CTA Surface System History presented by the Illinois Railway Museum
               
Below listed are Service Bulletins. The titles give you an idea of what is contained in each memo. The date listed is the memo date or the earliest date listed on the memo. They are in bulletin number order, not necessarily chronological order.
Inauguration of Skokie Swift Service - 04/20/1964
Skokie Korlov Ave Crossover Switch - 08/08/1966
Extension of Logan Square Branch to Jefferson Park - 02/01/1970
Closing of Rapid Transit Stations - 01/13/1973
Closing of Rapid Transit Stations - 07/16/1973
Ravenswood Addison & Montrose A/B Change - 09/02/1973
Ravenswood Paulina Station - 10/17/1973
Skokie SOAC Test Trains - 01/12/1975
Loop Structure Work - 10/19/1975
New Clark Junction Interlocking Tower - 08/22/1976
North-South Cermak Station - 09/12/1976
Ravenswood Tracks Out of Service - 11/04/1976
Evanston Express Discontinuing Morse & Loyola Stops - 12/20/1976
North-South Cermak Station - 01/08/1977
North-South Special Train Routing - 03/27/1977
North-South Track Out of Service - 03/26/1977
North-South Crossover N of Berwyn - 03/26/1977
North-South Cermak Station - 05/23/1977
North-South Interlocking at Granville - 08/27/1977
North-South Cermak Station Closing - 09/09/1977
Loop Crossover - 09/23/1977
Skokie Asbury Overpass Construction - 12/04/1977
WNW-Douglas New Cicero Station - 01/18/1978
WNW-Douglas 50th Ave Station Closing - 01/18/1978
Skokie East Prairie Grade Crossing Work - 04/17/1978
Skokie Niles Center Road Grade Crossing Work - 05/06/1978
WNW-Douglas Single Track Movements - 05/20/1978
North-South Howard Terminal Interlocking Signals - 06/15/1978
North-South Granville Berthing Change - 08/21/1978
WNW-Douglas 17th St Bypass Track Ties - 06/24/1979
WNW-Douglas 17th St Bypass Track In Service - 06/24/1979
LDR Paulina-Congress Connector Out of Service - 11/27/1979
Ravenswood Reroute - 01/13/1980
Ravenswood Structure Work - 01/27/1980
West-South 95th and Forest Park Designated Turnback - 02/24/1980
WNW-Douglas Single Track Movement - 03/02/1980
Evanston Express Clark Jct Reroute - 02/26/1980
West-South Paulina-Congress Connector Out of Service - 04/07/1980
West-South Forest Park New Signal - 05/13/1980
WNW-Douglas Single Track Movement - 05/16/1980
WNW-Douglas Single Track Movement - 05/18/1980
WNW-Douglas Single Track Movement - 05/28/1980
WNW-Douglas Single Track Movement - 05/25/1980
WNW-Douglas Single Track Movement - 06/04/1980
Ravenswood Structure Work - 06/01/1980
Ravenswood Single Track Movement - 06/01/1980
WNW-Milwaukee Single Track Movement - 06/11/1980
WNW-Douglas Single Track Movement - 06/22/1980
WNW-Milwaukee Single Track Movement - 06/08/1980
WNW-Douglas Single Track Movement - 07/20/1980
WNW-Douglas Single Track Movement - 07/26/1980
WNW-Congress Desplaines Loop Leads Out of Service - 08/02/1980
West-South Single Track Movement - 08/10/1980
Ravenswood Track Renewal - 08/24/1980
WNW-Douglas Single Track Movement - 08/24/1980
WNW-Milwaukee Single Track Movement - 09/28/1980
Ravenswood Track Renewal - 10/12/1980
North-South Reroute - 11/02/1980
WNW-Congress DesPlaines Crossover - 10/21/1980
Evanston Single Track Movement - 10/25/1980
Evanston Single Track Movement - 11/01/1980
WNW-Douglas Relocation of 54th Signal X2 - 10/28/1980
Evanston Single Track Movement - 11/08/1980
North-South New Granville Station - 11/11/1980
WNW-Douglas Single Track Movement - 11/21/1980
North-South Howard Pocket 3 Out of Service - 11/14/1980
Ravenswood Track Renewal - 11/16/1980
Equipment Prohibited from Restricted Locations - 11/28/1980
Ravenswood New Western Station In Service - 02/02/1981
Evanston South Blvd Team Track Returned to Service - 02/05/1981
North-South Tracks Temp Out of Service - 02/28/1981
Ravenswood Track Renewal - 03/15/1981
WNW-Milwaukee Single Track Movement - 03/29/1981
Ravenswood Outer Loop Reroute - 03/30/1981
Ravenswood Outer Loop Reroute - 04/06/1981
Desplaines Terminal Yard Section Panel - 04/07/1981
Dearborn Closed at VanBuren - 04/12/1981
Ravenswood Track Renewal - 04/26/1981
Ravenswood Single Track Movement - 04/26/1981
Ravenswood Outer Loop Reroute - 04/27/1981
Ravenswood Track Renewal - 05/03/1981
Ravenswood Track Renewal - 05/10/1981
Ravenswood Outer Loop Reroute - 05/11/1981
Ravenswood Track Renewal - 05/17/1981
Ravenswood Outer Loop Reroute - 05/18/1981
WNW-Douglas Single Track Movement - 05/17/1981
Ravenswood Track Renewal - 05/31/1981
Evanston Track Renewal - 06/01/1981
WNW-Milwaukee Single Track Movement - 06/07/1981
WNW-Douglas Polk Crossover Perm Out of Service - 06/08/1981
WNW-Douglas Harrison Crossover Perm Out of Service - 06/08/1981
Equipment Prohibited from Restricted Locations - 06/16/1981
WNW-Milwaukee Single Track Movement - 06/28/1981
Ravenswood Track Renewal - 07/05/1981
WNW Jefferson Park Term New Signal - 07/08/1981
Ravenswood Tack Renewal - 07/12/1981
WNW-Milwaukee Single Track Movement - 07/12/1981
North-South Howard Track Renewal - 07/12/1981
West-South Outer Loop Single Track Movement - 07/11/1981
Ravenswood Track Renewal - 07/12/1981
Ravenswood Single Track Movement - 07/17/1981
Ravenswood Track Renewal - 07/19/1981
Evanston Perm Relocation of Berthing Markers - 07/23/1981
Ravenswood Track Renewal - 07/26/1981
WNW-Milwaukee Single Track Movement - 07/19/1981
Ravenswood Single Track Movement - 08/21/1981
Ravenswood Track Renewal - 08/02/1981
Skokie Track Renewal - 08/02/1981
Evanston Single Track Movement - 08/01/1981
Ravenswood Track Renewal - 08/02/1981
West-South Tower 12 Relocation of Signal 2LA - 08/04/1981
North-South Howard Track Renewal - 08/01/1981
Ravenswood Lincoln Crossover 250 feet of center track Returned to Service - 08/06/1981
Evanston Single Track Movement - 08/29/1981
Ravenswood Track Renewal - 08/30/1981
WNW-Milwaukee Single Track Movement - 09/04/1981
WNW-Milwaukee Single Track Movement - 09/03/1981
Ravenswood Track Renewal - 09/06/1981
North-South Howard Single Track Movement - 09/06/1981
West-South Outer Loop Single Track Movement - 09/13/1981
Ravenswood/Evanston Tracks Out of Service - 09/20/1981
Ravenswood Track Renewal - 09/20/1981
Ravenswood Track Renewal - 09/27/1981
Evanston Greenleaf RH Crossover Perm Out of Service - 10/28/1981
West-South Congress/Wabash Crossover Temp Out of Service - 11/03/1981
Ravenswood Tracks Temp Out of Service - 11/08/1981
Ravenswood Track Renewal - 12/06/1981
West-South Lake St Single Track Movement - 12/05/1981
Evanston South Blvd Storage Track 3rd Rail Installation - 12/10/1981
Station Closings - 01/24/1982
North-South Loyola New SB Platform In Service - 02/22/1982
West-South LaSalle/Lake LH Crossover Perm Out of Service - 07/22/1981
North-South Howard Term Relocation of SB 6 Car Berthing Markers - 10/28/1982
WNW Train Stop Pattern - 02/28/1983
North-South Singe Track Movement - 11/11/1983
North-South Wilson North End Stairway of Unused Platform Out of Service - 11/03/1983
North-South Reroute - 02/26/1984
North-South New Addison Interlocking Signals - 05/31/1987
West-South/Ravenswood Station and Tracks Out of Service and Reroute - 10/30/1987
Ravenswood Change in Service - 11/06/1987
North-South Single Track Movement - 01/17/1988
CERA Railfan Trip Train #1- 05/29/1988
CERA Railfan Trip Train #2 - 05/29/1988
North-South Wilson South Temp Closing - 09/24/1989
Charter Train - 03/18/1990
North-South Track Out of Service/Reroute - 06/17/1990
WNW-Congress Single Track Movement - 07/30/1990
North-Sough Tracks Out of Service - 08/24/1990
WNW Bus Shuttle Between Grand and Damen - 09/30/1990
North-South Howard Terminal Tracks Out of Service - 09/04/1990
North-South Howard Terminal Tracks Out of Service - 09/25/1990
North-South Howard Terminal Tracks Out of Service Cancelled - 09/21/0990
WNW Single Track Movement - 10/08/1990
Ravenswood Tracks Out of Service - 09/23/1990
Skokie Tracks Out of Service - 09/30/1990
North-South Crossover Returned to Service - 09/26/1990
WNW Single Track Movement - 10/27/1990
WNW Single Track Movement - 10/23/1990
Evanston Tracks Out of Service/Single Track/Shuttle Service - 10/28/1990
Movie Charter (Disney)/Tracks Out of Service - 11/08/1990
West-South Single Track Movement - 01/27/1991
Loop Tracks Out of Service - 01/20/1991
Loop Tracks Out of Service - 01/27/1991
WNW Lake Transfer Station In Service - 01/18/1991
West-South Single Track Movement - 01/23/1991
West-South Single Track Movement - 02/02/1991
Loop Tracks Out of Service - 02/10/1991
Workers on Right-of-Way - 01/31/1991
West-South Single Track Movement - 02/10/1991
West-South Single Track Movement - 02/24/1991
North-South Reroute - 02/17/1991
WNW-Subway Signal System Modifications - 02/13/1991
North-South Howard South Interlocking New Signals in Service - 03/03/1991
North-South Howard South Interlocking Out of Service - 03/01/1991
WNW-Subway Signal System Modifications - 02/27/1991
North-South Reroute - 03/10/1991
North-South Reroute Tracks Out of Service - 03/17/1991
North-South Reroute - 03/24/1991
North-South State Street Subway Renewal Conductor Announcements - 03/30/1991
WNW Tracks Out of Service/Reroute - 03/18/1991
Ravenswood Tracks Out of Service - 03/17/1991
Evanston Operation of Weed Sprayer Train - 04/02/1991
North-South Operation of Weed Sprayer Train - 04/01/1991
North-South Ballast Spreading - 04/01/1991
Ravenswood Tracks Out of Service - 04/01/1991
WNW Operation of Weed Sprayer - 04/11/1991
North-South Ballast Spreading - 04/08/1991
North-South State Street Subway Renewal Tracks Out of Service/Reroute - 04/06/1991
Movie Charter Train "Reasonable Doubts" - 04/09/1991
West-South Operation of Weed Sprayer - 04/10/1991
North-South Howard Interlocking Tracks Out of Service - 04/19/1991
Ravenswood Single Track Movement - 04/14/1991
Ravenswood Single Track Movement - 04/28/1991
North-South Reroute - 04/28/1991
North-South Tracks Out of Service/Reroute - 04/29/1991
North-South Tracks Out of Service/Reroute - 05/14/1991
West-South State/Lake Stairway Closing - 05/31/1991
North-South Signals Removed From Service - 05/19/1991
North-South Tracks Out of Service - 05/20/1991
Ravenswood Kimball Yard Tracks Out of Service - 05/24/1991
North-South Tracks Out of Service/Reroute - 06/04/1991
Ravenswood Tracks Out of Service - 05/31/1991
Ravenswood Kimball Terminal Track Returned to Service - 06/12/1991
North-South Howard South Interlocking Crossover and Signal Removed From Service - 06/25/1991
North-South Switch and Crossover Placed Into Service - 06/25/1991
North-South Tracks Out of Service - 06/23/1991
North-South Howard Terminal Track Out of Service - 07/15/1991
Ravenswood Tracks Out of Service - 07/08/1991
Skokie Rail Service Shut Down - 07/08/1991
North-South Jarvis Change in Station Stop - 07/15/1991
Skokie Access Track - 07/11/1991
North-South Howard Terminal Relocation of Berth Markers - 07/22/1991
Skokie Access Track - 09/03/1991
North-South Howard Terminal Track Out of Service - 09/30/1991
North-South Howard North Interlocking Work - 09/30/1991
North-South Portion of Howard West Yard In of Service - 09/28/1991
North-South Howard Loop Track Out of Service - 09/26/1991
Evanston Single Track Movement - 09/27/1991
Evanston New Track In Service - 09/30/1991
Evanston Howard Yard Tracks Placed Into Service - 09/28/1991
Evanston Linden Yard Track Perm Removed From Service - 10/28/1991
Evanston Single Track Movement - 10/25/1991
North-South Track Out of Service - 11/01/1991
Evanston Single Track Movement - 11/22/1991
North-South Reroute - 11/22/1991
North-South Reroute - 11/15/1991
Evanston Single Track Movement - 11/15/1991
North-South Jarvis Station Stop Change - 11/25/1991
Skokie New Hamlin Crossover - 11/25/1991
North-South Howard Terminal Track Returned to Service - 11/25/1991
Skokie Resumption of Service - 11/25/1991
North-South Howard Tracks Out of Service - 12/02/1991
Loop Clark/Lake Station Weekend Closing - 01/03/1992
North-South Reroute - 01/24/1992
North-South Howard Yard Track Removed From Service - 01/24/1992
North-South Track Out of Service - 02/25/1992
North-South Jarvis Change in Station Stop - 02/25/1992
Loop Clark/Lake Station Weekend Closing - 02/09/1992
North-South Single Track Movement - 03/22/1992
Service For 1992 Baseball Season - 04/04/1992
Ravenswood Kimball Yard Storage Capacity - 03/12/1992
North-South Howard North Interlocking Installation of Signals - 04/04/1992
North-South Howard North Interlocking Signal Removed From Service - 04/04/1992
West-South/North-South Crossover Out of Service - 04/03/1992
Loop Track Out of Service - 04/19/1992
Loop Clark/Lake Station Weekend Opening - 04/10/1992
WNW Shuttle Bus Between Racine and Division Due to Flooding - 04/14/1992
West-South/North-South Madison/Wabash Station Open - 04/14/1992
North-South Single Track Movement - 05/09/1992
Evanston Single Track Movement - 05/22/1992
Evanston Single Track Movement - 05/30/1992
Evanston Tracks Out of Service - 06/12/1992
North-South Howard North Interlocking Installation of Signals - 06/22/1992
West-South Crossover Returned to Service - 06/29/1992
West-South Crossover Out of Service - 07/07/1992
North-South Jarvis Change in Station Stop - 07/27/1992
Ali Movie Charter - 03/16/2001
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