This is a list of California state highways that have existed since 1964. For those that were relinquished or renumbered in or before 1964, see List of state highways in California (pre-1964).
State Routes in California
Standard California state route shields, variously identified by the state as the shape of a miner's spade, to honor the California Gold Rush,[1] and an acorn shape.[2]
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
US
State
Scenic
History
Pre‑1964
Unconstructed
Deleted
Freeways
This is a list of state highways in the U.S. state of California that have existed since the 1964 renumbering. 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 does not include the few routes that were relinquished before 1964 or the larger number of sign routes that were renumbered in or before 1964.
Each state highway in California is maintained by the California Department of Transportation (Caltrans) and is assigned a Route (officially State Highway Route[3][4]) 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.
^"Route Renumbering: New Green Markers Will Replace Old Shields". California Highways and Public Works. 43 (3–4): 11. March–April 1964. ISSN 0008-1159 – via Archive.org. The new markers, like the old sign route shields, are in the shape of the spade used in the gold fields by California's 49er miners.
^Carter, F.M. (April 1937). "How U.S. and State Routes Are Designated by Numbered Markers". California Highways and Public Works. 15 (4): 12. ISSN 0008-1159 – via Archive.org. The marker or shield used for the State numbered route system is in the shape of an acorn, with the California Bear at the top and the words, 'State Highway' across the bottom of the shield.
^"Section 231" . California Streets and Highways Code – via Wikisource.
^California Department of Transportation. "Other State Highway Routes". Sacramento: California Department of Transportation.
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