Related Links: New York City Releases New BIM Guidlines The New York City Dept. of Design and Construction (DDC) is the latest regional agency to issue building-information-modeling technology standards. The agency says the new guidelines establish a framework to enable all future DDC-managed public building design projects to be delivered using 3D design technologies and BIM processes. The guidelines require BIM on new projects valued between $15 million and $50 million, says Craig Chin, a DDC spokesman. BIM provides “a broad platform for collaboration across the project team,” says David Resnick, DDC deputy commissioner for public buildings. The agency joins
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.