President Obama has chosen Victor M. Mendez, former director of the Arizona Dept. of Transportation, as his nominee to head the Federal Highway Administration, the White House announced on April 2. His nomination now will be considered by the Senate. Mendez joined Arizona DOT (ADOT) in 1985 as a transportation engineer and rose through the ranks to become the agency's director in 2001. At ADOT, Mendez succeeded Mary E. Peters in the top job. Peters also left to be FHWA administrator and later became secretary of the U.S. Dept. of Transportation. Photo: Arizona DOT Victor M. Mendez Mendez was active
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.