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 …

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 …

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

A federal judge has ordered the Trump administration to restore funding for a new rail tunnel between New York and New Jersey.

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

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

Define tunnel. tunnel synonyms, tunnel pronunciation, tunnel translation, English dictionary definition of tunnel. n. 1. An underground or underwater passage. 2. A passage through or under a barrier such …

Feb 6, 2026 · The Gateway Program's Hudson River tunnel construction is set to shut down indefinitely Friday after the Trump administration pulled federal funding for the $16 billion infrastructure project in ...

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...

4 days ago · (mining) A level passage driven across the measures, or at right angles to veins which it is desired to reach; distinguished from the drift, or gangway, which is led along the vein when reached …