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 …

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

Free topo maps of the most popular Tunnels in Henderson County, NC - with GPS coordinates, pictures, and more including Hendersonville, Fletcher, and Etowah.

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 …

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

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.

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

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 …

Tunnel definition: A passage through or under a barrier such as a mountain.

6 hours ago · Sections of the German-made tunnel boring machines were shipped to ports in Elizabeth and Baltimore. They will reach North Bergen later this month.