Chicago Transit Authority:
West platform-to-mezzanine stairway demolition in process
Chicago Transit Authority:
Staircase Down from Clark Mezzanine Demolition Progress
Chicago Transit Authority:
Southeast Clark Street Entry Staircase
Chicago Transit Authority:
South Clark Mezzanine Corridor
Chicago Transit Authority:
Northwest Clark St Entrance new Staircase Pour
Chicago Transit Authority:
North Clark Mezzanine Corridor
Chicago Transit Authority:
Clark Mezzanine Progress Photo looking West