ɪt wʌz ɚɹˈɪdʒɪnəli dˈɛzɪɡnˌeɪɾᵻd ˌɔn ˈɔːɡəst twˈɛnti wˈʌn, nˈaɪntiːnhˈʌndɹɪd twˈɛnti θɹˈiː, fɹʌm wˈɪtʃᵻtˌɑːɹ fˈɔːlz tʊ ˈɑːlni, ɹᵻplˈeɪsɪŋ ɐ pˈoːɹʃən ʌv ˌɛsˈeɪtʃ twˈɛnti tˈuː.
It was originally designated on August 21, 1923, from Wichita Falls to Olney, replacing a portion of SH 22.