CTA Surface System History presented by the Illinois Railway Museum
               
Sedgwick-Ogden
(H) - denotes route history included in description.
* - denotes maps from the Moffat Collection.
01/03/1982 (H)
01/04/1982
07/01/1984
01/27/1985 (H)
09/08/1986 *
08/17/1987
03/21/1988 *
06/06/1989
03/08/1992
09/30/1993 (H)
07/03/1994 (H)
07/03/1994 v2 *
09/11/1994 (H)
06/18/1995 (H)
03/09/1997 (H)
12/13/1998 (H)
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