While sustainability advocates push the benefits of green construction, more designers, contractors, owners and insurers are now confronting the risks behind those claims. Potential risks associated with emerging green demands have represented a gray area but as more claims and lawsuits land in court, details are becoming clearer. Although risks are often project- and location-specific, owners, constructors and designers of green buildings are finding some consensus, says New York City-based insurance broker Marsh in a new report. The study, “Green Building: Assessing the Risks,” identifies and ranks 10 key areas of green-building risk, five of which could be the most
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.