In a move welcomed by construction groups and other business organizations, Congress has cleared a bill to repeal a tax-reporting provision of last year's health-care law. Final congressional approval came on April 5, when the Senate passed the measure on a 87-12 vote. The House had approved the bill on March 3. The measure now goes to the White House for President Obama's expected signature. After the Senate vote, White House Press Secretary Jay Carney issued a statement saying that "we are pleased Congress has acted to correct a flaw that placed an unnecessary bookkeeping burden on small businesses." The
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.