SR 410/Chinook and SR 123/Cayuse passes are open

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.

Slow down – lives are on the line. 

In 2023, speeding continued to be a top reason for work zone crashes.

Even one life lost is too many.

Fatal work zone crashes doubled in 2023 - Washington had 10 fatal work zone crashes on state roads.

It's in EVERYONE’S best interest.

95% of people hurt in work zones are drivers, their passengers or passing pedestrians, not just our road crews.