Sports facilities range from Olympic and World Cup venues, professional team stadiums, to high school and college facilities. Professional sports team owners often push the envelope in their quest to build excitement for and attendance at their events. Some major residential and resort developers also build record-breaking recreational facilities as drawing cards.The sports construction market sector has suffered along with the overall market downturn in recent years. According to McGraw- Hill Construction Research & Analytics, the value of construction starts of sports facilities in the U.S. has declined from $4.8 billion in 2006 to $2 billion in 2011.Some firms have
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.