The collision blocked 2 westbound lanes of I-90 from about 3:40pm to 6:30pm yesterday.
30 minutes after the collision, medics and rescue crews were were still working to remove drivers and passengers from vehicles. 6 people were transported to Harborview Medical Center, none had serious injuries.
A pickup involved in the accident spilled about 20 gallons of paint on the roadway and a storm drain. The Department of Ecology is looking into the spilled paint.