Building on advances at similar tunnels in China, the Dalian Bay Undersea Tunnel team had to solve numerous technical challenges and adapt to cold site conditions to complete the first cross-sea immersed tube tunnel in the northern reaches of the country.
The Kiewit Shea Traylor (KST) joint venture wins the progressive-design build contract that will link the VTA and BART rail systems via a tunnel under downtown San Jose.
Enbridge Energy will issue requests for proposals in the coming weeks for contractors to construct a $500-million Great Lakes tunnel to carry crude oil and natural gas liquids through the Straits of Mackinac between Michigan and Ontario.
Navigating treacherous terrain and a dense population, a team built a 118-km road that will ease congestion and create economic opportunity for Pakistan.
Big boulders are causing big headaches for Virginia’s Chesapeake Bay Bridge-Tunnel expansion project, adding to other issues that have pushed the $756 million effort two years behind its original 2022 completion target.