Several branch lines acquired from BNSF between 1997 and 2004 by Illinois Railnet. Acquired in 2005 by Omnitrax and renamed Illinois Railway. All lines connect with BNSF former Burlington Route main lines.

Links marked with S or T include historical information on lost passenger Stations and interlocking Towers. Beyond the Chicago area, information on towers serving multiple railroads is generally not duplicated among branch lines.

Fox River Line (Montgomery to Streator) S

La Salle Line (La Salle to Zearing) S
(formerly Streator to Zearing)

Rockford Line (Flag Center to Rockford) ST

Mt. Morris Line (Oregon to Mt. Morris)
(formerly Oregon to Forreston)