Related Links: After Elections, Construction Looks for Action on Key Issues Keystone Pipeline a Litmus Test for Obama The fierce and expensive federal election campaigns produced no major power shifts: President Obama was re-elected; Democrats added two seats to their Senate majority; and Republicans held the House, though they lost seven seats.Leaving aside blue-state, red-state maps, construction officials are focusing on pressing legislative and regulatory issues. Avoiding the "fiscal cliff" is the immediate matter. Obama and Capitol Hill leaders began talks on Nov. 16 to decide the fate of billions of dollars in tax breaks that expire on Dec. 31
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.