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Clark/Lake is a Chicago 'L' station located at 100/124 West Lake Street in Chicago's Loop district, and is accessed from the James R. Thompson Center and 203 North LaSalle building. It is one of the most complex stations on the 'L' system, comprising an elevated station and a subway station. The elevated station is serviced by the Brown, Green, Orange, Pink, and Purple Lines, while the subway platform is serviced by the Blue Line. In December 2014 it had an average of 17,644 weekday passenger entrances, making it the second busiest station in the 'L' system.[4] The Richard J. Daley Center, Chicago City Hall, and Chicago Title and Trust Center are also served by the station. It is the busiest station on the Loop Elevated, and the second-busiest station on the 'L' system as of December 2014. This station has been recognized as the station(s) with the most pickpockets by ABC 7 Chicago.[5]


Chicago 'L' rapid transit station
Under the canopy at Clark-Lake.jpg
Clark/Lake elevated platforms
Location100-124 West Lake Street
Chicago, Illinois 60601
Coordinates41°53′09″N 87°37′51″W / 41.885767°N 87.630886°W / 41.885767; -87.630886
Owned byChicago Transit Authority (elevated)
City of Chicago (subway)
Line(s)Milwaukee-Dearborn Subway
Loop Elevated
Platforms2 Side platforms (elevated)
1 Island platform (subway)
Tracks4 (2 on each level)
Structure typeSubway (Blue) & Elevated (Loop)
Depth40 ft (12 m) (Blue Line platform)
Platform levels3
Bicycle facilitiesYes
Disabled accessYes
OpenedElevated Platforms: September 22, 1895[1][2]
Subway Platform: February 25, 1951
Rebuilt1988–92 (elevated station)
Previous namesLake Transfer (Subway)
Passengers (2017)6,022,533[3]Increase 0.8% (CTA)
Rank2 out of 143
Preceding station Chicago "L" Following station
Milwaukee-Dearborn Subway
toward O'Hare Pictograms-nps-airport.svg
Blue Line Washington
Grand Blue Line
Various special services
Loop Elevated
One-way operation
Orange Line State/Lake
toward Midway Pictograms-nps-airport.svg
Clinton Green Line State/Lake
Merchandise Mart
One-way operation
Purple Line
toward Linden
One-way operation
Pink Line State/Lake
Merchandise Mart
toward Kimball
Brown Line State/Lake
One-way operation
Brown Line
Rush period special
Former services
Preceding station Chicago North Shore and Milwaukee Railroad Following station
Merchandise Mart
toward Milwaukee
North Shore Line Randolph/Wabash
One-way operation
Preceding station Chicago "L" Following station
One-way operation
Loop Shuttle State/Lake
Next clockwise


Clark/Lake is a super station consisting of two stations that have been merged into one.[6] The original elevated station opened on September 22, 1895 as one of three stations on the Lake Street Elevated Railroad's "Wabash extension".[1][2] This extension became the Lake Street leg of the Union Loop when it was completed in 1897. The subway station opened as Lake Transfer on February 25, 1951. From 1988 to 1992, the elevated station was reconstructed, with its main entrance in the James R. Thompson Center. This allows transfers between the elevated station and the subway station without leaving the paid area, and so the stations were combined into a single station. Due to this, it is the only station that serves six of the eight lines. The Blue Line serves the subway station while the Green Line stops at both sides of the elevated station, Orange, Pink and Purple Line trains stop at the Inner Loop platform, and Brown Line trains stop at the Outer Loop platform.

Bus connectionsEdit


  • 22 Clark (Owl Service)
  • 24 Wentworth (Weekdays only)
  • 134 Stockton/LaSalle Express (Weekday Rush Hours only)
  • 135 Clarendon/LaSalle Express (Weekday Rush Hours only)
  • 136 Sheridan/LaSalle Express (Weekday Rush Hours only)
  • 156 LaSalle (Weekdays only)

Notes and referencesEdit



  1. ^ a b "Service on Lake Street "L" Extension". Chicago Daily Tribune. September 20, 1895. p. 12.
  2. ^ a b "Put in New Rails". Chicago Daily Tribune. September 23, 1895. p. 11.
  3. ^ "Annual Ridership Report – Calendar Year 2017" (PDF). Chicago Transit Authority, Ridership Analysis and Reporting. January 31, 2018. Retrieved July 29, 2018.
  4. ^ "Monthly Ridership Report – December 2015" (PDF). Chicago Transit Authority Ridership Analysis and Reporting. January 11, 2015. Archived from the original (PDF) on February 4, 2018. Retrieved March 1, 2016.
  5. ^
  6. ^ Clark/Lake Chicago-'L'.org (URL accessed September 23, 2006).

External linksEdit