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Murray Force Main Rehabilitation
The Murray Force Main Rehabilitation project will rebuild a section of a pressurized sewer pipe called a force main to maintain reliable service to West Seattle residents living near Lowman Beach Park.
Project description
King County is rebuilding a damaged sewer pipe to maintain reliable sewer service for West Seattle residents near Lowman Beach Park and protect public health and Puget Sound.
The Murray Pump Station has two pressurized sewer pipes, also known as force mains. These pipes run parallel under Beach Drive Southwest and help move sewage to West Point Treatment Plant, where it is cleaned and safely discharged into Puget Sound. In March 2022, one of the pressurized pipes broke due to severe corrosion. King County repaired about 800 feet of the damaged pipe at that time. This project will repair the remaining 350 feet of damaged pipe and install two air valves to help reduce pipe corrosion in the repaired pipe.
This work needs to occur during the dry season when wastewater flows are lower. Construction will take about six weeks to complete. Road and park restoration will occur in fall 2026 after the pipe is rebuilt.
What to expect during construction:
- No interruption to wastewater service.
- One-lane alternating traffic on Beach Drive SW, with steel plates in the road. Bicyclists should use extreme caution passing through the work area.
- Lowman Beach Park playground, beach and sidewalks will remain open during construction.
- Typical construction noise near work areas.
- Street parking is not allowed during the posted hours. Please follow the parking sign instructions.
Project update
April 2026
Construction near Lowman Beach Park begins in May
Phase 2 of King County’s Murray Force Main Rehabilitation project starts as early as this May. The project ensures reliable wastewater service for West Seattle residents. Crews will line a section of a pressurized sewer pipe called a “force main.” We will also replace the valves at Murray Pump Station. This work must take place during the dry season to avoid service disruptions. Road and park restoration will occur in fall 2026 after work is complete.
Check out our recent notification for more details on what you can expect during construction.
Take our community survey for construction
We understand construction can be disruptive, and we want to be a good neighbor. We invite you to take our community survey. It will help us understand how to best support you during construction.
- Survey is now open through April 24.
- All questions are optional.
- No personal identifying information needed.
- If you prefer to fill out a printed copy or provide your responses by phone, please contact our project team by 206-263-9237 or email mkuo@kingcounty.gov.
Take the community survey for construction
(Spanish) Encuesta comunitaria para la construcción
Stay informed
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