German-based TBM manufacturer is progressing on a challenging dig under the Elbe River estuary, and expects further tunnel work in the future as Germany prepares significant investments in infrastructure.
One team in England recently achieved one of the world's most sustained single tunnel-boring machine drives on a mine project, says its contractor, while another secured a design-build contract for the country's longest road tunnel,
Geography and time weren’t on the side of Mortenson when it needed to design and build a new siphon to move 22 million gallons of wastewater as part of an upgrade to a 42-year-old water system in Oregon.
The $2.1-billion Purple Line Extension Transit Project Section 1 in Los Angeles reached a major milestone recently, as two tunnel boring machines (TBMs) began carving out twin tunnels for the project.