BLE
| Bessemer & Lake Erie | 1 |
CC
| Chicago Central & Pacific | 1 |
CR
| Conrail | 15 |
EJE
| Elgin Joliet and Eastern | 81 |
FXE
| Ferromex | 1 |
GRW
| Gary Railway | 51 |
IHB
| Indiana Harbor Belt | 157 |
LT
| Lake Terminal Railroad Company | 124 |
MKC
| McKeesport Connecting Railroad Company | 30 |
NS
| Norfolk Southern | 77 |
NSAX
| National Steel Corporation | 1 |
PRSX
| Progress Rail Service | 1 |