List of U.S. Routes in Washington
U.S. Routes in Washington Highway markers in different years for former U.S. Route 10 (1926), former U.S. Route 99 (1961), and current U.S. Route 101 (1970)
The state highway system of Washington, with U.S. routes highlighted in red.
Length 1,869.9 mi[ a] Formed November 11, 1926[ 1] Notes Maintained by WSDOT US Highways U.S. Route nn (US nn) Alternate Routes :U.S. Route nn Alternate (US nn Alt) Spur Routes :U.S. Route nn Spur (US nn Spur)
The U.S. Routes in Washington are segments of the United States Numbered Highway System that are owned and maintained by the U.S. state of Washington through the Washington State Department of Transportation (WSDOT). The United States Numbered Highway System in Washington covers 1,870 miles (3,009.5 km) and consists of eight highways, divided into four primary routes and four auxiliary routes.
The United States Numbered Highway System was approved and established on November 11, 1926 by the American Association of State Highway Officials (AASHO) and included eleven routes traveling through Washington.[ 1] [ 3]
In 1961, the state introduced a set of route markers in Olympia that were colored based on destination and direction rather than route.[ 4]
Mainline routes
Special routes
See also
Notes
^ The mileage is a sum of the lengths listed and cited on this page and includes overlapping sections.[ 2]
References
^ a b Weingroff, Richard F. (January 9, 2009). "From Names to Numbers: The Origins of the U.S. Numbered Highway System" . Highway History . Federal Highway Administration . Retrieved July 21, 2015 . ^ a b c Multimodal Planning Division (February 17, 2024). State Highway Log Planning Report 2023, SR 2 to SR 971 (PDF) (Report). Washington State Department of Transportation . Retrieved March 25, 2024 . ^ a b c d e f g h i j k l Bureau of Public Roads & American Association of State Highway Officials (November 11, 1926). United States System of Highways Adopted for Uniform Marking by the American Association of State Highway Officials United States Geological Survey . OCLC 32889555 . Retrieved November 7, 2013 – via Wikimedia Commons .^ "Highway Hues" . The Olympian . Retrieved July 4, 2023 – via Newspapers.com .^ Highway Planning Division (1960). "Annual Traffic Report, 1960" (PDF) . Washington State Department of Highways. Retrieved August 7, 2023 – via Washington State Archives . ^ a b Weingroff, Richard (January 30, 2008). "U.S. 2: Houlton, Maine, to Everett, Washington" . Federal Highway Administration . Retrieved July 21, 2015 . ^ a b c U.S. Route Numbering Subcommittee (June 24, 1969). "U.S. Route Numbering Subcommittee Agenda Showing Action Taken by the Executive Committee" (Report). Washington, DC: American Association of State Highway Officials . p. 8. Retrieved July 21, 2015 – via Wikisource. ^ a b Weingroff, Richard (May 7, 2005). "U.S. 12: Michigan to Washington" . Federal Highway Administration. Retrieved July 21, 2015 . ^ a b "47.17.380: State route No. 195" . Revised Code of Washington Washington State Legislature . 1979 [1970]. Retrieved July 21, 2015 .^ "47.17.157: State route No. 97-alternate" . Revised Code of Washington . Washington State Legislature. 1987. Retrieved July 21, 2015 .^ U.S. Route Numbering Committee (July 19, 1955). [Report of the U.S. Route Numbering Committee to the Executive Committee] (PDF) (Report). Washington, DC: American Association of State Highway Officials. p. 177. Retrieved April 9, 2022 – via Wikimedia Commons. ^ U.S. Route Numbering Committee (June 3, 1964). "U.S. Route Numbering Committee Agenda Showing Action Taken by the AASHO Executive Committee at Their Meeting" (PDF) (Report). Washington, DC: American Association of State Highway Officials. p. 102. Retrieved April 9, 2022 – via Wikimedia Commons. ^ "47.17.165: State route No. 101" . Revised Code of Washington . Washington State Legislature. 1987 [1970]. Retrieved July 21, 2015 .^ Washington State Department of Transportation (September 22, 2006). "An Application from the State Highway or Transportation Department of Washington for the Establishment of a U.S. Alternate Route 101" (PDF) . American Association of State Highway and Transportation Officials . Retrieved July 21, 2015 .
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