Projects · Rail
Colne Valley Viaduct, Hertfordshire (representative point on line)·Under wayRail
HS2 Phase One (London–West Midlands)
- StageCivils works at maximum effort; programme reset under way, new cost and schedule not yet published (Mar 2026)
- Next milestoneFinish civil works, then start rail systems installation; publish new cost and schedule
- Last checked1 November 2026
What has changed on this project, and when
- Next milestone: Finish civil works, then start rail systems installation; publish new cost and schedule2 November 2026 · previously: Complete civils/tunnelling and start track and systems installation across Phase One.
- Stage: Civils works at maximum effort; programme reset under way, new cost and schedule not yet published (Mar 2026)2 November 2026 · previously: active
- Value: £43.6bn spent by end Feb 2026; total cost not published2 November 2026 · previously: £45bn+ (Phase 1)
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