Skip to main content
Most King County offices will be closed on Monday, May 28, for Memorial Day.  
King County logo

Project update

May 23, 2018

Thank you to all the people who stopped by and talked with the project team on Bike Everywhere Day (May 18)!  Please read the attached summary to learn more.

May 15, 2018

A SEPA Determination of Nonsignificance (DNS) is being issued on May 15, 2018 by the King County Wastewater Treatment Division for the North Mercer/Enatai Interceptor Inspection. View document and provide comments by June 1, 2018.

A SEPA determination for the entire project will be issued later this year.

Sign up for email or text updates

To sign up for text alerts, text KING MERCERSEWER to 468-311 for Mercer Island, and KING ENATAISEWER to 468-311 for Enatai. To sign up for email updates, please visit the public involvement page.

phases_graphic_construction

Contact us

Contact Kristine Cramer, community services lead at:

 kristine.cramer
@kingcounty.gov

 206-477-5415
 Feedback form

Project description

With over 400 miles of pipes moving wastewater to one of our award-winning treatment plants, King County WTD works hard to maintain our system. We inspect and monitor our regional system and update plans for needed upgrades.

King County WTD needs to replace sewer pipes that serve areas in North Mercer Island, the southwest portion of Bellevue near Enatai Beach, and the Town of Beaux Arts Village . This pipeline carries wastewater from the North Mercer Island Pump Station to the Sweyolocken Pump Station in Bellevue.

1701_NME-final-pipeline-route_700View larger version. July 2017

Schedule

Project design will begin in 2016. Construction is expected to begin in 2019 and extend until 2022.

Project TimelineClick to view larger version .

Project location

nmercer_enatai_SC_400

Back to the capital projects overview map .

Related information

Regional Wastewater Services Plan

Local municipalities: