ðə ɹˈaʊt ʌv mˈɑːdɚn aɪ ˈeɪɾi wʌz ˈɔːlsoʊ pɹˈiːviəsli jˈuːzd fɚðə kənstɹˈʌkʃən ʌv tˈuː tɹænskˌɑːntɪnˈɛntəl ɹˈeɪlɹoʊdz.
The route of modern I-80 was also previously used for the construction of two transcontinental railroads.