Truckers are facing delays of up to two hours on I-90 near Snoqualmie Pass east of Seattle as crews plan to expand the highway.
One lane is closed until 5 p.m. Friday for paving. Washington State Department of Transportation advised traveling before noon or after 9 p.m.
A five-mile stretch of I-90 is being widened from four to six lanes. The work is scheduled for completion in fall 2017.