This story was updated Sept. 15. The earlier version had an incorrect figure for the total allocated to infrastructure spending. President Obama's $447-billion job-creation package would offer a significant lift to the struggling construction industry, including $105 billion in infrastructure spending plus new or extended tax incentives aimed at small businesses. The tax breaks could find receptive ears in Congress, but the funding for transportation, school upgrades and housing faces a steep, uphill trek.In outlining his proposed “American Jobs Act” on Sept. 8, Obama urged lawmakers to pass it “right away.” Immediate action isn't likely, however. House Republicans, who have
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.