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 …

Dec 19, 2025 · Tunnels and underground excavations, horizontal underground passageway produced by excavation or occasionally by nature’s action in dissolving a soluble rock. Tunnels …

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

Jan 9, 2015 · 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: an underground passage. See examples of tunnel used 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.

Oct 14, 2024 · The U.S. Forest Service said the Gilman Tunnels, located in the Jemez Ranger District of the Santa Fe National Forest, will be closed as crews conduct a rock stabilization …

Two narrow and unusually high tunnels were cut through Precambrian granite in the 1920s to facilitate passage of logging trains through this particularly rugged and constricted section of …

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.

Built in the 1920s, the tunnels used to be a part of the former Santa Fe Northwestern Railway (SFNW). They are even named after a CEO of the SFNW—William H. Gilman. Till 1941 the …