Radio Frequency - 160.500 (AAR Channel 26)
8.9 WR Tower (Granite City)
7.1 SH Tower (East Approach)
5.5 West Approach
4.9 Bremen Avenue
3.9 North Market Street
2.8 Biddle Street
1.6 Poplar Street
1.1 Gratiot Street
0.6 14th Street
--- Union Station
0.6 23rd Street
1.6 Teresa Avenue
1.8 Grand Avenue
2 tracks, CTC in use.