Related Links: Company obituary of co-founder Bill Larson and links to related stories LARSONWilliam L. "Bill" Larson, who co-founded an architecture practice that grew in 45 years to become the 500-person design-engineering firm DLR Group, Overland Park, Kan., died on June 29 in Pinetop, Ariz. He was 88. The cause of death was complications from a series of falls, says a company spokesman.Larson was a vice president at architect Leo A Daly before founding his own firm in 1966, along with architect Irving R. Dana and engineer James P. Roubal. Dana Larson Roubal and Associates became DLR Group in
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.