ENR Clarifies Key Issues Unresolved in BIM, IPD I wanted to express my gratitude for the series on building information modeling and integrated project delivery that Nadine Post delivered through the pages of ENR, most recently in “Integrated-Project-Delivery Boosters Ignore Many Flashing Red Lights”. Post brings a level of discernment that was lacking in other attempts to cover these complex, interrelated subjects. The primary difference between this approach and the others is a willingness to address specific areas in which these tools and forms of agreement require further development. The credibility of ENR and the objectivity of the articles encourage
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.