Eric Walker added The Insane Scale of Europe’s New Mega-Tunnel - YouTube to Civil engineering and Denmark

Eric Walker added The Fall of Galloping Gertie • Damn Interesting to Civil engineering

Eric Walker added r/EngineeringPorn - Neat piping to Civil engineering

Eric Walker added r/Documentaries - $10 Billion Mega Construction (2016) - Building of the worlds longest and deepest rail tunnel, and its opening in Switzerland after nearly 2 decades under construction. to Civil engineering

Eric Walker added Bridges and Infrastructure in the United States to Infrastructure, and added Infrastructure to Civil engineering

Eric Walker added a number of links to Metropolitan Area Outer Underground Discharge Channel, and added Metropolitan Area Outer Underground Discharge Channel to Civil engineering and Kasukabe

Eric Walker added Civil engineering, Aerospace engineering and Nuclear physics and engineering and a number of links to Engineering, and added Engineering to Science, engineering, mathematics and the humanities

Eric Walker added Metropolitan Area Outer Underground Discharge Channel and Infrastructure and a number of links to Civil engineering, and added Civil engineering to Engineering