TBM Lydia - HS2 Atlas Road Logistics Tunnel
London, UK (Atlas Road to Old Oak Common Station) · 2023-2024 (Launched April 2023, completed January 2024) · £87.7bn - £102.7bn (HS2 project total, 2025 prices)
The judgement call
Account-gated at launchTBM Lydia was a refurbished Crossrail TBM, demonstrating reuse of heavy plant. The tunnel will be used to deliver materials and remove spoil for the Euston Tunnel.
Key engineering challenges
Creating a logistics tunnel to support main Euston tunnel works. - Breaking through into Old Oak Common Station box.
Project facts
- Client / owner
- HS2 Ltd.
- Lead contractor
- SCS JV (Skanska Costain STRABAG Joint Venture)
- Lead designers
- —
- Project type
- new build
- Scale
- TBM weight: 847 tonnes; Tunnel length: 853 metres; TBM diameter: 6.2 meters
- Disciplines
- civil; structural; mechanical; electrical; systems; tunnelling; geotechnical
- Standards & frameworks
- UK railway standards, CDM Regulations (implied).
Sources: SCS JV (https://scsjv.co.uk/completion-of-hs2-logistics-tunnel-paves-the-way-for-high-speed-line-to-euston/) - New Civil Engineer (https://www.newcivilengineer.com/latest/tbm-breaks-through-at-hs2s-old-oak-common-site-completing-logistics-tunnel-23-01-2024/) - HS2.org.uk (https://www.hs2.org.uk/work-items/update-atlas-road-logistics-tunnel-works/) - RailwayPro (https://www.railwaypro.com/wp/hs2-launches-the-final-tbm-for-the-euston-tunnel/)