Excavation of HS2’s longest tunnel completed

Posted on January 21, 2026 by Guest authors

View inside Chiltern tunnel. // Credit: HS2 Civil engineering construction work on the Chiltern tunnel, the longest tunnel on HS2, has been completed.

Posted in Buckinghamshire, Great Missenden, Hertfordshire, HS2, Infrastructure, Network, Rail NewsTagged Rail Advent

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October 7, 2026
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Engineers have completed the construction of the central section of the 1-mile-long ‘green’ tunnel for HS2 at Wendover in Buckinghamshire.

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September 26, 2024
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Emergency repairs to the railway between Aylesbury and London Marylebone will mean that journeys on Thursday 26th and Friday 27th of September will be disrupted.…

Buckinghamshire
HS2
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Major milestone reached for HS2 green tunnel in Buckinghamshire

Guest authors
October 7, 2026
0

Engineers have completed the construction of the central section of the 1-mile-long ‘green’ tunnel for HS2 at Wendover in Buckinghamshire.

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