Westbound Highway 12 over White Pass is open after a semi rollover closed it for about an hour.
The crash happened at 11 a.m. Friday about five miles west of the summit, the state Department of Transportation said.
First responders got the rolled semi off to the shoulder and cleared the lane, officials said.
The closure marks the third highway shutdown within a day. Interstate 90 remains partially closed near Kittitas because of wildfire.
And Highway 24 is closed near the Vernita bridge, also because of another fire.
Check back for updates.