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.

2 days ago · Construction of the $16 billion Gateway rail tunnel under the Hudson River was stopped Tuesday because the project is out of money due to a stalemate in Washington.

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 construction...

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

2 days ago · Construction on the critical Gateway Tunnel Project linking New York and New Jersey may be halted soon unless President Trump changes course, officials said.

1 day ago · A tunnel is under construction in Manhattan that will connect the Hudson River rail tunnel to New York Penn Station on Thursday, Oct. 2, 2025, in New York. (AP Photo/Ted Shaffrey) From …

A tunnel is an underground structure which is constructed through the surrounding mass of soil or rock. Typically, a tunnel’s length is much greater than its width. Tunnels are designed to withstand earth …