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  1. The Underground Pedestrian Tunnel Network in Dallas - AMLI

    Aug 28, 2024 · Did you know that Dallas has an underground tunnel system? It’s true! A three-mile-long system of pedestrian tunnels and sky bridges connect most of Downtown Dallas’s …

  2. Discovering the Hidden World: Dallas Pedestrian Tunnels Exploration

    Aug 13, 2024 · In the bustling heart of Dallas, a city known for its skyscrapers, sprawling suburbs, and vibrant culture, lies a secret world that few know about—an extensive network of …

  3. Tunnel - Wikipedia

    It is dug through surrounding soil, earth or rock, or laid under water, and is usually completely enclosed except for the two portals common at each end, though there may be access and …

  4. Tunnels and underground excavations | History, Methods, Uses, …

    Dec 19, 2025 · tunnels and underground excavations, horizontal underground passageway produced by excavation or occasionally by nature’s action in dissolving a soluble rock, such as …

  5. TUNNEL Definition & Meaning - Merriam-Webster

    The meaning of TUNNEL is a covered passageway; specifically : a horizontal passageway through or under an obstruction. How to use tunnel in a sentence.

  6. TUNNEL | English meaning - Cambridge Dictionary

    TUNNEL definition: 1. a long passage under or through the ground, especially one made by people: 2. the long passage…. Learn more.

  7. TUNNEL Definition & Meaning | Dictionary.com

    TUNNEL definition: an underground passage. See examples of tunnel used in a sentence.

  8. Big D’s Hidden Depths: The Underground City - DALtoday

    Aug 5, 2024 · Dallas boasts a secret world beneath its bustling streets: an extensive network of pedestrian tunnels known as the Dallas Underground. This subterranean labyrinth was once …

  9. Tunnel - New World Encyclopedia

    In general, tunnels are at least twice as long as they are wide and are completely enclosed on all sides, save for the openings at each end. A tunnel may be used by pedestrians, cyclists, motor …

  10. Tunnel construction - Wikipedia

    Tunnels are dug in types of materials varying from soft clay to hard rock.