HS2 completes excavation of 8.4 mile tunnel under the capital

Construction of Britain’s new high-speed railway has passed a major milestone with excavation of the 8.4-mile Northolt Tunnel under London. The fourth of four tunnel boring machines (TBMs) being used to dig the twin-bore tunnel – the second-longest on the HS2 route between London and the West Midlands – completed its work yesterday. The machine, […]

HS2 completes three-day Northants viaduct slide

HS2 has revealed new timelapse footage showing engineers carefully sliding a 1,300-tonne viaduct deck into position near the Northants village of Thorpe Mandeville. The steel and concrete deck of the Lower Thorpe viaduct – which stretches for 220 metres – was assembled to one side before being slid into position in just three days, reaching […]