Update: Next phase of ventilation shaft construction at Canterbury Works site

What we are doing

Whilst we continue works at the Canterbury Works site to construct the ventilation shaft, we would like to remind you that this site is permitted to operate for 16 hours (7am to 11pm), 5 days a week in agreement with Bent Council. Please note that this does not mean will we be working constantly throughout this period, but there will be activities relating to shaft construction where we will be working extended hours.

Construction of the adit connections within the shaft
Works are ongoing on site to construct the ventilation shaft. We have now reached the next phase of shaft construction where we will be excavating the shaft adit (horizonal passages below ground) that will connect to the future HS2 tunnels.
To construct the adit we will use and excavator to break through the sprayed concrete lining (SCL) of the shaft wall and continue to excavate underground lining the excavated area with sprayed concrete as we progress.

What to expect
Construction of the adit will carry on until the end of February 2023. On Mondays from 8am, lasting approximately 3 hours, we will be breaking out the head wall at the end of the adit after each weekend break. The site team must spray the head wall to full thickness to reduce the impact from settlement on the surrounding area at the end of each week. You may notice additional noise and vibration from the breaking out of the SCL but as we advance into the tunnel this will be reduced.
What we will do To help minimise disruption during the extended hours we will carry out works that may cause greater noise during our core hours on 8am to 6pm Monday to Friday. We will continue to monitor our working methods and implement noise training to site teams working at night and advise them to be mindful of the community during works.

The ventilation shaft has a diameter of 15 metres and is currently 36 metres deep. The adit will be dug 25 metres below ground. The construction teams in your local area are committed to minimising disruption as much as possible. You can find out how we manage the impacts of construction at www.hs2.org.uk/in-your-area/managing-impacts-of-construction/
Speak to our local engagement team We understand that construction can be frustrating for residents nearby our sites. Your local engagement team are happy to speak with you in person or virtually about any questions or concerns you have about our works in your local area.
We hold virtual drop-ins on the third Wednesday of each month – Our next virtual drop-in is on Wednesday the 19 October 2022. For more information regarding our drop-ins, please visit www.hs2.org.uk/events/ .
Please contact the HS2 Helpdesk If you are not able to attend a drop-in and would like to speak with us at another time.

Download information relating to these works

• Next phase of ventilation shaft construction at Canterbury Works site

Find out more about

• Brent and Ealing

If you have a question about HS2 or our works, please contact our HS2 Helpdesk team on 08081 434 434 or email [email protected]