Snowfall prompts temporary closure of North Cascades Highway

North Cascades Highway will close temporarily at 5 p. m. on Nov. 13 due to snowfall, affecting the stretch between Ross Dam Trailhead (milepost 134) and Silver Star gate (milepost 171). Maintenance and avalanche crews will reassess conditions on Nov.

17 to determine the potential for reopening. The reopening is not guaranteed and will depend on several factors, including snowpack levels and winter maintenance needs. Historical data shows that the earliest closure occurred on Oct. 17, 2003, and the route was closed for the season on Nov. 18, 2024.

This seasonal closure highlights the challenges of maintaining safety in mountainous regions during winter. Road closure updates will be posted on the real-time travel map and the WSDOT blog. Local travelers should stay informed about conditions, as weather changes can impact access to the area. Understanding how crews evaluate closures is crucial for residents and visitors alike.