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On Sept. 28, Bangalore’s last tunnel boring machine (TBM) for the city’s metro rail project broke through, marking the end of TBM tunneling on the Namma Metro Phase 1.The Robbins-operated machine bored a 2,460-ft drive through challenging conditions between Chickpet and Majestic stations.
The Association of Equipment Manufacturers (AEM) released a poll that found that half of registered voters say the nation’s infrastructure has gotten worse over the last five years, and a majority of voters said roads and bridges are in “extreme” need of repair.
To learn more about tunneling the important role that civil engineers play in tunneling, check out the infographic below created by the New Jersey Institute of Technology’s Masters in Civil Engineering Online degree program.