Update: Cross passage construction near Carr Road, Northolt

What we are doing

Update: The works to build cross passage 19 near Carr Road, Northolt are extended until 23 March 2025 due to additional tunnel preparation requirements.

From 7 February to 23 March 2025, we will be constructing cross passage 19 below the ground, near Carr Road, Northolt.

We’ll work 24 hours a day, seven days a week. During this time there will be periods of noisy works. To avoid overnight disturbance, we’ll limit noisy activities to between 7am and 10pm Monday to Friday, 7am to 6pm on Saturday and 10 am to 3pm on Sunday and carry out quieter works during the night.

Cross passages between the tunnels will allow HS2 passengers to get to a place of safety in an emergency, and are approximately 500 metres apart along the route.

Cross passage construction involves breaking into the side of the completed tunnel. This might generate some noise and vibration which may be heard or felt as ground borne noise in nearby buildings when transmitted through the ground to the surface.

This cross passage is about 21 metres below ground and 30 metres away from the closest property.

Download information relating to these works

• Cross passage construction near Carr Road, Northolt

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]