An Italian team of Pizzarotti and Webuild say excavation at the first tunnel for the Messina-to-Catania Railway, at Forza D’Agrò, has been completed. Tunnel boring machine “Alessia,” pictured, excavated 2.5km…

CPB Contractors is celebrating a milestone in its project to build Stage 1 of Sydney’s Western Harbour Tunnel (WHT) with the completion of a triple-lane road tunnel between Rozelle and…

A joint venture of Lane Construction, Schiavone and Dragados has won a $466m contract to build the mile-long New Jersey section of the new Hudson River Tunnel, a twin rail…

Tunnel boring machines (TBMs) named Rexy and Renny have completed their two-year stint digging two 6.3km paths for the extension of the Eglinton Crosstown rail line in Toronto. The 750…

Engineers at Tsinghua University in Beijing and China Railway Science and Industry Group have developed a prototype tunnel boring machine (TBM) that also blasts rock. The unit has passed tunnelling…

Italian contractor Webuild has announced plans to build a factory in Terni, Umbria, to repair its 58 tunnel boring machines (TBM). The machines will be serviced after they finish a…

The world’s biggest tunnel-boring machine has dug the 9km-long Gudauri tunnel in the mountains of the Caucasus state of Georgia. It’s part of the 23km “KK Highway” linking the cities…