Radio Frequency (East Dispatcher - 160.485 (AAR Channel 25)
Radio Frequency (West Dispatcher - 160.980 (AAR Channel 58)
0.0 Ivanhoe (EJ&E crossing)
2.2 CP Gibson (junction-Kankakee Line)
2.8 CP MC Conn.
4.0 Columbia Avenue
5.4 Hohman Avenue (NS crossing)
7.1 CP Calumet Park
10.6 Dolton (tower-UP crossing)
11.3 School Street
11.7 Stewart Avenue
13.0 Ashland Avenue
13.7 CP Harvey (CSX crossing)
14.4 139th St.
15.2 GTW Tower (CN crossing)
15.4 CP Francisco
16.5 Wireton
17.2 Crawford Ave.
19.3 112th St.
21.2 Chicago Ridge (Metra crossing/remote-dispatcher)
22.7 95th St.
25.9 71st St.
27.0 Argo
27.5 CP Canal (IC crossing)
28.3 CP McCook (BNSF crossing)
29.8 Superior
31.0 CP LaGrange
33.9 Broadview
35.1 Bellwood
35.4 Washington Blvd.
35.9 CP Hill (connection - UP)
37.0 CP Rose
38.3 CP Norpaul
38.8 CP Grand Avenue (connection - WC)
39.3 Franklin Avenue (connection - CP)
Ivanhoe to CP Calumet Park - 1 track, CTC in use.
CP Calumet Park to School Street - 2 tracks, CTC in use.
School Street to CP Harvey - yard rules.
CP Harvey to CP LaGrange - 2 tracks, CTC in use.
CP LaGrange to CP Hill - 2 tracks, signalled for normal right hand operation.
CP Hill to Franklin Avenue - 2 tracks, CTC in use.
CTC controlled by IHB dispatchers at Calumet City. East desk controls east of CP Harvey, West desk controls west of CP Harvey.
Radio Frequency - 160.485 (AAR Channel 25)
0.0 CP 502 (junction-NS/remote-Hick)
0.2 CP 100 (remote-Hick)
1.4 Michigan Avenue
1.9 Calumet (tower-CSX/EJ&E crossing)
2.8 Grasselli (EJ&E crossing/remote-dispatcher)
3.8 CP Gibson (junction-Main Line)
CP 502 to CP 100 - 2 tracks, CTC in use, controlled by NS operator Hick.
CP 100 to CP Gibson - 2 tracks, signalled for normal right hand operation.
Information is subject to change, and is based on information from the CORA (Chicago Operating Rules Association) guide dated 2001, along with some observations, and Google satellite imagery.
The following colors are used to indicate types of operation:
BLUE - manual interlocking
RED - centralized traffic control (CTC) or bidirectional signals
GREEN - automatic block signals (single direction, current of traffic)
BLACK - unsignaled
Thin lines across tracks indicate signals. In CTC or bidirectional signal territory, signals usually exist for both directions at all locations, except at interlockings where the signals usually are only in the direction entering the interlocking.

