon Lake Storage Lagoon No 3 is a dam in Stevens, Washington. The dam is owned by Loon Lake Sewer Dist No 4 (public utility). It impounds the Offstream.

The dam stands 13 feet tall and stretches 1,800 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 80 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1998, the structure is 28 years old.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 09/27/2022.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Washington dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateWashington
CountyStevens
River/StreamOffstream
Coordinates48.07016, -117.62316

Physical Characteristics

Dam TypeOther
NID Height13 ft
Dam Length1,800 ft
Year Completed1998 (28 years old)

Storage & Hydraulics

NID Storage663 acre-ft
Max Storage80 acre-ft
Normal Storage663 acre-ft
Surface Area6 acres
Drainage Area0 sq mi
Max Discharge5 cfs

Ownership & Safety

PurposeOther
OwnerLoon Lake Sewer Dist No 4
Owner TypePublic Utility
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection09/27/2022
Emergency Action PlanYes

Identifiers

NID IDWA00667
Federal IDWA00667
More InfoState Dam Safety Program

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