HS2's tunnel boring machines, Florence and Cecilia have passed the halfway point on their 10-mile journey excavating the Chiltern tunnels.
Metrolinx has announced that tunnelling is now underway on Scarborough’s 7.8-km subway extension in Toronto, Canada.
HS2’s tunnel boring machine (TBM) Dorothy has begun its second one-mile tunnel bore under Long Itchington Wood in Warwickshire.
A second 140 metre long, 2,050 tonnes tunnel boring machine (TBM) has begun its journey across London for HS2.
Sydney Metro West's first tunnel boring machines have arrived at The Bays Station to carve out 11-kilometre tunnels to Sydney Olympic Park.
Tunnel excavation will now begin on Vancouver’s Broadway Subway project. This will extend the city’s Millennium Line by 5.7 kilometres.
HS2 has launched the first of six tunnel boring machines (TBMs) that will dig more than 26 miles of tunnels under London.