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 ...

Mary’s job is done. On Wednesday, the tunnel-boring machine known as Mary, responsible for digging the two new tunnels for the Hampton Roads Bridge-Tunnel expansion, completed the second and final leg ...

A tunnel-boring machine stalled beneath China’s Yangtze River while excavating a highway tunnel, forcing engineers to complete an unprecedented mid-river docking operation over two years.

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 ...

VIRGINIA BEACH — A major expansion project at the Chesapeake Bay Bridge-Tunnel has been delayed for several months after workers came across an old ship anchor buried beneath the shipping channel. In ...

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 ...

Rosie, the tunnel boring machine named after Akron's own Rosie the Riveter, has a sister coming to town later this year, and her name is Elaine. Named after environmental advocate Elaine Marsh, Elaine ...

While Mercury News readers dubbed the Santa Clara Valley Transportation Authority’s $76 million tunnel boring machine “Shai-Hulud,” after the sand worm creatures from “Dune,” the transit agency has ...

HOT SPRINGS -- Miss Elaine is in Lake Ouachita almost a year after the micro tunnel boring machine was launched into the southern slope of Blakely Mountain. Hot Springs Utilities Director Monty ...