Between Ports and Crawford is the single track bridge over the Wisconsin River. CTC reportedly was installed here in 1917, but that might have actually been a controlled manual block system. A newer CTC installation in 1963 also included the double track from Crawford to Prairie Du Chien. The segment between Graf and La Crosse was double tracked only in recent years. In La Crosse, a CTC installation in 1946 originally included the double track south of Graf to Herrington. Herrington was a previously interlocked junction with an earlier separate passenger route, which provided more central access to La Crosse.
Between Portage and East Cabin, the line in 1888 was acquired by the paralleling Illinois Central, which operated both tracks as a double track line, with Burlington having trackage rights. In 1994, BNSF gained control of the segment, and quickly installed CTC.
Radio Frequency - 161.100 (AAR Channel 66)
144.8 Canadian Pacific Crossing (automatic interlocking)
146.2 CP 1462
156.9 Robinson Spur
172.2 Portage (junction-CN)
184.6 East Cabin (junction-CN)
185.2 East Dubuque
222.8 Glen Haven
239.7 Prairie Du Chien
270.1 De Soto
299.9 Grand Crossing
300.2 North La Crosse
2 tracks, CTC in use. 1 track CTC between Galena and Portage and between Ports and Crawford. Controlled by La Crosse Dispatcher in Fort Worth, Texas.
CTC has recently been extended over this line, accuracy of the the Google satellite images is not entirely certain.