Photo By Tudor Van Hampton for ENR The oil-and-gas sector has helped prop up demand for large equipment, such as truck cranes. Next year, sales are expected to rise slightly as rental companies and dealers continue to 'fleet up.' Related Links: Telematics Help Trim Contractor Fleet Costs Why Contractors are Renting Rather Than Buying Although analysts are expecting U.S. construction to rise next year, many believe contractors will continue to turn to rental and leasing companies rather than buy large quantities of new equipment for their projects."Most people think that the rental companies will continue adding to fleet this coming
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.