Beating its congressionally imposed deadline, the U.S. Dept. of Transportation has released the $27.5 billion provided for highway projects in the recently enacted economic-stimulus package. The release of the funds, announced March 3 by President Obama, followed the Federal Highway Administration's formal apportionment the day before of $26.7 billion of that total among the states. Photo: Courtesy of the White House President Obama, flanked by Vice President Biden (l) and Transportation Secretary Ray LaHood, at U.S. DOT headquarters Mar. 3. Related Links: Obama Hails Beginning of New Construction In making the announcement at DOT's headquarters, Obama said, "I can say
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.