ɪn nˈaɪntiːnhˈʌndɹɪd θˈɜːɾi fˈoːɹ, stˈeɪt hˈaɪweɪ fˈɪftiːn wʌz ɛkstˈɛndᵻd tə sənt. klˈaʊd, ɹᵻplˈeɪsɪŋ hˈaɪweɪ twˈɛnti fˈoːɹ nˈɔːɹθ ʌv kˈɪŋstən tˈaʊnʃɪp ænd ɐsˈuːmɪŋ mˈoʊst əv ɪts fˈɔːɹmɚɹ ɛkstˈɛnt.
In 1934, State Highway 15 was extended to St. Cloud, replacing Highway 24 north of Kingston Township and assuming most of its former extent.