Clark/Lake (CTA station)

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Clark Lake CTA 060716.jpg
Clark/Lake elevated platforms
Station statistics
Address 100-124 West Lake Street
Chicago, Illinois 60601
Coordinates 41°53′09″N 87°37′51″W / 41.885767°N 87.630886°W / 41.885767; -87.630886
  Purple Line weekday rush hours only
Structure type Subway (Blue) & Elevated (Loop)
Depth 40 ft (Blue Line platform)
Levels 3
Platforms 2 Side platforms (elevated)
1 Island platform (subway)
Tracks 2
Bicycle facilities Yes
Other information

Elevated Platforms: September 22, 1895[1][2]

Subway Platform: February 25, 1951
Rebuilt March 23, 1992
Accessible Handicapped/disabled access
Owned by Chicago Transit Authority (elevated)
City of Chicago (subway)
Formerly Lake Transfer (Subway)
Passengers (2012) 5,650,945 Increase 5.2% (CTA)
Preceding station   Chicago 'L'   Following station
Subway station
toward O'Hare
Blue Line
toward Forest Park
Elevated Through-route
toward Harlem/Lake
Green Line
Loop Station Service
One-way operation
Brown Line
toward Kimball
One-way operation
Orange Line
toward Midway
One-way operation
Purple Line
toward Linden
One-way operation
Pink Line
toward 54th/Cermak

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 June 2012 it had an average of 20,765 weekday passenger entrances, making it the busiest station in the 'L' system.[3] The Richard J. Daley Center, Chicago City Hall, and Chicago Title and Trust Center are also served by the station.

Station layout[edit]

Platform level
Side platform, doors will open on the right
Counterclockwise Green Line toward Harlem/Lake (Clinton)
Brown Line toward Kimball (Merchandise Mart)
(No service: Washington/Wells)
Clockwise Green Line toward Ashland/63rd or Cottage Grove (State/Lake)
Purple Line toward Linden weekday rush hours only (State/Lake)
Pink Line toward 54th/Cermak (State/Lake)
Orange Line toward Midway (State/Lake)
Side platform, doors will open on the right
G Street level Entrance/Exit
B1 Mezzanine Fare control
Platform level
Northbound Blue Line toward O'Hare (Grand)
Island platform, doors will open on the left
Southbound Blue Line toward Forest Park (Washington)


Clark/Lake is a super station consisting of two stations that have been merged into one.[4] 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 in the Dearborn Street Subway on February 25, 1951. In 1992, the elevated station was reconstructed, with its main entrance in the James R. Thompson Center. This enabled transfer between the elevated and subway platforms without leaving the paid area, and so the stations were combined into a single facility. Due to this, it is the one station that serves six of the eight lines. The Blue Line services the subway station while the Green, Orange, Brown, Pink and Purple (express) lines serve the elevated station.

Bus connections[edit]


  • #22 Clark (Owl Service)
  • #24 Wentworth
  • #134 Stockton/LaSalle Express
  • #135 Clarendon/LaSalle Express
  • #136 Sheridan/LaSalle Express
  • #156 LaSalle


  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. ^ Rail Ridership by Branch and Entrance. Chicago Transit Authority.
  4. ^ Clark/Lake Chicago-'L'.org (URL accessed September 23, 2006).

External links[edit]

Media related to Clark/Lake (CTA) at Wikimedia Commons

Clark/Lake subway platform in 2009
Clark/Lake subway platform in 2013