Akkerman Inc.

The Seattle Tunnel Partners JV is attempting to remove the rest of an 8 inch diameter steel well casing that has been blocking the Bertha tunnel boring machine since December 8, 2013. The upper 55 […]

Progressive Engineer is an online magazine and information source covering all disciplines of engineering in the continental U.S. The magazine features profiles of engineers and companies and stories on projects that detail the accomplishments of […]

A full service engineering firm with much experience in tunneling. Visit Hatch Mott MacDonald