Update: I-90 westbound has reopened near Ellensburg after crews cleared a semi-truck collision.
FINAL: I-90 westbound near Ellensburg is open.— I-90 Snoqualmie Pass (@SnoqualmiePass) January 14, 2020
* Hats off to the crew that has been working hard since 6 a.m. to remove this tangled semi truck from the highway.
* Chains required except AWD/4WD.
* Currently, 30 minutes of added travel time. pic.twitter.com/fCwGS1Ayfx
Previous coverage: ELLENSBURG, Wash. - I-90 westbound is closed near Ellensburg due to multiple collisions within about a 16-mile stretch Tuesday morning.
Washington State Patrol Trooper John Bryant said the blocking collision at milepost 90 has led to the closure at milepost 106 near Ellensburg.
An estimated time for reopening is unknown. Delays should be expected.
UPDATE: This is why we are closed WB at Ellensburg at milepost 106. We are hoping to get more information on a reopening time soon. It's going to be another challenging day of travel across I-90 and the pass. Please slow down and take your time today. pic.twitter.com/rdId117KeJ— I-90 Snoqualmie Pass (@SnoqualmiePass) January 14, 2020
An alternate route is available from US-97 to SR-970 through Cle Elum.
Bryant says there is an additional collision on westbound I-90 at milepost 101 and roadways are snowpacked and icy.
"Alternate route may not be much better so take it slow or wait it out until daylight and improved road conditions," Bryant said on Twitter.