The number of fatal construction-related accidents in New York City decreased in 2009 by 84% over the previous year. Three fatalities were reported in 2009 compared to 19 in 2008, 12 in 2007 and 18 in 2006, according to the New York City Dept. of Buildings. Though DOB reports show that permits issued for major construction decreased 33% in 2009, building department officials believe fatal construction-related accidents decreased by a far greater margin due to the department’s expanded enforcement powers, increased oversight of high-risk construction operations and new safety awareness programs. “While the tough economic times have slowed down construction,
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.