Twenty years ago, Chris Traylor found himself rewiring the controls of a 225-ton, American 9310 crawler crane in his family’s equipment shop in Evansville, Ind. “It was important to my dad that all of us worked in the shop during the summers of our high-school years,” he says. Little did he know, he would be rewiring again one day, but on a much bigger scale: Now 37, the co-president of Traylor Bros. Inc. is helping to direct an ambitious fleet overhaul as the family-owned firm ramps up for a heavy workload of major U.S. infrastructure projects. Slide Show Photo: Traylor
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.