A tunnel is an underground or undersea passageway. It is dug through surrounding soil, earth or rock, or laid under water, and is usually completely enclosed except for the two portals …

In 2023, we carried more traffic than any bridge and tunnel authority in the nation—more than 336 million vehicles. Surplus revenues from our tolls help support MTA public transit services.

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 …

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

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

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

The Trump’s administration is citing the government shutdown in explaining why it's holding up roughly $18 billion for a new rail tunnel beneath the Hudson River between New York City and …

May 30, 2025 · The Hudson Tunnel Project, a venture from The Gateway Program, will create nine miles of new passenger rail tracks between New York and New Jersey, including a new, …

In general, tunnels are at least twice as long as they are wide and are completely enclosed on all sides, save for the openings at each end. A tunnel may be used by pedestrians, cyclists, motor …

Definition of tunnel noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.