The world’s largest-diameter shield tunneling machine passes the 10,000-meter mark, setting a major milestone in underground ...

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The new rail tunnel, called the Gateway program, will serve Amtrak and New Jersey Transit and provide a vital link between the Garden State and Manhattan.

Cross passages between both bores of London's 0.7-mile Silvertown tunnel are nearing completion in frozen ground, marking the end of excavations on the River Thames crossing. The $1.5-billion ...

The projects aim to prepare a stable path for tunnel boring machines that will excavate the new two-track tunnel under the Hudson River. Challenges include navigating varying geological conditions, ...