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Project updates

See construction page for summary of work to date on the project.

As of January 2019, the pipeline work and most of the restoration on the project is done. Work is continuing at the Pacific Pump Station and is expected to be done in late-February 2019.

Kiewit Infrastructure West is the contractor for this project. Work is underway in Pacific, Algona and Auburn.

You can contact the project team with questions or concerns at 206-263-9453.

Sign up for project updates to stay informed about construction activities.

See the project library page for a list of all notices and other project materials.

Project description

Since 2008, King County Wastewater Treatment Division has been working to improve the wastewater system in southeast King County. In 2014, the County completed two new pipelines in Kent and Auburn (See Phase A info here).

We are now constructing the second phase of the project, including building 14,000 feet of new sewer line in Pacific, Algona, and Auburn, and making upgrades to the Pacific Pump Station.

Why is King County making these improvements?

  • To protect public health and the environment
  • To continue to provide safe, reliable sewer service as the area grows
  • To provide enough capacity to transport wastewater through 2060 in the project area

Project area

Project schedule

  • Construction started in spring 2017 and is expected to last for two years.
  • To see when work is expected to take place in your area and how long work will last, review our construction map.
  • Sign up for updates and we’ll keep you informed about the project schedule and activities!


Contact us

Call or email David Freed, community services lead:

Stay informed

Sign up for project email or text updates (or manage your subscriptions).

Project location


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