State Route 20, also known as SR-20 or North Cascades Highway, is a State Highway (Route) in Washington. It travels from an intersection with U.S. Route 101 at Discovery Bay near Port Townsend to Newport at a junction with U.S. Route 2 about 400 feet (122 m) from the Idaho state line.

Route

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SR-20 begins in Discovery Bay, Washington at U.S. Route 101 and goes north to Port Townsend. It then takes a ferry into Island County. From Island County, the route continues into Skagit County, crosses the Cascade Mountains into Eastern Washington, and terminates in Newport, Washington near the Idaho border.

Oddities

SR-20 is one of only three State Routes in Washington that have portions closed in the winter (the others being State Route 410 and State Route 123). Washington Pass annually receives several feet of snow throughout the winter, and is prone to avalanches leaving over 20 feet of snow on the road.

Child routes

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• State Route 20 Spur (1973-present)
• State Route 20 Business (1973-present)

A possible future business route may be built in Oak Harbor when a bypass or viaduct of the city is built. Also, a future historic/alternate route at Deception Pass may be constructed when a new crossing is built.

History

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External links

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• Highways of Washington

Washington state highways