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 …

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 limestone. A …

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

Constructing a tunnel is one of the most complex challenges in the field of civil engineering. Learn about the basics behind tunnels.

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

4 days ago · Federal funding for the $16 billion Gateway rail tunnel between New York City and New Jersey, which had been suspended for more than four months, began to flow again on Friday after …

Dec 4, 2025 · Contrary to showing only advanced tunneling technology, these tunnels are a hallmark of mankind’s ability to build structures that overcome geographical barriers. Modern tunnel …

11 hours ago · The Trump administration has released another $77 million in frozen federal funding for the $16 billion Hudson Tunnel Project, New York Governor Kathy Hochul said on Tuesday, as a …

A tunnel is a long passage which has been made under the ground, usually through a hill or under the sea. Boston drivers love the tunnel.

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