Conner Jarvis East Pond

Conner Jarvis East Pond is an earth dam located in King County, Washington, built in 2018. It carries a Significant hazard potential classification and has a satisfactory condition assessment.

About Conner Jarvis East Pond

The primary purpose of Conner Jarvis East Pond is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Sammamish City Public Works (local government).

The dam stands 11 feet tall and stretches 1,230 feet across, has a maximum storage capacity of 14 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2018, 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 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 06/21/2023.

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Significant HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateWashington
CountyKing
Coordinates47.57385, -122.02430

Physical Characteristics

Dam TypeEarth
NID Height11 ft
Dam Length1,230 ft
Year Completed2018 (8 years old)

Storage & Hydraulics

NID Storage14 acre-ft
Max Storage14 acre-ft
Normal Storage7 acre-ft
Drainage Area0 sq mi

Ownership & Safety

PurposeFlood Risk Reduction
OwnerSammamish City Public Works
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection06/21/2023
Emergency Action PlanYes

Identifiers

NID IDWA02062
Federal IDWA02062
More InfoState Dam Safety Program

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