107-mile SR 410, also called the “Stephen Mather Memorial Parkway,” includes the Chinook Scenic Byway.
Chinook Pass is located on SR 410 between the towns of Enumclaw and Naches. Closes during the winter months due to snowfall from Crystal Mountain Boulevard, about 12 miles northwest of the summit to Morse Creek, five miles east of the summit.
For more information, check the Washington State Dept. of Transportation (WSDOT) or call 1-800-695-ROAD (7623) toll-free statewide or 206-DOT-HIWY (368-4499) in the greater Seattle area.
Commercial vehicles prohibited at all times.
WSDOT CURRENT CONDITIONS:
Historic Opening and Closing Dates (via WSDOT)
Photo Gallery of Clearing Work (via WSDOT Flickr)