The British may not be as courteous as they are sometimes credited, but their contractors seem to be an increasingly considerate bunch. A scheme to turn jobsites into good neighbors is fast covering the country and is attracting interest from builders across the Atlantic. The Considerate Constructors Scheme "has been extremely successful and it pays for itself," says Richard Anderson, president of the New York Building Congress, who likes the program. CCS is voluntary and covers over 34,000 U.K. sites pledged to follow behavioral guidelines. Until this recession, "We grew at 30% a year for ten years", says Chief Executive
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.