Survey work on East Lake Sammamish Parkway Northeast in Redmond

King County, Washington sent this bulletin at 05/21/2025 02:46 PM PDT
An aerial image of Lake Sammamish, boat docks lining the lake, and its evergreen tree-covered shoreline.

May 2025  

Survey work happening on East Lake Sammamish Parkway Northeast in Redmond

The Sammamish Plateau Diversion Project team is continuing field investigations as we work to expand regional wastewater conveyance in the East Lake Sammamish area.

Starting as early as today, May 21, crews will survey the right-of-way (ROW) in the vicinity of King County’s existing sewer pipes. Surveyors will work on East Lake Sammamish Parkway Northeast and the East Lake Sammamish Trail between 187th Avenue Northeast and just north of Northeast 65th Street (see map below). During this work, surveyors will mark utilities with paint. Access to the roadway and trail will be maintained. Flaggers will direct traffic as needed.

This work is expected to take up to 8 weeks to complete.

Map of Right of Way work on East Lake Sammamish Parkway Northeast

The map on the left shows the entire project area in blue hatching with a blue inset box that shows the location of the survey work along the ROW. The map on the right shows a zoomed-in view of survey work within the blue inset box. This work is along the ROW on Northeast Inglewood Hill Road and the East Lake Sammamish Trail between 187th Avenue Northeast and just north of Northeast 65th Street.

What to Expect

  • Survey work will take place along the ROW between the hours of 6:30 a.m. and 3:30 p.m., Monday through Friday. 
  • Drivers may experience brief delays. 
    • Flaggers will be present to direct traffic between 10 a.m. and 3 p.m., Monday through Friday. Please use caution when traveling in the work area.
    • No full lane closures are expected, but lane shifts and brief stops may occur. Local and emergency access will be maintained, and school buses will be treated as emergency vehicles to minimize delays. 
  • Work will take place up to eight weeks. 
  • Traffic signs will be located on East Lake Sammamish Parkway Northeast and the East Lake Sammamish Trail to indicate that flaggers may be present to direct drivers and trail users.
  • Sidewalks and the East Lake Sammamish Trail will remain open. 

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

Monica Van der Vieren,Community Services Lead
Monica.VanDerVieren@kingcounty.gov, 206-477-5502
Visit us at kingcounty.gov/SammamishPlateauDiversion