The American Recovery and Reinvestment Act has produced or saved an estimated 262,000 construction-sector jobs through the end of 2009, the White House Council of Economic Advisers says in its latest update on the impact of the stimulus legislation. That total represents a near doubling from the 133,000 construction jobs CEA estimated in its previous ARRA study, issued Sept. 10. In its new report, released Jan. 13, CEA says that over all, ARRA hasincreased employment by 1.5 million to 2 million as of the fourth quarter of 2009, compared with what the jobs level would have been if the legislation
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.