Cragin to 22nd Street Yard

From the north end of the Belt Railway of Chicago (BRC) main line on Track 3 of the Milwaukee West Metra line at Cragin (MP 0.0), the line is single track on the connector bridging over Cicero Avenue, becoming double track, current-of-traffic, CBS, Yard Limits, maximum speed 25 mph, as the line turns south, with the UP Cragin Industrial Lead on the east side, past a bridge over Grand Avenue, a bridge over North Avenue, a bridge over Division Street, the former location of the erstwhile BRC West Chicago Yard, to the west, where north-facing spurs remain on the west side, a bridge over Augusta Boulevard, a crossover at Augusta Boulevard (MP 1.2), where there is a connection to the UP, a bridge over Chicago Street, and the UP line turning away east,

There is a bridge over the six tracks of the C&NW West Line, a bridge over Lake Street and a bridge carrying the CTA Green Line overhead, co-incident, bridges over Fulton Street, Maypole Avenue, West End Avenue, Washington Boulevard, Madison Street, Monroe Street, Adams Street, Jackson Boulevard, Van Buren Street, Congress Street and Harrison Boulevard, a former bridge over an erstwhile location of the CTA Blue Line and Chicago, Aurora & Elgin, a bridge over the Eisenhower Expressway (I-290), with the current routing of the CTA Blue Line in its median, bridges over Lexington Street, Polk Street and 5th Avenue, and a bridge over the B&OCT Forest Park Line (the CSX Altenheim sub.).

At 14th Street (MP 3.6), there is a junction with a southwest quadrant connector from the B&OCT Forest Park line, and a southeast quadrant connector which passes beneath the BRC line, forming two extra tracks on the west side, adjacent to the north end of the BRC 22nd Street Yard on the east side, which has groups of three and six tracks, and a runaround track on the east side, all bridging over 14th Street and 16th Street, while on the west side, the extra tracks connect in and form the junction with the Manufacturers' Junction Railway, on the west side, which connects back in just before the bridge over the CTA Pink Line at the south end of the yard at 22nd Street (MP 4.5), where there is a bridge over the eponymous street and a pedestrian subway.