Come talk with us at Bike Everywhere Day on May 13!

An aerial image of Lake Sammamish, boat docks lining the lake, and its evergreen tree-covered shoreline.

May 2026

Visit us at Bike Everywhere Day on Wednesday, May 13 from 7 to 10 a.m.! 

Take a quick break from your morning commute or ride and chat with us about how the Sammamish Plateau Diversion Project supports reliable wastewater services in the area! Our project team will host a station as a part of Cascade Bicycle Club’s Bike Everywhere Day event.

We want to hear from you! Stop by our station to learn about the project and share what’s important to you about this area. We’ll be on the north end of the East Lake Sammamish Trail near the Whole Foods in Redmond. 

Sammamish Plateau Diversion Project station information 

  • Date: Wednesday, May 13 
  • Time: 7 to 10 a.m. 
  • Location: North end of the East Lake Sammamish Trail, near the Whole Foods, Les Schwab, and public trail parking lot in Redmond.  
A satellite image of the East Lake Sammamish Trail section between the Redmond Whole Foods and Les Schwab.

This map shows the approximate location where the project team will host a Celebration Station for Bike Everywhere Day. This is the area in the yellow box. We’ll be along the East Lake Sammamish Trail near Whole Foods in Redmond.

Find other Celebration Stations and learn more about Cascade Bicycle Club events on their Bike Everywhere Month 2026 webpage. 

We look forward to talking with you soon! 


Survey work continues in the project corridor 

Project crews continue collecting survey data along the project corridor. This information will help inform the pipe location within the corridor and construction methods. To learn more about the project corridor, visit the project’s Online Open House and click on the “Project Corridor” tab. 

Marking utilities along East Lake Sammamish Parkway Northeast 

Crews continue to survey utilities along the shoulder of the East Lake Sammamish Parkway NE. Crews are working in an area south of Weber Point. They are moving south toward Northeast Inglewood Hill Road.   

What to expect:  

  • Crews working along the shoulder along the East Lake Sammamish Parkway NE
  • No traffic impacts 
  • Work hours Monday through Friday, 7 a.m. to 3:30 p.m. 

Please look out for survey crews and drive or bike carefully in the area. 

Satellite aerial map of East Lake Sammamish Parkway Northeast between Weber Point and NE Inglewood Hill Road showing the survey area.

This map shows the approximate location of current and upcoming survey work along the shoulder on East Lake Sammamish Parkway NE. This is the area on the parkway in the yellow box. Crews are working their way south.

Locating underground utilities on specific Saturday mornings 

There will be occasional survey work in the roadway to locate underground utilities. This work will take place on specific Saturday mornings between 6 and 9 a.m. to reduce traffic impacts. We will notify the community in advance of Saturday work and provide more detail on what to expect.  

Surveying trees 

Crews will be surveying and assessing larger trees along the project corridor. You may see numbered tags on some trees. Tags help in assessment and do not mean future impacts to the trees. The project team will work with property owners as needed to access trees. Tree surveys will not impact traffic. 

A photo of a circular silver tree survey tag on a tree trunk

An example of an identification tag you might see on some trees in the project area.


We're here for you!

We know that large construction projects can be stressful for communities, and there are a lot of construction projects going on across the Eastside. Our project team is committed to being available and continuing to work with neighbors, businesses, visitors, and commuters every step of the way. We will be here for you all the way through design and construction and into operations. Feel free to contact us at any time!

Contact us:

Emily Berry, Community Services Lead

SammamishPlateauDiversionProject@kingcounty.gov, 425-537-7216

Visit our project website at kingcounty.gov/SammamishPlateauDiversion