A five-year construction project on the Chiltern tunnel, the longest tunnel on HS2, has been completed with the close of work at vent shafts at Chesham Road and Little Missenden.

Work is well underway on the project, which was originally estimated to cost £1.1billion. However, estimates have now skyrocketed to close to £7.4billion instead. The major project will be used to ...

THE WORLD’S longest road tunnel leaves drivers without a glimpse of daylight for around 20 minutes as they pass beneath the ...

Construction has finished on HS2's longest tunnel, which includes extensions with ventilation holes carved out to prevent ...

Add Yahoo as a preferred source to see more of our stories on Google. 00 longest tunnels opener laerda Tunnels are used to carry traffic through some of the most extreme terrain on the planet and they ...

The Northern Line currently holds the record at 17 miles, having opened back in 1937. But the Woodsmith Mine Tunnel is on ...

Construction of the 16km Chiltern tunnel - the longest on the High Speed 2 route - has been completed after nearly five years of work. HS2 Ltd confirmed ...

Traveling through tunnels is usually just a normal part of a trip, but the Laerdal Tunnel in Norway is something special. The ...

Tunnels are used to carry traffic through some of the most extreme terrain on the planet and they help ease journeys with reduced travel time. While most tunnels offer a short underground burst of ...