Sammamish Plateau Diversion

Project update

October 31, 2024

On Monday, October 23, King County’s contractors completed field work along East Lake Sammamish Parkway Northeast. Lane closures have ended, and no further traffic disruptions are expected at this time.

There may be brief closures in the future as crews periodically visit these sites to monitor conditions. If closures are needed, we will send listserv notifications and update this website with details about the work.

We appreciate your patience and understanding as we completed this important phase of the project.

We want to hear from you!

King County’s project team wants to get to know you and your community better. By understanding your needs, we can serve you more effectively during the design and construction phases of this project. Please share your feedback with us by completing this survey by mid-December. We expect that this survey will take about 10 minutes to complete.

We have two different surveys: one for community members and one for local businesses. If you are both a community member and a local business owner in the project area along East Lake Sammamish Parkway Northeast (see map below), please fill out both surveys.

• Community members: publicinput.com/kcwtdsammcomsurvey
• Businesses: publicinput.com/kcwtdsammbussurvey

If you prefer to provide the information in the survey over the phone or by other means, please contact Monica Van der Vieren at 206-477-5502 or monica.vandervieren@kingcounty.gov.

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We welcome you to contact us at any time during the project to talk, ask questions, express concerns, and give feedback and input.