Cross passage construction near Rockware Avenue, Greenford

From 24 July to 20 August 2025, we will be building cross passage 15 near Rockware Avenue, Greenford. We’re building cross passages between the railway tunnels to allow HS2 passengers to get to a place of safety in an emergency. They are about every 500 metres apart along the tunnels route.

To build the cross passage, we will need to break into the side of the completed tunnel. This might generate some noise and vibration which may be heard or felt as groundborne noise in nearby buildings. We’ll work 24 hours, seven days a week. 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 at night.

Cross passage 15 is about 28 metres below ground and 140 metres away from the closest property.