The segment of US 6 in California is signed as east–west,[3][4] as it is in the rest of the nation, despite the route primarily running north–south within the state's borders.
Starting in Inyo County, US 6 begins its route at Bishop at a junction with US 395 near the Bishop Paiute Tribe. After leaving Inyo County and entering Mono County, the highway proceeds due north to the town of Benton and makes a junction with State Route 120 (SR 120). The highway then begins ascending the lower foothills of the White Mountains, toward Montgomery Pass in Nevada. The highway reaches the state line before cresting the pass. While still in California, the highway passes Boundary Peak, the highest point in Nevada.[6]
Historic US 6 sign near the southern terminus of Sierra Highway
The California portion of US 6 was originally commissioned in 1937 as an extension of the highway from Greeley, Colorado, as part of the historic Grand Army of the Republic Highway auto trail.[12]
It formerly ran from Long Beach west to San Pedro and continued north on Figueroa Street, briefly concurrent with US 66 in Los Angeles before turning northwest and cosigning with US 99 on San Fernando Road. US 66 continued north on the Arroyo Seco Freeway before also being decommissioned in 1964, leading to the Harbor and Arroyo Seco freeways being redesignated to SR 11, which ran from Gaffey Street in San Pedro to Colorado Boulevard in Pasadena. In 1981, the Harbor Freeway between Gaffey Street and I-10 became I-110, replacing the SR 11 designation. The northern segment of SR 11 continuing to Glenarm Street became SR 110, which continues briefly as the Harbor Freeway before becoming the Pasadena Freeway north of the Four Level Interchange with US 101.
Renumbering
In 1964, all the route of US 6 in California south of Bishop lost official status with its US 6 signs removed. The highway was truncated to Bishop as part of the 1964 state highway renumbering.[13] In 2007, the state legislature recognized the decommissioned segment as Historic US 6 and approved the placement of Historic US 6 signage along the old alignment.[14]
Major intersections
Except where prefixed with a letter, postmiles were measured on the road as it was in 1964, based on the alignment that existed at the time, and do not necessarily reflect current mileage. R reflects a realignment in the route since then, M indicates a second realignment, L refers to an overlap due to a correction or change, and T indicates postmiles classified as temporary (for a full list of prefixes, see California postmile § Official postmile definitions).[1] Segments that remain unconstructed or have been relinquished to local control may be omitted. The numbers reset at county lines; the start and end postmiles in each county are given in the county column.
^ abcCalifornia Department of Transportation. "State Truck Route List". Sacramento: California Department of Transportation. Archived from the original(XLS file) on September 5, 2015. Retrieved June 30, 2015.
^Faigin, Daniel P. "Routes 1 through 8". California Highways. Retrieved December 19, 2007.
^"Article 2 of Chapter 2 of Division 1". California Streets and Highways Code. Sacramento: California Office of Legislative Counsel. Retrieved February 6, 2019.
^Federal Highway Administration (March 25, 2015). National Highway System: California (North)(PDF) (Map). Scale not given. Washington, DC: Federal Highway Administration. Retrieved October 20, 2017.
^Natzke, Stefan; Neathery, Mike & Adderly, Kevin (June 20, 2012). "What is the National Highway System?". National Highway System. Washington, DC: Federal Highway Administration. Retrieved July 1, 2012.
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