A tunnel boring machine (TBM) has completed excavating a second bore of the 5-mile-long Northolt Tunnel for the HS2 ...

A second 5-mile railway tunnel has been completed underneath west London after one of HS2's tunnel boring machines arrived at ...

HS2 completed a five-mile tunnel drive under London on Thursday (April 3). The milestone was achieved using one of four giant tunnelling machines being deployed to build the railway’s Northolt Tunnel.

A FIVE-mile drive under London was completed today (3), using one of four giant machines being deployed to build HS2’s Northolt Tunnel.