| Subdivision | From | To | Length | Sidings | Control | Timetable |
|---|---|---|---|---|---|---|
| Elsdon | Railport | Griffith | 29.2 miles | 5 | CTC and abs with double track | Elsdon |
| Chicago | 16th Street | Rane | 60.1 miles | 5 | CTC and multiple mains | Chicago |
| Waukesha | Madison Street | North State Line | 46.6 miles | 5 | CTC and multiple mains | Waukesha |
| Joliet | Bridgeport | Plaines | 37.5 miles | 0 | CTC and double track | Joliet |
| Freeport | 16th Street | East Junction | 113 miles | 7 | CTC, TWC and multiple mains | Freeport |
