First tunnelling breakthrough on HS2

HS2 is celebrating the first tunnelling breakthrough on the project.
A 2,000-tonne TBM named ‘Dorothy’ – after Dorothy Hodgkin, who in 1964 became the first British woman to win the Nobel Prize in Chemistry – has completed its one-mile dig under Long Itchington Wood in Warwickshire.
The 125m long TBM started its journey at the tunnel’s North Portal in December 2021 and broke through the wall of the reception box at the South Portal site on Friday.Nearly 400 people w