California Engineering Contractors, Pleasanton, Calif., was not happy with its high-speed Internet options. Even while paying thousands of dollars a month for bonded T1 lines or similar high-end connectivity at its main office, field offices at projects were often stuck with limited broadband. “In construction, sometimes you just don’t have the facilities for a T1,” deadpans Sam Hanna, CEC Internet technology director. Photo: Mushroom Networks The Truffle can bond up to six internet connections. But most of the company’s data traffic moves between project sites and the main office, and slow connections and digital bottlenecks can cost money. So CEC
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.