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 …

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 …

Tunnels are dug in types of materials varying from soft clay to hard rock.

Fort George Tunnel, IRT Broadway–Seventh Avenue Line (1 train), 2 miles of rock tunnel from 157th Street to Dyckman Street, the second-longest two-track tunnel in the country (after the …

Browse the internet from 47 countries Discover something new, or tunnel back home to enjoy your favourite websites and apps while travelling or living abroad.

4 days ago · Those close to the Gateway program are tight-lipped and treading lightly to avoid more talk of terminating the rail tunnel project under the Hudson.