05/14/2026
Hey, SR 410 Chinook Pass/SR 123 Cayuse Pass enthusiasts! You’ve been asking (and asking and asking), and here it is: Both roads through Mount Rainier National Park will reopen for the season by 8 a.m. Friday, May 22, in time for Memorial Day weekend!
Both passes close each winter due to snow levels and avalanche danger and reopen in the spring after snow is cleared. Our maintenance crews have finished clearing both highways, and the National Park Service is in the final phases of clearing Stevens Canyon Road and Sunrise Park Road.
As a reminder, all commercial vehicles are prohibited from traveling through Mount Rainier National Park, which includes sections of SR 123 and SR 410.
