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 …

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 …

13 hours ago · Construction on the massive $16 billion Hudson Tunnel Project will resume next week after the Trump administration on Wednesday released $127 million in frozen funding, New York …

7 hours ago · Gateway tunnel work to resume after Trump DOT ordered to release funds The rail tunnel under the Hudson River, between New Jersey and New York, is meant to expand service along the …

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.