ˌɔn dʒuːlˈaɪ twˈɛnti nˈaɪn, nˈaɪntiːnhˈʌndɹɪd ˈeɪɾi tˈuː, ðə ɹˈaʊt wʌz ɛkstˈɛndᵻd ɐlˈɔŋ ɪts kˈɜːɹənt ɹˈaʊt tʊ ˈɔɹɪndʒ, ɐlˈɔŋ ɐ kəŋkˈɜːɹənt ɹˈaʊt wɪð ˌɛsˈeɪtʃ ˈeɪɾi sˈɛvən ænd ˌɛsˈeɪtʃ sˈɪksti tˈuː.
On July 29, 1982, the route was extended along its current route to Orange, along a concurrent route with SH 87 and SH 62.