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.
Affected trucks include model year 2008-2018 Freightliner Cascadia and Western Star 4700, 4900, 5700 and 6900 trucks. DTNA says after hard brake applications, the brake light pressure switch may not activate the brake lights with the light application of the brake pedal.