Izikhungo ku Chicago vula S Promontory Dr ube nesilinganiso esimaphakathi — 2.8 (ngokwezilinganiso zomsebenzisi Mapich).
S Promontory Dr, Chicago ezitholakele — isibhedlela futhi ezinye izikhungo.
Le datha ikhiqizwa kusetshenziswa izihlungi zangokwezifiso ezisuselwe kukho 5 Izinkampani, eyethulwe kuleli khasi.