Drone Captures World’s Largest Tunneling Machine Breaking Through After 4 Years Underground April 18, 2017 When Bertha rotated its massive teeth for the first time in 2013 it was the largest tunneling machine in the world. Now 4 years later,...
Watch 116 Excavators Demolish an Aging Overpass in a Single Night September 6, 2016 A 24-year-old overpass bridge in Nanchang, China, gets dismantled in one night by 116 excavators to make way for the city’s new...
