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 ...

A machine has begun digging HS2’s 4.5 mile tunnel to Euston, from Old Oak Common, a journey expected to take 18 months.

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 ...

HS2 completed a five-mile tunnel drive under London on Thursday (April 3). The milestone was achieved using one of four giant tunnelling machines being deployed to build the railway’s Northolt Tunnel.

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

Chennai Metro's TBM will reach Thirumayilai on February 9, overcoming delays from soil issues and construction challenges.

Victorian government experts have confirmed that the tunnel boring machines are a “factor” in a sinkhole opening up in the ...