The governments decision to re-phase High Speed 2s (HS2s) Euston terminus by two years has caused issues with London tunnelling including lost efficiencies, according to a chief engineer on the project.

https://www.newcivilengineer.com/latest/hs2-deferral-of-euston-station-leads-to-lost-efficiencies-in-london-tunnelling-12-10-2023/