A third of HS2 tunnelling between London and the West Midlands is now complete.
https://www.independent.co.uk/business/hs2-railway-line-key-numbers-b2423758.html
https://www.independent.co.uk/business/hs2-railway-line-key-numbers-b2423758.html
HS2 railway line: Key numbers
www.independent.co.ukA third of HS2 tunnelling between London and the West Midlands is now complete.