UK’s High Speed Two (HS2) has begun excavation of the last tunnel bore on its 140-mile high-speed rail link between central London and the West Midlands. On 16 March 2026, the 11th and final tunnel ...

HS2 celebrates launch of TBM for second tunnel bore under Long Itchington Wood in Warks. Credit: High Speed Two Ltd. UK-based High Speed Two (HS2) has launched the 125m tunnel boring machine (TBM), ...

The 2.1-mile Colne Valley viaduct is about a third complete. Photo courtesy of HS2 Ltd. December 28, 2023 With its workforce now peaking at around 30,000, the U.K.'s London-Birmingham 140-mile HS2 ...

Tunneling on the U.K.’s 230-km London-Birmingham high-speed railroad launched May 13, as a 10.26-meter-dia tunnel boring machine (TBM) began work at the Chiltern Hills southern approach, about 30 ...

Caroline TBM can travel at an average of 14m per day. Credit: High Speed Two. High Speed Two (HS2) has rolled out the fifth tunnel boring machine (TBM), known as Caroline, for the construction of ...