Crossing Over Onto Milwaukee Road-Union Pacific Main Line from Seventh Avenue Switching Job, 1960

Shows the cross-over from the Great Northern main tracks. It shows the crossover between the two main lines, the Union Pacific-Milwaukee Road main lines and the Great Northern. This is the Great Northern main line trackage. It is necessary to use these main lines in order to service industries in the area, on both sides of the track. The crossing here is at Seventh Avenue. Industries are served on both sides of the track, so at least half of the time, signals must be passed on the fireman's side.