The engagement of this project has ended
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Align, the Main Works Contractor for the Colne Valley Viaduct and the Chiltern Tunnel will be carrying out the following planned works starting April 2019 for a period of 4 weeks:
More details about the sequence of works can be found in the works notice here .
Find out more about our plans in this area here or come along to our local drop-in session in Great Missenden.
You can also keep up to date and read more project news in Buckinghamshire here .
If you have any questions, please do not hesitate to contact the HS2 enquiries team on 08081 434 434 or via