Related Links: DOE Fiscal 2015 Budget Request Highlights Areva Information on MOX Project The Dept. of Energy's proposal to put a 60%-complete mixed-oxide fuel (MOX) facility in Aiken, S.C., on "cold standby" has run into criticism from key senators.The plant, which would convert 34 metric tons of surplus weapons-grade plutonium into MOX fuel, could cost more than $7 billion to build, plus $30 billion in life-cycle expenses, DOE Secretary Ernest Moniz told a Senate appropriations subcommittee on April 9. Citing "extremely tight budgets," DOE put the project on hold while it evaluates alternatives, he noted.Lawmakers blasted DOE for potentially breaking
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.