The Army Corps of Engineers is facing bipartisan heat from House lawmakers about how it is carrying out important policy changes called for in the 2007 Water Resources Development Act. Because the Corps and the Army have been slow in meeting WRDA requirements, critical infrastructure projects could be delayed, says Marco Giamberardino, senior director of the Associated General Contractors’ federal and heavy construction division. Assistant Secretary of the Army, Civil Works, Jo-Ellen Darcy says the Army and Corps are making progress on revising key policy document. The House Committee on Transportation and Infrastructure on March 4 held a hearing and
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.