SR20 the North Cascades Highway is closed for the season
SR 20 - North Cascades Highway
Last Update: 11:02 a.m., Nov. 16, 2020: Closed for season
The North Cascades Highway closed Friday, Nov. 13 due to heavy snowfall and risk of avalanche. Due to the risk of avalanche and forecasted snow, crews have determined to keep the pass closed for the season. The closure is in place between milepost 134, east of Diablo Lake, and milepost 171 at Silver Star Gate.
Overview
State Route 20 is the northernmost route across the Cascade Mountain Range in Washington and is commonly referred to as the North Cascades Highway. This scenic byway offers travelers a wide array of beautiful vistas and is part of the Cascade Loop, a 400-mile driving tour through the Cascades.
Why we close the highway in winter
We close the North Cascades when weather, snow conditions and avalanche danger threaten the safety of drivers and our maintenance crews. Avalanches typically close the highway between late November and mid December.
Reopening in the spring is usually accomplished by early May.
https://wsdot.wa.gov/travel/highways-bridges/passes/north-cascades-highway/home
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