Two U.S. Corps of Engineers officials and two other men were arrested on Oct. 4 and charged with conspiracy, bribery, kickbacks and money laundering on two Corps contracts, the Justice Dept. says. U.S. Attorney for the District of Columbia Ronald C. Machen Jr. said, “This indictment alleges one of the most brazen corruption schemes in the history of federal contracting.”The case involves an indefinite-delivery/indefinite-quantity contract with a $1-billion-plus maximum value and a planned contract with a $780-million cap.Neither was competitively bid.The indictment, returned by a grand jury on Sept. 16 in U.S. District Court in Washington, D.C., and unsealed on
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.