The southern, London tunnels section, comprises construction of 26 miles of tunnels between Euston and West Ruislip, as well as numerous viaducts, bridges and embankments.
We’re using six giant tunnel boring machines (TBMs) to excavate the 21km route, while a seventh TBM will excavate a logistics tunnel, to be used to bring construction materials into the tunnels and remove muck. The twin-bore tunnels we’re constructing are 13 miles long and up to 50 metres deep.
Our teams are working on 23 main sites at Euston, Old Oak Common and West Ruislip – employing around 5,000 people, including supply chain. This includes people from local communities, 600 of whom who were previously unemployed. We have also trained some 160 apprentices and helped those who were previously homeless, long-term unemployed or vulnerable for other reasons.
