ˌɔn ˈɔːɡəst twˈɛnti wˈʌn, nˈaɪntiːnhˈʌndɹɪd twˈɛnti θɹˈiː, ðə stˈeɪt ɹˈoʊdz dᵻpˈɑːɹtmənt hæd bɪɡˈʌn tə ɡɛt ɹˈɪd ʌv mˈoʊst sˈʌfɪkst spˈɜː ɹˈaʊts, sˌoʊ ðɪs ɹˈaʊt wʌz ɐɡˈɛn ɹᵻnˈʌmbɚd æz stˈeɪt hˈaɪweɪ nˈaɪnti.
On August 21, 1923, the state roads department had begun to get rid of most suffixed spur routes, so this route was again renumbered as State Highway 90.