Job Done: Work Finishes on Boring Northolt Tunnel

Job done: work finishes on boring Northolt Tunnel

HS2 high-speed railway has passed a major milestone with excavation of the 8.4-mile Northolt Tunnel now complete.

HS2 completes 8.4-mile tunnels under west London ahead of Euston TBM launch

Two 8.4-mile-long HS2 railway tunnels under west London have been completed after the last of the four tunnel boring machines finished its drive yesterday. Northolt Tunnel with flat tunnel invert on the base (c) HS2 The Northolt Tunnel runs between West Ruislip at the outer edge of the capital and the new Old Oak Common station in west London, and was dug by four TBMs leaving at either end and heading to the centre, where they were removed from …