'The Chicago Tunnel Company Railroad - Exploring Abandoned Tunnels''s Photo Gallery Return to 'The Chicago Tunnel Company Railroad - Exploring Abandoned Tunnels's Profile Nov 21, 2004 2:37 a.m. 'This tunnel under Polk Street at LaSalle Street was pumped dry and cleaned out by Commonwealth Edison. The tracks were removed, the floor was paved, lights were installed, and high voltage cables were run on the floor along each wall. For safety, the cables were embedded in concrete. Note how the concrete covered cables pass across a former siding on the left.' NEXT PIC > Add a comment about this image Comment on an Image   Subject   Close Tags  Font Color: Default Dark Red Red Orange Brown Yellow Green Olive Cyan Blue Dark Blue Indigo Violet White Black  Font size: Tiny Small Normal Large Huge Body     Nevermind, Close This Window   VIEW VIEW