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California State Route 58/Old California State Route 178 west of CA 43

This past week I drove California State Route 58 west of CA 43 in Kern County over the Temblor Range and La Panza Range to US Route 101 near Santa Margarita of San Luis Obispo County.


CA 58 west of Bakersfield and CA 99 in general is a mostly two-lane highway that traverses some very remote territory of Central California.  I chose to cover CA 58 west of CA 43 specifically due to the changes in the alignment that are to come when the West Side Parkway connects to the Centennial Corridor project.  The Centennial Corridor will connect CA 58 west of CA 99 to the already completed segment of Freeway on the West Side Parkway.

Westside Parkway and the Centennial Corridor; Future California State Route 58

CA 58 from Barstow west to Bakersfield was carved out of what was US Route 466 during the 1964 State Highway Renumbering.  CA 58 west of Bakersfield to Santa Margarita was carved out of what was part of CA 178.  The change from CA 178 to CA 58 west of Bakersfield to Santa Margarita can be ob…
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