The Chesapeake Bay Bridge–Tunnel (CBBT, officially the Lucius J. Kellam Jr. Bridge–Tunnel) is a 17.6-mile (28.3 km) bridge–tunnel that crosses the mouth of the Chesapeake Bay between Delmarva and …

Travel over 17.6 miles of engineering innovation without a single stop sign, traffic light or intersection in sight. @2022 CBBT. All rights reserved.

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.

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

Officially named the Lucius J. Kellam Jr. Bridge-Tunnel in honor of the individual who was instrumental in making it a reality, the Chesapeake Bay Bridge-Tunnel is the largest bridge-tunnel complex in the …

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

Dec 2, 2025 · The world’s longest and deepest undersea road tunnel is being built in Norway, intended to cut travel time between major cities and become part of a ferry-free highway along its western coast.

1 day ago · The first of five early Gateway Tunnel projects is almost finished and tunnel boring machines on the way. When is the federal government going to resume payments?

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 …