Social networking is coming to construction. So far, it is not a Twitter-like feed of 140 characters or less, nor is it free of charge. But it could be a highly useful tool to help firms engage each other more openly, cut risk and ease tension in a time of economic distress. One such innovator, Textura Corp., appropriately derives its name from the Latin words for “build” and “intertwine.” In just three years it has built a base of 38,000 users—and 25% of ENR Top 400 general contractors—into an innovative bill-pay site. Textura has turned the tedious business of bank
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.