California Highways: 
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Routing
(a) From Route 101 near El Rio to Route 118 near Saticoy.
(b) The relinquished former portions of Route 232 within the City of Oxnard are not state highways and are not eligible for adoption under Section 81. For those relinquished former portions of Route 232, the City of Oxnard shall maintain within its jurisdiction signs directing motorists to the continuation of Route 232.
Post 1964 Signage HistoryThis route was defined in 1963 as running "From Route 1 near El Rio to Route 118 near Saticoy." Planned as freeway in 1965; never upgraded. The freeway alignment, according to an 1983 Thomas Brothers, would have run between Rose and Santa Clara from a point Westerly of Los Angeles (where it met a new alignment of the Route 118 freeway) W and S Westerly of Rice to Route 1. The intent may have been for the Route 232 freeway to be a continuation of the proposed Route 118 freeway; and to become the Route 1 freeway S of US 101 (that's what the 1983 Thomas Guide shows)
In 2008, SB 1366 (Chapter 717, 9/30/2008) authorized relinquishment of the portion of the route within the city of Oxnard.
In March 2013, the CTC relinquished right of way in the city of Oxnard on Route 232 from Oxnard Boulevard (Route 1) to Route 101, under terms and conditions as stated in the relinquishment agreement, determined to be in the best interest of the State. Authorized by Chapter 717, Statutes of 2008, which amended Section 532 of the Streets and Highways Code.
In 2014, AB 2752 (Chapter 345, 9/15/2014) changed the definition to start
at Route 101 [From Route 1 101 near El Rio to
Route 118 near Saticoy] and changed the wording regarding the relinquished
portion:
The relinquished former portions of Route 232 within the City of Oxnard are not state highways and are not eligible for adoption under Section 81. For those relinquished former portions of Route 232, the City of Oxnard shall maintain within its jurisdiction signs directing motorists to the continuation of Route 232.
Pre 1964 Signage History
StatusIn July 2025, it was reported that Caltrans had started a pavement
rehabilitation project on Route 232 between US 101 and Route 118 in Oxnard
and the unincorporated Ventura County area of El Rio. The Vineyard
Avenue Pavement Project stretches from US 101 to Route 118 and will
replace more than 14 lane miles of pavement to improve ride quality. The
project will also upgrade 37 Americans with Disabilities Act (ADA)
compliant curb ramps, install curb ramps at new locations, install
accessible pedestrian signals and push buttons, upgrade more than 650
linear feet of guardrail, construct new approach and departure slabs for
the US 101/Route 232 interchange, and add bicycle lanes. Construction will
begin at the US 101/Vineyard Avenue interchange and progress north towards
Los Angeles Avenue. The total project cost is $30.8 million and is
anticipated to be completed in winter of 2026/2027.
(Source: Caltrans District 7 News Release, 7/11/2025)
Freeway[SHC 253.1] Entire route. Added to the Freeway and Expressway system in 1965.
Other WWW Links
StatisticsOverall statistics for Route 232:
Pre-1964 Legislative RouteIn 1949, Chapter 1467 added the route that would become LRN 232 as LRN 207: “[LRN 207] is from Sacramento to Marysville; provided, however, that Section 600 of the Streets and Highways Code shall be applicable to the route added to the State Highway System by this section the same as if said route had been added by the Collier-Burns Highway Act of 1947, and the Department of Public Works shall not be required to maintain any portion of said route until the same has been laid out and constructed as a state highway” In 1951, Chapter 1562 renumbered this duplicate [LRN 207] as [LRN 232].
In 1955, Chapter 1488 removed the Section 600 language.
This route ran from Sacramento to Marysville along Jiboom Street, Garden Highway, and El Centro Road starting at the junction with former Route 16/Route 24 (LRN 50) near "I" street. This was unsigned until sometime in 1959-1960; it shows up as part of Route 24 as of the 1960 State Highway Map. It is now now county-maintained from West Natomas north to Elkhorn (near I-5), Route 99 from I-5 north to Catlett and Route 70 to Olivehurst. (Some of El Centro Road/Avenue/Boulevard has been bypassed by the freeway routings of Route 70 and Route 99 between Elkhorn and Olivehurst).
© 1996-2024 Daniel P. Faigin.
Maintained by: Daniel P. Faigin
<webmaster@cahighways.org>.
Route 231
Route 233