Newcastle Vista Pond 3

Newcastle Vista Pond 3 is an earth dam located in King County, Washington, built in 2012. It carries a High hazard potential classification and has a fair condition assessment.

About Newcastle Vista Pond 3

The primary purpose of Newcastle Vista Pond 3 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 Newcastle City Public Works (local government).

The dam stands 11 feet tall and stretches 700 feet across, has a maximum storage capacity of 20 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2012, the structure is relatively new.

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 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 08/30/2018. That was 7 years ago, which is on the longer end for a high-hazard structure.

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 HazardFair ConditionEmergency Action Plan: Yes

Location

StateWashington
CountyKing
Nearest CityNewcastle
Coordinates47.53470, -122.16144

Physical Characteristics

Dam TypeEarth
NID Height11 ft
Dam Length700 ft
Year Completed2012 (14 years old)

Storage & Hydraulics

NID Storage20 acre-ft
Max Storage20 acre-ft
Normal Storage3 acre-ft
Drainage Area0 sq mi
Max Discharge870 cfs

Ownership & Safety

PurposeFlood Risk Reduction
OwnerNewcastle City Public Works
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection08/30/2018
Emergency Action PlanYes

Identifiers

NID IDWA01908
Federal IDWA01908
More InfoState Dam Safety Program

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