UK Power Networks has partnered with tunnelling specialists Barhale to dig a micro-tunnel under the Grand Union Canal in West London, delivering power for the London end of the HS2 rail link. The tunnel will carry power cables for HS2’s Tunnel Boring Machines (TBMs), engaged on building the high-speed rail line to Euston.

The province is preparing to agree a fourth contract in its plans to build the Eglinton Crosstown West Extension. The latest contract will build seven stations.

The tunnelling machine had a special feature allowing it to be converted into a submarine in case the river water entered the tunnel

Work on a new 1.9-kilometer sewer to expand wastewater infrastructure in St. Paul’s Bay is advancing rapidly, the government said in a statement Saturday. The deepest shaft of the project has been completed, and preparations for the tunnelling operation are currently underway.

Work on Sydney Metro West’s Hunter Street Station is powering ahead as excavation works continue on this future CBD transport hub.

Two TBMs have relaunched from the Five Dock metro station site, as Sydney Metro West gears up for its biggest year of tunnelling.

After 16 months of digging, Hazel the tunnel-boring machine can rest. Alexandria’s massive RiverRenew Tunnel Program reached a critical milestone on Wednesday with the completion of a 2.2-mile underground tunnel that will divert millions of gallons of raw sewage from flowing into the Potomac River every year.

 On March 21, tunnel boring machine Cecilia broke through the north portal of the Chiltern Tunnel on High Speed 2.

An undersea tunnel of a high-speed railway was completed in South China on Friday, setting a new record in the construction of high-speed railway tunnels in China.

With BART’s Silicon Valley extension expected to cost upwards of $12 billion, the Santa Clara Valley Transportation Authority is conducting a new cost analysis of a different approach …