High Speed 2 project, the HS2 TBM 'Florence' breakthrough after boring 16km long Chiltern tunnel. Florence is one of the 10 giant Herrenknecht Tunnel Boring Machines that are used. Photo has date 27 February 2024

London, United Kingdom.

HS2 media https://mediacentre.hs2.org.uk/news/breakthrough-for-hs2s-longest-tunnel

https://mediacentre.hs2.org.uk/resources/f/construction/chiltern-tunnels/images-tunnelling-and-the-south-portal-compound