UPDATE | JULY 10, 2016, 4:50PM
WSDOT said all I-90 eastbound lanes at mileposts 47 and 76 were back open. They said rivers should expect to see delays until the backed up traffic starts to clear out.
A serious injury, multiple car collision had all eastbound lanes of I-90 closed near Easton, about six miles west of Cle Elum, around 1:30PM, Sunday, July 10, 2016.
According to the Washington State Patrol (WSP) Twitter feed, the collision involved three vehicles and resulted in serious injuries and one confirmed 
fatality. Fire, aid, DOT and WSP all responded to the scene.
The bad accident quickly produced a long backup and forced an initial eastbound I-90 closure at exit 34 near North Bend.
Around 3PM, WSP reopened one lane and pushed the eastbound closure point up to exit 47 at Denny Creek, but said the backup was estimated to be 12 miles.
WSDOT warned drivers to expect up to a one hour delay and couldn’t offer an ETA for the reopening of all eastbound lanes.
As of 4PM, the drive between North Bend and Ellensburg was approximately 155 minutes when it usually takes 78 minutes with normal traffic.
According to one North Bend resident, as of 4:15PM the eastbound backup stretched to exit 32 in North Bend and was also impacting downtown North Bend streets.
This story will be updated as more information becomes available.
