Route 20
RCW 47.17.080
Primary State Route
Length:	436.55 mi (702.55 km)
Formed:	1964
Major cities:	Port Townsend Oak Harbor Colville
Direction:	East-West
JUNCTION MILEPOST Jefferson County US 101 0 SR-19 10 Island County SR-525 14 Skagit County SR-20 Spur 30 SR-536 36 I-5 40 SR-9 45 50 Whatcom County Skagit County Chelan County Okanogan County SR-153 198 SR-215 227 US 97 227 256 SR-155 233 SR-215 233 Ferry County SR-21 296 299 US 395 336 348 Stevens County SR-25 339 Pend Oreille County SR-31 381 SR-211 412 US-2 436.55
Legend
Washington State Routes
< Route 19	Route 20_Business >

Washington State Route 20, Highway 20, SR-20, or The 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 US-2 about 400 feet from the Idaho state line. A mile is any of a number of units of distance, each in the magnitude of 1–10 km. ... A kilometre (American spelling: kilometer), symbol: km is a unit of length in the metric system equal to 1000 metres (from the Greek words χίλια (khilia) = thousand and μέτρο (metro) = count/measure). ... Port Townsend is a city located in Jefferson County, Washington. ... Oak Harbor is a city located on Whidbey Island in Island County, Washington. ... Colville is a city located in Stevens County, Washington. ... Jefferson County is a county located in the U.S. state of Washington and named after Thomas Jefferson. ... U.S. Highway 101, or U.S. Route 101 (U.S. 101), is a north-south highway that is aligned along the Pacific West Coast of the United States. ... Image File history File links US_101. ... Island County is a county located in the state of Washington. ... Washington State Route 525, commonly known as SR-525, WA-525, or Highway 525, is a highway in the state of Washington, U.S.A. It extends almost 31 miles from Lynnwood in the east to an area near Keystone in the west, not counting a portion that is carried... Skagit County is a county located in the state of Washington. ... Interstate 5 (abbreviated I-5) is the westernmost interstate highway in the United States. ... Image File history File links Interstate_5. ... Legend Washington State Routes < Route 8 Route 10 > Washington State Route 9 is a highway in the state of Washington, U.S.A. It extends from just north of Woodinville in the Puget Sound region to the Canadian border at Sumas, a distance of about 98 miles. ... Whatcom County (IPA: ) is a county located in the U.S. state of Washington. ... Skagit County is a county located in the state of Washington. ... Chelan County is a county located in the state of Washington. ... Okanogan County is a county located in the state of Washington. ... United States Highway 97 is a major north-south United States highway in the western United States. ... Image File history File links US_97. ... Ferry County is a county located in the state of Washington. ... MAJOR JUNCTIONS JUNCTION POSTMILE I-15 CA SBD 0. ... Image File history File links US_395. ... Stevens County is a county located in the state of Washington. ... Pend Oreille County is a county located in the state of Washington. ... JUNCTION MILEPOST Pend Orielle County SR-20 0 Legend Prev Next < Image:WA-29. ... United States Highway 2 is an east-west United States Highway. ... Image File history File links US_2. ... Example signage of a Washington State Route The Washington State Route system is the official name given to the highway system in Washington owned, maintained, and managed by the Washington State Department of Transportation. ... Official language(s) None Capital Olympia Largest city Seattle Area  Ranked 18th  - Total 71,342 sq. ... Highway 101 redirects here. ... Port Townsend is a city located in Jefferson County, Washington. ... Newport is a city located in Pend Oreille County, Washington. ... United States Highway 2 is an east-west United States Highway. ... Official language(s) None Capital Boise Largest city Boise Area  Ranked 14th  - Total 83,642 sq. ...

Route

WA-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. Discovery Bay is an unincorporated community in Jefferson County, Washington. ... Highway 101 redirects here. ... Port Townsend is a city located in Jefferson County, Washington. ... Island County is a county located in the state of Washington. ... Skagit County is a county located in the state of Washington. ... Mount Adams in Washington state The Cascade Range is a mountainous region famous for its chain of tall volcanos called the High Cascades that run north-south along the west coast of North America from British Columbia to the Shasta Cascade area of northern California. ... Newport is a city located in Pend Oreille County, Washington. ...

Oddities

SR-20 is one of only 3 State Routes in Washington that have portions closed in the winter (the others being SR 410 and SR 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. Washington State Route 410, formerly U.S. Highway 410, is a 107. ...

Child Routes

• Washington State Route 20 Spur (1973-Present)
• Washington State Route 20 Business (1973-Present)

A possible future business route may be built in Oak Harbor when a by-pass 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. Oak Harbor is a city located on Whidbey Island in Island County, Washington. ... Deception Pass is a narrow pass separating Whidbey Island from Fidalgo Island, in the northwest corner of Washington State. ...

History

External links

• Highways of Washington

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