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STV/DPM
STV 100th Anniversary
  Block 37 Station and Tunnel Connector (Chicago, IL)


The Chicago Transit Authority decided to connect O’Hare and Midway Airports by means of an express train service with luggage check. STV was hired to design two short connecting subway tunnels under a tight schedule and with minimal disruptions to the 24/7 subway service. The project involves constructing in soft clay and performing heavy structural steel and concrete work to provide for the subway connections and track crossovers.

download project sheet (223,661 KB PDF)

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