Highways, transit and passenger rail are the big winners among construction programs in President Obama’s $3.7-trillion fiscal 2012 budget request, which calls for sharp increases in those sectors next year, kicking off a proposed $556-billion, six-year surface transportation bill. But many other major construction accounts would suffer cuts under Obama’s plan to help meet his goal of freezing overall non-security-related discretionary funding. Among programs that would be trimmed are Environmental Protection Agency water infrastructure, Army Corps of Engineers civil-works construction and General Services Administration new buildings construction. The Associated General Contractors calculates that the Obama budget seeks a total of
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.