All traffic on eastbound I-90 shifts to express lanes overnight Friday

All traffic heading to the Eastside from Seattle on Interstate 90 after 11:30 p.m. Friday, Feb. 21, will be diverted to the center roadway express lanes from west of the Mount Baker Tunnel across Mercer Island. The Rainier Avenue on-ramp to eastbound I-90 will be closed as well.

All lanes will reopen by 7 a.m. Saturday.

Access to Mercer Island from the eastbound I-90 express lanes is available at 77th Avenue Southeast and Island Crest Way.

The traffic diversion is necessary for the Washington State Department of Transportation conduct follow-up testing of new technology to upgrade smoke and fire detection, response and safety inside the I-90 tunnels. WSDOT contractor crews will set small, controlled fires in the Mt Baker Tunnel to test a new video-detection system. The fires, set in metal pans up to 4 feet long, will not be visible to traffic. The work is part of the final stage of the I-90 Two-Way Transit and HOV Operations project.

We encourage an open exchange of ideas on this story's topic, but we ask you to follow our guidelines for respecting community standards. Personal attacks, inappropriate language, and off-topic comments may be removed, and comment privileges revoked, per our Terms of Use. Please see our FAQ if you have questions or concerns about using Facebook to comment.

Read the Oct 21
Green Edition

Browse the print edition page by page, including stories and ads.

Browse the archives.

Friends to Follow

View All Updates