SR 20 Both Directions - On SR 20, North Cascades Highway is closed for the season beginning December 11 at 6 a.m. On SR 20, the North Cascades Highway will close for the season starting at 6 a.m. on December 11. The closure points start at milepost 134/Ross Dam Trailhead and at milepost 171/Silver Star Gate. When significant snow begins to fall, WSDOT crews will move the western closure point back to milepost 130/Colonial Creek Campground and the eastern closure point to milepost 177/Early Winters Campground.
Last Updated: 12/10/2019 5:11 PM
From milepost 134 to milepost 171
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WSDOT