This article is republished from The Conversation, an independent and nonprofit source of news, analysis and commentary from academic experts. Stephen P. Leatherman is Professor of Coastal Science at ...

Sound Transit contractors are tunneling under downtown Bellevue, but you won’t find a big tunnel-boring machine like Seattle’s Bertha. The light rail tunnel will connect the East Main light rail ...

Mary, the enormous drill doing the bulk of the heavy lifting in the Hampton Roads Bridge-Tunnel Expansion Project, began boring the second tunnel Thursday after a six-month break. She finished digging ...