A highly anticipated report on the San Jose BART extension revealed that switching the tunnel design could add $600 million to the already $12.75 billion project – an estimate questioned by ...

Tunnel construction stands as a pivotal component in the development of modern infrastructure. With urbanization at its peak and space at a premium, the significance of efficient, safe, and ...

The original rail trail design, which called for a tunnel, next to a more convoluted route that the government proposed but recently scrapped. State and federal transportation officials will construct ...

SAN JOSE, Calif. (KGO) -- In an effort to make the best financial decisions for the Silicon Valley BART Expansion project, the VTA board discussed potentially switching from a single tunnel to twin ...

With BART’s Silicon Valley extension expected to cost upwards of $12 billion, the Santa Clara Valley Transportation Authority is conducting a new cost analysis of a different approach — the ...

BART officials warned the head of the Valley Transportation Authority in 2017 that the single-bore tunnel design now envisioned for the San Jose extension posed "serious risks to safety," documents ...

It's not on the scale of Boston's Big Dig, but the Bremerton Tunnel Project nevertheless is poised to make a significant impact on traffic in this waterfront city across Puget Sound from Seattle.

TBM will support one of the city's largest-ever public works projects, set to start in August the bore of a 2.25 mile, ...

Apr. 28—TRAVERSE CITY — The proposed Line 5 tunnel beneath the Straits of Mackinac could explode if the current design is used, a tunnel engineer says. Long a subject of public debate, the proposed ...

Valley Transportation Authority’s board made it official Friday by voting to press forward with the plan to dig a single large tunnel as it extends Bay Area Rapid Transit to downtown San Jose. The ...

PITTSBURGH — The Liberty Tunnels Ventilation System in Pittsburgh has been recognized as a National Historic Civil Engineering Landmark by the American Society of Civil Engineers. Pennsylvania ...