As organized labor heads into a potentially dismal negotiation season this year, unions received a big boost in February when President Barack Obama made good on his campaign promise to reverse the ban on project labor agreements for federally funded projects. As billions of dollars in federal work begins to filter out through the stimulus package, federal contracting agencies could opt to use project labor agreements on its major construction projects. Photo: AP/Wideworld Related Links: Inflation Reverses Course As Recession Floors Prices Renegotiations Make Bad Times Worse Finding Cost Data on the Internet What Drives ENR’s Cost Indexes How To
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.