St. Charles Air Line

St. Charles Air Line
Amtrak's Saluki traverses the Air Line in 2010.
Overview
Owner	BNSF, UP, CN
Locale	Chicago
History
Opened	1856
Technical
Track gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Route map v t e Legend CN Chicago Subdivision to Richton Park and New Orleans Metra Joliet Sub District for RI State Street Subway CN Freeport Subdivision BOCT to Grand Central St. Charles Air Line Bridge over Chicago River south branch Amtrak 16th Street Diesel Shop NS Chicago Line BNSF Chicago Subdivision I-90 / I-94 BNSF Chicago Subdivision to Aurora

The St. Charles Air Line is a rail line in Chicago, Illinois, partially owned by the BNSF Railway, Union Pacific Railroad (UP), and Canadian National Railway (CN).

It is currently used by the Canadian National Railway for freight trains and by Amtrak passenger trains. The line runs east from south of Union Station to a junction with Canadian National Railway at 16th Street interlocking (the CN line then continues towards the shore of Lake Michigan, where it turns south under McCormick Place, passing over and then paralleling the Metra Electric Line).