Eastbound I-90 open again in Seattle after motorhome fire
May 12, 2025, 1:31 PM | Updated: 7:38 pm

A large motorhome fire closed all eastbound lanes on Interstate 90 in Seattle, specifically within the Mt. Baker Tunnel. (Photo Provided by WSDOT)
(Photo Provided by WSDOT)
I-90 re-opened around 7 pm Monday after being closed for several hours after a large motorhome fire in Seattle’s Mt. Baker Tunnel.
FINAL UPDATE CLEAR! EB I-90 NEAR RAINIER AVE IN SEATTLE HAS REOPENED
Thanks for your cooperation while crews were performing inspections after the collision. Large incidents like this take coordination and work from several teams/agencies to reopen the road.
— WSDOT Traffic (@wsdot_traffic)
The fire started when a car and a motorhome crashed, according to the Washington State Department of Transportation (WSDOT). The Washington State Patrol (WSP) said there were no injuries.
Footage from cameras inside the tunnel showed massive flames and thick smoke filling the overhead space.