As fiscal 2010 spending bills advance on Capitol Hill, water infrastructure programs look like big winners. The House’s 2010 bill for the U.S. Interior Dept. and U.S. Environmental Protection Agency passed on June 26 includes $5.2 billion for EPA water grants, a 76% jump from 2009’s mark. It also includes $2.3 billion for state clean-water spending, more than triple this year’s level, and $1.4 billion for state drinking-water funding, up 74%. The version the Senate Appropriations Committee cleared on June 25 is less generous but still well above 2009 totals. The measure recommends $4.95 billion for EPA water grants, including
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.