Concrete pours at Mandeville Road vent shaft site – September and October 2025
Work item: HS2-SCS-25-1247
Work Item Summary
- Project Phase
- Phase 1
- Region
- Brent and Ealing, London
- Location
- Mandeville Road
- Worksite Name
- Mandeville Road
- Contractor
- SCS JV
- Type of works
- Concrete pours
- Estimated Start Date
- 01/09/2025
- Estimated End Date
- 31/10/2025
What we are doing
Safe stop down to SCS works from 10 October
Safety is our number one priority at HS2. Following an incident that occurred at the Green Park Way site in Ealing, works are being safely halted across the London Tunnels section of the route, including sites in Ealing. While no workers were physically harmed, our contractor, Skanska Costain STRABAG joint venture, is undertaking a comprehensive review of safety procedures and leadership on their sites before a safe restart can take place.
Works will be brought to a safe stop and will remain on hold until we’re satisfied that all appropriate measures are in place to protect the workforce. We anticipate the review may take a number of weeks depending on the area and the type of work involved.
We will provide details on when the safe stop will be in place over the course of the next week.
We are planning four concrete pours in September and five in October. These concrete pours are for works in the main shaft and to build the headhouse base slab. We will let you know when the dates are confirmed.
The concrete pours can take around 16 to 20 hours. We expect all the pours to start at 6am but they will have varied finish times.
There will be a delivery of machinery between 4am and 5am in advance of the concrete pour. The machinery will be removed once the concrete pour is complete. We will close Mandeville Road for about 15 minutes to reverse a lorry out of the site to remove the machinery.
While on-site work is not expected to cause additional disruption, there will be periods of noise from the concrete pour and concrete delivery vehicles. Traffic marshals will guide delivery vehicles as usual. Noise and vibration monitoring will also continue.
Download information relating to these works
If you have a question about HS2 or our works, please contact our HS2 Helpdesk team on 08081 434 434 or email [email protected]