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.
System information
Length	1,390.63 mi[lower-alpha 1] (2,238.00 km)
Formed	November 11, 1926[2]
Notes	Maintained by WSDOT
Highway names
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)
System links
	State highways in Washington; Interstate; US; State; Scenic; Former PSH; 1964 renumbering; Former;

The U.S. routes in Washington are United States Numbered Highways 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 1,390.63 miles (2,238.0 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.[2][3]

Primary highways

Number	Length (mi)[1]	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
US 2	326.34	525.19	SR 529 in Everett	US 2 in Newport	01946-01-011946[4]	current
US 10	—	—	US 99 in Seattle	US 10 at State Line	01926-01-011926[3]	01969-01-011969[5]
US 12	430.80	693.31	US 101 in Aberdeen	US 12 in Clarkston	01967-01-011967[6]	current	Longest U.S. route in Washington
US 95	—	—	US 95 near Uniontown	US 95 near Uniontown	01926-01-011926[3]	01979-01-011979[7]
US 97	321.52	517.44	US 97 at Maryhill	BC 97 near Oroville	01926-01-011926[3]	current
US 99	—	—	US 99 in Vancouver	BC 99 in Blaine	01926-01-011926[3]	01969-01-011969[5]
US 101	365.56	588.31	US 101 at Megler	I-5 in Tumwater	01926-01-011926[3]	current

Auxiliary highways

Number	Length (mi)[1]	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
US 195	93.37	150.26	US 195 near Uniontown	I-90/US 2/US 395 in Spokane	01926-01-011926[3]	current
US 197	2.76	4.44	U.S. Route 197 near Dallesport	SR 14 near Dallesport	01952-01-01c. 1952	current	Shortest U.S. route in Washington
US 295	—	—	US 410 near Pomeroy	US 195 in Colfax	01926-01-011926[3]	01968-01-01c. 1968
US 395	275.00	442.57	US 395 near Plymouth	BC 395 at Laurier	01926-01-011926[3]	current
US 410	—	—	US 101 in Aberdeen	US 410 in Clarkston	01926-01-011926[3]	01967-01-011967[6]
US 730	6.08	9.78	US 730 near Wallula	U.S. Route 12 near Wallula	01926-01-011926[3]	current
US 830	—	—	US 101 at Johnston's Landing	US 97 near Maryhill	01926-01-011926[3]	01968-01-01c. 1968

Special routes

Number	Length (mi)[1]	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
US 10 Alt.	—	—	US 10/US 99 in Seattle	US 10 Alt in Newport	01940-01-01c. 1940	01946-01-011946[4]	Replaced by US 2
US 10 Alt.	—	—	US 10 in Seattle	US 10 in Issaquah	01940-01-011940	01955-01-011955	Replaced by SR 900
US 97 Alt.	39.95	64.29	US 97/US 2 in Sunnyslope	US 97 near Chelan	01987-01-011987[8]	current	Longest special U.S. route in Washington, serves Entiat and Chelan
US 97 Spur	0.26	0.42	US 97 near Orondo	US 2 near Orondo	—	—	Shortest special U.S. route in Washington
US 97 Bus.	—	—	US 97 near Okanogan	US 97/SR 20 near Omak	01967-01-01c. 1967	01973-01-01c. 1973	Replaced by SR 215
US 99 Alt.	—	—	US 99 in Bellingham	BC 13 near Lynden	01954-01-01c. 1954	01969-01-011969[5]	Replaced by SR 539
US 99 Alt.	—	—	US 99 in Burlington	US 99 in Bellingham	01937-01-01c. 1937	01968-01-01c. 1968	Replaced by SR 11
US 99T	—	—	I-5 in Tukwila	US 99 in Tuwkila	01957-01-01c. 1957	01964-01-01c. 1964	Replaced by SR 599
US 101 Alt.	0.63	1.01	US 101 near Ilwaco	US 101 near Ilwaco	01970-01-011970[9]	current	Recognized by AASHTO in 2006,[10] bypasses Ilwaco and Seaview
US 101 Truck	—	—	US 101 in Port Angeles	US 101 in Port Angeles	01966-01-01c. 1966	01991-01-01c. 1991	Replaced by SR 117
US 195 Spur	0.54	0.87	US 195 near Uniontown	US 195 Spur near Uniontown	01979-01-011979[7]	current	Previously part of US 95
US 395 Spur	5.42	8.72	Freya Street near Spokane	US 395 near Mead	—	—	Named the North Spokane Corridor freeway, bypasses Spokane
US 730 Spur	0.30	0.48	US 730 near Wallula	US 12 near Wallula	—	—

Notes

The mileage is a sum of the lengths listed and cited on this page.[1]

References

Multimodal Planning Division (January 15, 2015). State Highway Log Planning Report 2014, SR 2 to SR 971 (PDF) (Report). Washington State Department of Transportation. Retrieved July 21, 2015.
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.
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 (Map). 1:7,000,000. Washington, DC: U.S. Geological Survey. OCLC 32889555. Retrieved November 7, 2013 – via University of North Texas Libraries.
Weingroff, Richard (January 30, 2008). "U.S. 2: Houlton, Maine, to Everett, Washington". Federal Highway Administration. Retrieved July 21, 2015.
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.
Weingroff, Richard (May 7, 2005). "U.S. 12: Michigan to Washington". Federal Highway Administration. Retrieved July 21, 2015.
"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.
"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.

External links

Highways of Washington State

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[length-2] The mileage is a sum of the lengths listed and cited on this page.[1]

[log-1] Multimodal Planning Division (January 15, 2015). State Highway Log Planning Report 2014, SR 2 to SR 971 (PDF) (Report). Washington State Department of Transportation. Retrieved July 21, 2015.

[USH-3] 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.

[USH-1926-4] 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 (Map). 1:7,000,000. Washington, DC: U.S. Geological Survey. OCLC 32889555. Retrieved November 7, 2013 – via University of North Texas Libraries.

[FHWA-US2-5] Weingroff, Richard (January 30, 2008). "U.S. 2: Houlton, Maine, to Everett, Washington". Federal Highway Administration. Retrieved July 21, 2015.

[AASHTO-1969-6] 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.

[FHWA-US12-7] Weingroff, Richard (May 7, 2005). "U.S. 12: Michigan to Washington". Federal Highway Administration. Retrieved July 21, 2015.

[RCW-195-8] "47.17.380: State route No. 195". Revised Code of Washington. Washington State Legislature. 1979 [1970]. Retrieved July 21, 2015.

[RCW-97Alt-9] "47.17.157: State route No. 97-alternate". Revised Code of Washington. Washington State Legislature. 1987. Retrieved July 21, 2015.

[RCW-US101-10] "47.17.165: State route No. 101". Revised Code of Washington. Washington State Legislature. 1987 [1970]. Retrieved July 21, 2015.

[AASHTO-US101Alt-11] 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.