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King Street Center
201 S. Jackson St., Suite 500
Seattle, WA 98104-3855
Phone: 206-684-1280
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Puget Sound shoreline next to the West Point Treatment Plant, Seattle

Kent-Auburn conveyance system improvement

Project Overview

Project area

Kent-Auburn Planning AreaThese projects involve pipeline improvements in two areas: the Auburn planning area, which includes the cities of Auburn, Algona and Pacific; and the Kent planning area.

Click on the map (right) for an overview of the project areas, moving from north to south.

Project Phases

There are four individual projects in south King County that will be built in two phases: Phase A and Phase B. Recent engineering work has focused on pipe segments that need additional capacity and the phasing of those projects was created based on capacity needs.

Phase A projects

Phase A projects consist of two new pipelines:

  • Stuck River Trunk in Auburn
  • Kent East Hill Diversion in Kent

These pipelines are currently being designed. Construction will begin in 2012, and the pipelines will be in service in 2013.

Phase B projects

Phase B projects consist of two new pipelines:

  • Pacific Pump Station Discharge in Pacific and Algona
  • Auburn West Interceptor Parallel in Auburn

Construction of these pipelines is presently anticipated to start in 2014. These pipelines will be in service in 2015.

Anticipated schedule

Phase A projects

  • Alignment alternative selection and predesign: Summer 2008
  • Environmental review: Summer 2008 to Fall 2009
  • Design and permitting: Summer 2008 - Winter 2009
  • Construction: delayed until 2012 due to budget constraints

Phase B projects

  • Alignment alternative selection and predesign: Summer 2008
  • Design,easement acquisitions, environmental review and permitting: continue at a reduced pace
  • Construction: anticipated to begin in 2014
  • Pipeline in service: 2015

 

 

 

Your comments and ideas are welcome

King County is committed to being a good neighbor and welcomes your comments. Throughout the project, the county will work directly with the cities of Kent, Auburn, Algona and Pacific and the public to ensure that suggestions and concerns are addressed.

As the design is further developed, the county will work with local jurisdictions, key stakeholders and the public to identify potential community and environmental impacts-and ways to minimize them. This work will continue during environmental review, permitting, construction, and long-term operations and maintenance of the facilities.

More information