From The RadioReference Wiki
(This is a work under construction)
MetroEast St. Louis
160.5600 M CSQ unid - "Crossing the diamond in Girard" FM Railroad 161.1000 M CSQ unid FM Railroad 161.4500 M CSQ unid - Wood River area FM Railroad 161.5050 M CSQ unid FM Railroad
161.2800 heard in use:
- Will County
- Detector near Elkhart (Menard)
- Springfield Area
Former use in the Springfield to St Louis Line, but no longer used
BNSF (Burlington Northern - Santa Fe)
161.0100 used for MOW on all former ATSF lines, rarely used on former BN lines.
44.5800 BM BNSF 44.5800 unknown use - recently added a lot of BM various locations IL, other states 6/08.