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  1. 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 …

  2. 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.

  3. How Tunnels Work - HowStuffWorks

    In this article, we'll explore what makes tunnels such an attractive solution for railways, roadways, public utilities and telecommunications. We'll look at the defining characteristics of tunnels and …

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

    tunnels and underground excavations, horizontal underground passageway produced by excavation or occasionally by nature’s action in dissolving a soluble rock, such as limestone. A …

  5. 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.

  6. Trump says Gateway tunnel is terminated. How did we get here?

    4 days ago · A tunnel is under construction in Manhattan that will connect the new $18 billion Hudson River rail tunnel to New York Penn Station on Thursday, Oct. 2, in New York. …

  7. $16 billion Gateway Tunnel not dead: Duffy says project under …

    Oct 29, 2025 · Is the $16 billion Gateway rail Tunnel alive? After Trump canceled it on Oct. 15, another administration official said it's still alive and being reviewed.

  8. Delaware Aqueduct: The World's Longest Tunnel Burrows Under …

    1 day ago · What Is The Longest Tunnel In The World? It Runs 137 Kilometers Under New York With Famously Tasty Water Beneath your feet, the world's longest tunnel quietly gets down to …

  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. Home - Gateway Program

    The Hudson Tunnel Project will make two crucial improvements to the national rail network: Building nine miles of new passenger rail track between New York and New Jersey, including …