North Cascades Highway Closed for the Season

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North Cascades Highway (SR20) over Washington Pass is Closed for the season

As of Nov. 18, SR 20 North Cascades Highway is closed for the season between Ross Dam trailhead (milepost 134) on the west side and Silver Star gate on the east side (milepost 171) due to adverse conditions and avalanche risk.

Winter Closure Information

The North Cascades receive abundant snowfall each year, causing Highway 20 to close for the season in late fall/early winter, and reopen in spring, depending on conditions. The closure is from milepost 171 (west of Mazama) to milepost 134 (east of Diablo). This means our Loop becomes more of a crescent, and travelers should schedule accordingly.

Learn more at https://wsdot.com/travel/real-time/mountainpasses/north-cascade-hwy

Stevens Pass Road Alerts

Be sure to check the road conditions when traveling over Stevens Pass from the west side to the east side of the Cascade Loop:

https://wsdot.com/travel/real-time/mountainpasses/Stevens

Traffic Impacts and Road Advisories

The Washington State Department of Transportation (WSDOT) does an amazing job of keeping our roadways safe and well-maintained. They also are an essential partner in keeping us and our travelers informed about any accidents, closures, or other issues that can impact the normal flow of traffic. Be sure to check out your itinerary using the following resources before you head out!

Washington State Department of Transportation

Travel Alerts-REAL TIME MAP

WSDOT Resources

Traffic Alerts	Stevens Pass Road and Mountain Info	US2 Traffic Impacts	I5 Traffic Alerts	Estimated Travel Times
Anacortes Ferry Terminal	Clinton Ferry Terminal	Coupeville Ferry Terminal	Mukilteo Ferry Terminal	Winter Driving Tips