ðə bɹˈɪdʒ wʌz ɚɹˈɪdʒɪnəli bˈɪlt baɪ ðə ʃᵻkˈɑːɡoʊ ɡɹˈeɪt wˈɛstɚn ɹˈeɪlɹoʊd, wˌɪtʃ lˈeɪɾɚ bɪkˌeɪm pˈɑːɹt ʌvðə ʃᵻkˈɑːɡoʊ ænd nˈɔːɹθ wˈɛstɚn tɹænspoːɹtˈeɪʃən kˈʌmpəni.
The bridge was originally built by the Chicago Great Western Railroad, which later became part of the Chicago and North Western Transportation Company.