tunnel Archives - Equipment & Contracting

Bertha – A Massive TBM’s 2 Mile Journey Underneath Seattle

July 22, 2019 Alex Smoot 0

View the complete article, including interview, here. Big construction requires big ideas, big money — and mammoth equipment. The Washington State Department of Transportation (WSDOT) proposed a project back in 2009 to replace the Alaskan […]

10 Biggest and Most Hazardous Mines in the World

April 2, 2019 Alex Smoot 0

View the complete article here. One of the most common types of mining, open-pit mining, is also known as surface mining because rock or minerals are extracted from the earth from an open pit near […]