WSDOT crews set up closure information then clear out the stretch of SR 20 highway between mileposts 134 and 171 before closing gates each season.

Tags:   North Cascades Highway SR 20 North Cascades aep Skagit County Whatcom County Okanogan County Chelan seasonal closure Winter Weather North Cascades National Park

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A view of one of the avalanche zones along SR 20 North Cascade Highway. Avalanche risk and keeping travelers and crews safe is why this highway closes in the winter.

Tags:   North Cascades Highway SR 20 North Cascades aep Skagit County Whatcom County Okanogan County Chelan seasonal closure Winter Weather North Cascades National Park

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Total snow in one area along SR 20 North Cascades Highway on Monday, Nov. 21, 2016 - the day the highway was closed for the season.

Tags:   North Cascades Highway SR 20 North Cascades aep Skagit County Whatcom County Okanogan County Chelan seasonal closure Winter Weather North Cascades National Park

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WSDOT crew member, Brandon, checking on snow levels.

Tags:   North Cascades Highway SR 20 North Cascades aep Skagit County Whatcom County Okanogan County Chelan seasonal closure Winter Weather North Cascades National Park

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Fog in the valley along the SR 20 North Cascades Highway in mid-November 2016.

Tags:   North Cascades Highway SR 20 North Cascades aep Skagit County Whatcom County Okanogan County Chelan seasonal closure Winter Weather North Cascades National Park

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