ˌɔn noʊvˈɛmbɚ θˈɜːɾi, nˈaɪntiːnhˈʌndɹɪd sˈɪksti wˈʌn, ðə ɹˈaʊt wʌz ʃˈɔːɹʔn̩d fɹʌm pˈoːɹt ˈɑːɹθɚ tə wˈɪni, wɪððə wˈɛstɚn pˈoːɹʃənz hˌævɪŋ bˌɪn ɹᵻplˈeɪst baɪ ˌɪntɚstˈeɪt tˈɛn aɪ tˈɛn.
On November 30, 1961, the route was shortened from Port Arthur to Winnie, with the western portions having been replaced by Interstate 10 (I-10).