Building a new railway, up to 40 metres deep through the heart of the capital, is an incredible engineering achievement. The tunnels weave their way through the city’s underground landscape, within touching distance of existing railways as well as beneath some of the most historic buildings in London.
Building the new rail tunnels was a key part of Crossrail’s story. Crossrail tunnelling began in May 2012 and ended at Farringdon with the arrival of tunnelling machine Victoria.
For three years, eight 1,000 tonne tunnelling machines have bored 42km or 26 miles of new 6.2 metres diameter rail tunnels under London.
A dedicated team worked 24 hours a day to complete the tunnels for Europe's largest civil engineering project with thousands of others employed to upgrade the existing rail network and build major new stations in central London and Docklands.
Crossrail’s deep, large-scale route under London comprised three distinct underground spaces:
Explore how some of the deepest, largest and longest tunnels were made in the most extensive underground building project in a generation.
From 2018 new Elizabeth line trains will transport up to 72,000 passengers per hour through these new tunnels, increasing rail capacity and reducing journey times for everyone who crosses the capital.