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

Work is well underway on the project, which was originally estimated to cost £1.1billion. However, estimates have now ...

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 ...

Yet one of its lines holds the title of having the longest tunnel in the UK. The Northern Line stretches for an impressive 17 miles and has carried millions of passengers since it opening in 1937.

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

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

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

HS2 has finished the civil engineering stage of its longest tunnel, the 16km Chiltern tunnel connecting London and Birmingham ...

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