KORF Victor W. “Bill” Korf Jr., former national director of transportation at Omaha-based engineering firm HDR Inc. and former deputy secretary of transportation and chief engineer for the Washington Dept. of Transportation, died on June 9 at age 77 of complications due to cancer. Korf joined the agency in 1956 and was involved in construction of the Seattle Evergreen Point floating bridge. He retired in 1985. At HDR, Korf managed offices in Washington, Arizona and California, and worked with the newly independent Polish government in the 1980s on its first privately funded highway project. Arthur C. Erickson, the Vancouver, British
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.