A joint venture of Archer Western Contractors Ltd., Atlanta, and Watsonville, Calif.-based Granite Construction Co. was awarded a $179-million contract by the North Carolina Turnpike Authority for a major portion of the Western Wake Freeway in North Carolina. The contract covers 40% of the 12.6-mile-long project. The Archer-Granite segment includes construction of 34 bridges, noise and retaining walls and drainage systems. Financing for the project will be provided by a combination of toll revenue bonds, state appropriation bonds and a federal Transportation Infrastructure Finance and Innovation Act loan.
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.