List of U.S. Routes in California

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United States Numbered Highways in California
U.S. Route 6 markerU.S. Route 95 markerU.S. Route 101 marker
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

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[edit]

  • 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][a] Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
US 6 40.505 65.186 US 395 in Bishop Nevada state line 1947 current
US 40 [b][c] US 101 in San Francisco Nevada state line 1926 1964 Replaced by I-80
US 48 [b][c] First Street in San Jose French Camp Road in French Camp 1926 1931 Renumbered as US 50
US 50 108.624 174.813 I-80 in West Sacramento Nevada state line 1926 current
US 60 [b][c] 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
US 66 315[b][c] 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
US 70 [b][c] I-5 and former US 99 in Los Angeles Arizona state line 1926 1964 Replaced by I-10; ran concurrently with US 60
US 80 176[b][c] 283 I-5 and former US 101 in San Diego Arizona state line 1926 1964 Replaced by I-8
US 91 [b][c] I-5 and former US 99 in Los Angeles Nevada state line 1926 1971 Replaced by I-15 and SR 91
US 95 116.721[d] 187.844 Arizona state line Nevada state line 1930 current
US 97 54.364 87.490 I-5 in Weed Oregon state line 1930 current
US 99 [b][c] Fed. 5 near Calexico Oregon state line 1926 1964 Replaced by I-5; completely decommissioned in 1972
US 99W [b][c] 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
US 101 808.111[b] 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
US 101W [b] I-880 and US 101 I-580 and US 101 1929 1940 Reverted back to US 101 after U.S. 101E was decommissioned
US 101E [b] US 101 US 101 1929 1940 Renumbered into SR 17
US 199 36.41 58.60 US 101 near Crescent City Oregon state line 1926 current
US 299 [b][c] US 101 in Arcata US 395 in Alturas 1934 1964 Replaced by the majority of SR 299
US 395 556.909[b][c] 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
US 399 137[b][c] 220 US 101 in Ventura SR 99 and former US 99 in Bakersfield 1934 1964 Replaced by SR 33 and SR 119
US 466 526[b][c] 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

See also[edit]

Notes[edit]

  1. ^ Lengths rounded to the nearest mile or tenth-mile are estimated from various sources including Google Maps.
  2. ^ a b c d e f g h i j k l m n o p Portions of this route have been relinquished to or are otherwise maintained by local or other governments, and may not be included in the length.
  3. ^ a b c d e f g h i j k l m This route is broken into pieces due to a gap in the description, unfilled by any route.
  4. ^ This route is broken into pieces, and the length does not reflect the overlaps that would be required to make the route continuous.

References[edit]

  1. ^ "Section 231". California Streets and Highways Code – via Wikisource. 
  2. ^ California Department of Transportation. "Other State Highway Routes". Sacramento: California Department of Transportation. 
  3. ^ California Department of Transportation. "State Truck Route List" (XLS file). Sacramento: California Department of Transportation. Retrieved February 2008.  Check date values in: |access-date= (help)

External links[edit]