Related Links: Groundwater Treatment Plant Sets Milestones at Hanford Nuclear Site Discovery of Cracks at Seabrook Nuclear Powerplant Generates Series of Tests The U.S. Dept. of Energy says that the transfer of 2,400 metric tons per year, or MTU, of natural uranium to the joint venture of Fluor Corp. and Babcock & Wilcox as payment for cleanup of a Cold War-era nuclear fuel plant in the Midwest would not adversely affect the domestic uranium industry. DOE's "bartering" approach has come under scrutiny by congressional appropriators; the U.S. Government Accountability Office has called for eliminating the companies as "sales agents" in
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.