WSDOT NE 85th St / I-405 Interchange and Inline BRT Station Project

• Project typeWSDOT I-405 Interchange Reconstruction
• Project scheduleNow thru Winter 2027

I-405/Northeast 85th Street Interchange and Inline BRT Station Project

WSDOT, Sound Transit, and design-build contractor Graham Contracting, Ltd. are working to reconstruct and improve the I-405/Northeast 85th Street interchange. This project design supports Sound Transit's Stride Bus Rapid Transit (BRT), improves transit connections on Northeast 85th Street, and provides direct access to the I-405 Express Toll Lanes (ETLs).

All information for this project, including closures and public meetings, can be found on the WSDOT project webpage. 

This page will be updated as information comes available. 

We appreciate your patience as WSDOT works towards creating a better and safer Northeast 85th Interchange for all travelers, regardless of how they travel.

Update as of 2:10 p.m. on April 15, 2024

NE 87th Street will be closed for a water vault and waterline installation. The closure will be along NE 87th St and 116th Ave NE between 114th Ave NE and NE 88th St (reference map below). 

Resident access, as well as access of vital services such as emergency vehicle responses, deliveries, garbage service, etc., will be maintained by the contractor during the closure.

The full closure of NE 87th Street is currently scheduled for April 12 through May 5.

• Installation of a new 24-inch watermain down the center of NE 87th Street
• Installation of a new water vault at the corner of NE 87th St and 116th Ave NE

The map below shows both the closure and detour routes.  The closure is the solid orange line. The detour route is the dashed green line.

To ensure that there’s enough space for two lanes of traffic along the detour, the contractor will place 24/7 temporary “no parking” signs for the duration of the closure along the detour:

• South side of NE 88th St from 114th Ave NE to 116th Ave NE
• East side of 114th Ave NE from NE 87th St to NE 88th St

Weekly Updates

Each week, WSDOT updates the project page with the latest ramp and lane closures, as well as upcoming nightwork. For the most up to date information, visit https://bit.ly/85th-Interchange-BRT

Traffic changes to area

Summary of traffic changes

• Eastbound vehicular traffic on Northeast 85th Street will now be able to turn left onto the northbound I-405 on-ramp.
• Vehicular traffic using the northbound I-405 off-ramp to Northeast 85th Street will now be able to turn left onto westbound Northeast 85th Street.
• Westbound traffic on Northeast 85th Street will now be able to turn left onto the southbound I-405 on-ramp.
• Vehicular traffic using the southbound I-405 off-ramp to Northeast 85th Street will now be able to turn left onto eastbound Northeast 85th Street.
• Pedestrian access shifted to the north side of Northeast 85th Street. 

Visit the WSDOT project webpage for more information and contact details for questions.