CTA Surface System History presented by the Illinois Railway Museum

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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 - 0118/1978
  • 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 - 0/30/1981
  • 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 - 12/06/1981
  • 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" - 04/08/1991
  • 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 - 06/15/1991
  • 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 - 09/29/1991
  • 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
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