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  2. Houston tunnel system - Wikipedia

    en.wikipedia.org/wiki/Houston_tunnel_system

    A tunnel in the west part of the downtown loop. The Houston tunnel system is a network of subterranean, climate-controlled, pedestrian walkways that links 95 full city blocks 20 feet (6 m) below Houston's downtown streets. It is approximately six miles (9.7 km) long. [1]

  3. Dallas Pedestrian Network - Wikipedia

    en.wikipedia.org/wiki/Dallas_Pedestrian_Network

    2009 Map of the Dallas Pedestrian Network. The Dallas Pedestrian Network or Dallas Pedway is a system of grade-separated walkways covering thirty-six city blocks of Downtown Dallas, Texas, United States. [1] The system connects buildings, garages and parks through tunnels and above-ground skybridges.

  4. List of tunnels in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_tunnels_in_the...

    Lytle Tunnel, tri freeway tunnels, I-71 under Lytle Park, downtown Cincinnati, 1,099 feet (335 m); the tri tunnels are side by side, from west to east: a two-lane I-71 southbound tunnel a one lane southbound tunnel for the I-71 exit ramp to Downtown/Riverfront/Third Street

  5. Downtown Tunnel - Wikipedia

    en.wikipedia.org/wiki/Downtown_Tunnel

    The Downtown Tunnel on Interstate 264 (I-264) and U.S. Route 460 Alternate (US 460 Alt.) crosses the Southern Branch of the Elizabeth River in the South Hampton Roads area of Virginia, US. It links the independent City of Portsmouth with the independent City of Norfolk .

  6. Chicago Pedway - Wikipedia

    en.wikipedia.org/wiki/Chicago_Pedway

    OpenStreetMap map of the Pedway Sign of the Chicago Pedway. An underground Pedway tunnel Inside a Pedway bridge between the Ogilvie Transportation Center and 2 North Riverside Plaza The Chicago Pedway is a network of tunnels , ground-level concourses and bridges in Chicago, Illinois connecting skyscrapers, retail stores, hotels, and train ...

  7. Downtown Hudson Tubes - Wikipedia

    en.wikipedia.org/wiki/Downtown_Hudson_Tubes

    The tunnels were the second non-waterborne connection between Manhattan and New Jersey, after the Uptown Hudson Tubes. [7]: 15 The idea for the downtown tunnels was devised by another company in 1903, the Hudson and Manhattan Railroad Corporation (H&M).

  8. Oklahoma City Underground - Wikipedia

    en.wikipedia.org/wiki/Oklahoma_City_Underground

    The tunnels were a vibrant part of the OKC landscape, including several shops and restaurants, but lost much of their popularity with the end of the last oil boom. [ 1 ] Originally named the Conncourse , in honor of Oklahoma City banker Jack Conn, [ 2 ] it was renamed the Underground after an extensive facelift conducted by architect Rand ...

  9. List of bridges and tunnels in New York City - Wikipedia

    en.wikipedia.org/wiki/List_of_bridges_and...

    The Holland Tunnel is the oldest of the vehicular tunnels, opening to great fanfare in 1927 as the first mechanically ventilated underwater tunnel. The Queens Midtown Tunnel was opened in 1940 to relieve the congestion on the city's bridges. Each of its tubes were designed 1.5 feet (0.46 m) wider than the Holland Tunnel in order to accommodate ...