Hundreds of bridges across Cumbria County in England were under review following the Nov. 20 flooding resulting from the highest rainfall in a 24-hour period on record in the U.K. The flooding caused the collapse of six bridges and the death of one police officer. One of the larger bridges to fail was the 50-meter-long, two-span, brick-built road bridge over the Derwent River in Workington. Official says the bridge was inspected and declared sound in July 2008. The town’s second bridge, the Calva, was closed because of serious damage. Photo: AP/Wideworld/Peter Byrne
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.