These photos show a huge HS2 tunnelling machine being lifted out of the ground – after it completed a five-mile drive ...

The $80 million tunneling machine known as ‘Bertha’ resumed mining Tuesday beneath the Seattle waterfront for the first time in about seven weeks. The machine moved forward about two feet, allowing ...

On Wednesday morning, crews removed the final piece of Bertha the boring machine out of the pit it has sat in since reaching the end of the tunnel running under Seattle. A live time lapse of the ...

Tunnel boring machines for the Suburban Rail Loop East are being assembled on launch sites, paving the way for construction of the new line to begin by “the middle of this year”.

Chinese engineers have pulled off a stunning rescue, saving a tunnel boring machine (TBM) stuck 177 feet underground beneath ...

The five-story-tall tunneling machine that will bore a hole from SODO to Queen Anne for the new SR 99 tunnel now has a name: Bertha. The Washington State Department of Transportation launched a ...

Contractors working for the state of Washington are planning a high-stakes operation to rescue Bertha — the world's largest tunneling machine. Bertha is supposed to be boring a 2-mile highway tunnel ...

A giant boring machine that is digging the tunnels for the High Speed 2 (HS2) rail project has completed its journey - the first on the project to do so. Dorothy, a 2,000 tonne tunnel-boring machine ...

As part of Phase 3B of the Goregaon–Mulund Link Road, the process of lowering the Tunnel Boring Machine (TBM) components into the construction shaft for the twin tunnels near Dadasaheb Phalke ...

A colossal project to reduce traffic in the underground tunnels connecting the Virginia cities of Norfolk and Hampton just had a big breakthrough — literally. Since 1957, the two cities have been ...

The machines launched from Shaft 9B-1, driving 2,250m and 3,120m to breakthroughs at Shafts 9A-5 and 9B-3, respectively.