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People who like UK High Speed 2 TBM Cecilia breaks through after boring the longest tunnel of HS2 project at Chiltern Hills

    Kris Lubcek

    UK High Speed 2 TBM Cecilia breaks through after boring the longest tunnel of HS2 project at Chiltern Hills

    By Kris Lubcek in the group Tunnel Breakthrough Moments Replies (1) Last reply by Santiago Morales
    This is my 5 cents for tunnel breakthroughs; The second giant boring machine (TBM) building HS2 under the Chiltern Hills broke through at the tunnel’s northern portal, completing a journey that began in June...

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    cover tunnel photo by: Matt Brown from London, England / CC BY

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