Update: June 13
State Route123/Cayuse pass opened May 27. State Route 410/Chinook Pass opened June 10.
MOUNT RAINIER – State Route123/Cayuse pass is open as of 8 a.m. Friday, May 27, in time for Memorial Day weekend. State Route 410/Chinook Pass opened June 10.
Mount Rainier National Park
Check Mount Rainier National Park, road status for the most current travel information.
Winter closures
Cayuse and Chinook passes close each winter due to high avalanche risk, poor road conditions, and no emergency response services within close proximity. Both highways closed to vehicle traffic for the season on Nov. 18, 2021. WSDOT and the National Park Service collaborate each spring to reopen the highways.