One lesson learned from the Walsh Group’s construction- management assignment on a 650,000-sq-ft hospital in Elgin, Ill.—a project Walsh took over as mass excavation and steel procurement were under way—is that a lack of team experience with building information modeling should not be an inhibiting factor on a complex construction project. image: Walsh Construction Photo: Walsh Construction In some areas ducts hung below plumbing because pipe lead times were less. Related Links: Digging into 3D Modeling Unearths Many Worms Leading-Edge Collaboration Hurt By Lots of Software Workarounds 3D Modeling Spurs Architect To Reorganize Divisions of Labor Leading Off With a
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.