List of U.S. Routes in California

United States Numbered Highways in California
Highway markers for US 6, US 95, and US 101
Highway names
Interstates:	Interstate XX (I-XX)
US Highways:	U.S. Route XX (US XX)
State:	State Route XX (SR XX)
System links
State highways in California Interstate U.S. State Pre-1964 History Unconstructed Deleted Freeway Scenic

This is a list of U.S. Routes in the U.S. state of California. It includes routes that were defined by the California State Legislature but never built, as well as routes that have been entirely relinquished to local governments. It also includes the routes that were decommissioned during the 1964 state highway renumbering.

Each U.S. Route in California is maintained by the California Department of Transportation (Caltrans) and is assigned a Route (officially State Highway Route^[1][2]) number in the Streets and Highways Code (Sections 300-635). Under the code, the state assigns a unique Route X to each highway, and does not differentiate between state, US, or Interstate highways.

List

• Lengths for each state route were initially measured as they were during the 1964 state highway renumbering (or during the year the route was established, if after 1964) based alignment that existed at the time, and do not necessarily reflect the current mileage. Portions of some routes have been relinquished to or are otherwise maintained by local or other governments, and may not be included in the length listed below. Several routes are broken into non-contiguous pieces, and their lengths may not reflect the overlaps that would be required to make them continuous. Some routes may also have a gap because it is either explicitly defined in the California Streets and Highways Code or due to an unconstructed portion, and the listed length may or may not reflect the gap.
• If a route was renumbered, the old or new number is given in the "notes" column.
• Concurrences are not explicitly codified in the Streets and Highways Code; such highway segments are listed on only one of the corresponding legislative route numbers. When a highway is broken into such segments, the total length recorded by Caltrans only reflects those non-contiguous segments, and does not include those overlaps that would be required to make the route continuous.
• Since the 1990s, a number of piecemeal relinquishments have been made. These are generally reflected in the length but not the termini.
• Former termini are not shown if they are along the current route, meaning that the route was simply extended.
• A U.S. Route may be partially signed as an Interstate Highway, while the remaining segment is signed as a U.S. Route.

Number	Length (mi)[3][lower-alpha 1]	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
US0006 !US 6	40.505	65.186	US 395 in Bishop	Nevada state line	1947	current
US0040 !US 40	—[lower-alpha 2][lower-alpha 3]	—	US 101 in San Francisco	Nevada state line	1926	1964	Replaced by I-80
US 19260048 !US 48	—[lower-alpha 2][lower-alpha 3]	—	First Street in San Jose	French Camp Road in French Camp	1926	1931	Renumbered as US 50
US0050 !US 50	108.624	174.813	I-80 in West Sacramento	Nevada state line	1926	current
US0060 !US 60	—[lower-alpha 2][lower-alpha 3]	—	I-5 and former US 99 in Los Angeles	US 395 in Hallelujah Junction	1926	1972	Replaced by I-10; ran concurrently with US 70
US0066 !US 66	315[lower-alpha 2][lower-alpha 3]	507	SR 1 and former US 101 ALT in Santa Monica	Arizona state line	1926	1969	Replaced by I-40 and other routes. Completely decommissioned in 1985
US0070 !US 70	—[lower-alpha 2][lower-alpha 3]	—	I-5 and former US 99 in Los Angeles	Arizona state line	1926	1964	Replaced by I-10; ran concurrently with US 60
US0080 !US 80	176[lower-alpha 2][lower-alpha 3]	283	I-5 and former US 101 in San Diego	Arizona state line	1926	1964	Replaced by I-8
US0091 !US 91	—[lower-alpha 2][lower-alpha 3]	—	I-5 and former US 99 in Los Angeles	Nevada state line	1926	1971	Replaced by I-15 and SR 91
US0095 !US 95	116.721[lower-alpha 4]	187.844	Arizona state line	Nevada state line	1930	current
US0097 !US 97	54.364	87.490	I-5 in Weed	Oregon state line	1930	current
US0099 !US 99	—[lower-alpha 2][lower-alpha 3]	—	Fed. 5 near Calexico	Oregon state line	1926	1964	Replaced by I-5; completely decommissioned in 1972
US0099W !US 99W	—[lower-alpha 2][lower-alpha 3]	—	SR 99 and former US 99 in Wheeler Ridge	SR 99 and former US 99 in Sacramento	1929	1964	Replaced by majority of I-5
US0101 !US 101	808.111[lower-alpha 2]	1,300.529	I-5 / I-10 / SR 60 in Los Angeles	Oregon state line	1926	current	Segment across the Golden Gate Bridge is not officially recognized as part of the state highway system
US0101W !US 101W	—[lower-alpha 2]	—	I-880 and US 101	I-580 and US 101	1929	1940	Reverted back to US 101 after U.S. 101E was decommissioned
US0101E !US 101E	—[lower-alpha 2]	—	US 101	US 101	1929	1940	Renumbered into SR 17
US0199 !US 199	36.41	58.60	US 101 near Crescent City	Oregon state line	1926	current
US0299 !US 299	—[lower-alpha 2][lower-alpha 3]	—	US 101 in Arcata	US 395 in Alturas	1934	1964	Replaced by the majority of SR 299
US0395 !US 395	556.909[lower-alpha 2][lower-alpha 3]	896.258	I-15 near Hesperia	Oregon state line	1979	current	Split into two segments, as the highway clips into Nevada to serve Carson City and Reno
US0399 !US 399	137[lower-alpha 2][lower-alpha 3]	220	US 101 in Ventura	SR 99 and former US 99 in Bakersfield	1934	1964	Replaced by SR 33 and SR 119
US0466 !US 466	526[lower-alpha 2][lower-alpha 3]	847	SR 1 in Morro Bay	Nevada state line	1935	1965	Replaced by SR 58 and I-15; ran concurrently with former US 91
Former

• 

  Westbound at the bottom of the 1947 grade to Echo Summit on US 50

• 

  A section of old US 80 (Wildwood Glen Lane) now closed to vehicular traffic west of Descanso Junction

• 

  US 101 northbound as it enters downtown Los Angeles

• 

  US 395 descending into Owens Valley from the Sierra Nevada, just north of Bishop

See also

• California Roads portal

Notes

References