Temporary waterline installation nearing completion at Interbay Pump Station

King County, Washington sent this bulletin at 03/20/2025 04:22 PM PDT
header

March 2025

Temporary waterline installation nearing completion at Interbay Pump Station

As part of ongoing construction near the Interbay Pump Station, crews are finalizing the installation and testing of a new temporary 12-inch waterline to carry fresh water. The temporary waterline restraint has already been poured, and Seattle Public Utilities (SPU) plans to be on-site on March 25th to tie-in the temporary line.

The purpose of the temporary waterline bypass pipe is to carry fresh water while crews work to relocate and install a new permanent water main. 

SPU reports that they will give customers at least five days' advance notice before any potential water outage affecting them.

Click here to see a map of the work area.

A construction worker stands near a vacuum truck which is working in a hole that has been dug for construction purposes.

Crews use a vacuum truck to prep the site for the waterline relocation

What to expect

  • Road Closure: West Garfield Street will be closed at the following times to allow crews to complete work safely. 
    • 7 a.m. to 5 p.m., Monday through Thursday. 
    • 24 hours, Friday through Sunday. 
  • Parking Impacts: Parking availability may be limited during this work. Please note that access to dumpsters will remain open for businesses and delivery access will be maintained.
  • Equipment and Service Vehicles: Expect construction vehicles and service trucks in the area.
  • Approved work hours are 6 a.m. to 5 p.m. Monday through Thursday.
    • We will provide advance notice of any weekend or after-hours work.
  • Noise, dust, and vibrations typical of an active construction project.
  • Construction schedules can change due to site conditions, weather, and material availability. Please visit our project website for updates.

During construction, access will be maintained for all emergency vehicles, garbage, recycling, composting, and mail services. If services are interrupted, please call the project hotline at 425-595-3452.

Please watch for equipment and crews in the area, maintain slow speeds to stay safe, and follow directions from crews.

For more information and project updates:

Los servicios de interpretación y traducción están disponibles para usted sin costo alguno. Si los necesita, comuníquese con Interbaysewer@kingcounty.gov, 425-595-3452.