The Western tunnel portal is currently being constructed. This is the launch site that the Tunnel Boring Machines that will construct the Northolt Tunnel section of the HS2 route.
Breakspear Rd Sth
Piling and other preparatory works are taking place to create strong ground foundations to allow for the construction of the Bridge over Breakspear Road South and the Bridge over the River Pinn.
Enabling earthwork activities are taking place to make way for the construction the Copthall Tunnel and the Northern & Southern Sustainable Placement Areas. We are also carrying out enabling works in preparation for the realignment of Harvil Road.