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Progress and Challenges of HS2's Northolt Tunnel Project

    Keith Keloe
    By Keith Keloe

    The Northolt tunnel project under High Speed 2 (HS2) is making significant steps forward, with all four tunnel boring machines (TBMs) now operational.
    https://www.thecivilengineer.org/news/progress-and-challenges-of-hs2s-northolt-tunnel-project

     

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