A shekara ta 1867 Illinois ta tsakiya ta fadada hanyar zuwa Iowa.
Tabbas, wani nau'i mai rikitarwa na jumla shine "A 1867 Illinois Central ya kara da waƙarsa zuwa Iowa, kuma a lokacin shekarun 1870 da 1880s IC ya samo kuma ya fadada hanyoyin jirgin kasa a kudancin Amurka. "