DONES Ray Dones, Champion of Minority Contractors, Dies Raymon P. Dones, a contractor and industry activist who paved the way for minority contractors in construction, died on March 25 in Oakland, Calif. He was 93 and died of natural causes, says his son, Alan Dones, managing principal of Strategic Urban Development Alliance, a locally based developer. A former Pullman porter who gained a contractor's license, the elder Dones founded in 1953 the Aladdin Electric Co., which became the largest black-owned electrical contractor, says the alliance. He then founded Trans-Bay Engineers and was its CEO until he retired in 1984. 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.