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 ventilation …

Sep 29, 2025 · The tunnel is so large that building it will cause the ground to vibrate along its 6.5-mile path down I-35 and East Cesar Chavez Street, creating uncertainty about the risks to nearby structures.

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

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 vertical opening is …

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

Dec 4, 2025 · Explore the world’s 10 longest tunnels, record-breaking engineering marvels that push the limits of design, scale, and human ambition.

Jul 31, 2025 · A tunnel is a horizontal or slightly inclined underground passage. Learn about the definition, components, and types of tunnels, including hydraulic and traffic tunnels.

May 28, 2025 · To prevent flooding in Austin, the Texas Department of Transportation (TxDOT) plans to create a drainage tunnel and pump station, the agency said in a news release.

Dec 2, 2025 · The world’s longest and deepest undersea road tunnel is being built in Norway, intended to cut travel time between major cities and become part of a ferry-free highway along its western coast.