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King County Washington home

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. 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 restricted to construction during the posted hours. Please follow the parking sign instructions.

Project update

August 2026

Sewer work continues overnight on August 4 until August 5

Crews are repairing sewer pipes near the northeast corner of Lowman Beach Park and along Beach Drive SW.

On August 4, crews will continue the pipe work overnight until Wednesday, August 5. Crews will also stage trucks and equipment on Beach Drive SW for the pipe repair. Flaggers will direct traffic while this work takes place.

For more information, check out our latest email update: Sewer work continues near Lowman Beach Park.

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Project location

Translations

Español (Spanish)

Public Engagement

Date: Wednesday, July 15, 2026

Time: 7 pm to 8 pm

Location: Zoom virtual meeting

Event Summary

The Murray Force Main Rehabilitation Project team attended the Morgan Community Association’s (MoCA) July 15 meeting via Zoom to provide a briefing on the project and respond to questions about restoration plans at Lowman Beach Park.

Presentation

Outreach Events

Dates:

Monday, April 6, 2026, 3 to 6 pm

Friday, April 10, 2026, 11 am to 2 pm

Sunday, April 12, 2026, 3 to 6 pm

Location: Lowman Beach Park

Event summary

The project outreach team hosted three drop-in sessions at Lowman Beach Park to introduce the project to interested community members and answer construction questions.