Photo by Julio Delgadillo, Skanska USA Will Senner, left, an assistant project manager with Skanska USA, and Glen Smith, right, a superintendent, demonstrate how they can use Vela's tools for taking BIM to the field on iPads. Here they match a model view with a project location to "see" in-wall utilities of ductwork, mechanical piping and fire protection piping at the James B. Hunt library construction project at North Carolina State University's campus in Raleigh. A set of new products that graduated from public beta status in late May will let users of Vela Systems' field data management services add
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.