Clack-A-Mole, a tunnel boring machine, has completed its ½-mile excavation for a new pipeline in Clackamas County.

After a more than 6,300 foot journey, the tunnel boring machine nicknamed “Chessie” has fully completed its task of ...

A government investigation has confirmed that tunnel construction for the shinkansen bullet train line extension to Sapporo ...

The Department of Public Works and Highways expects to finish the excavation works of what would become the longest tunnel in ...

OKC Mayor Patience Latting described the city's underground Metro Concourse network as "the largest pedestrian tunnel system ...

Tunnel face stability is a critical aspect of underground excavation, particularly in shield tunneling, where the integrity of the tunnel face can significantly impact the safety and success of ...

It's gone way beyond that," he added. An investigation into its construction is underway, officials said. The tunnel's construction "must have taken a long time... it could have been one or two ...

A secret tunnel discovered last week on the U.S.-Mexico border will be sealed by Mexican authorities, an army official in ...