The House has taken another stab at steering federal funds to school construction. The chamber on Sept. 17 approved a measure that would authorize more than $6.5 billion for public-school and community-college projects. The provision is part of a bill that would expand the federal college-loan program and curtail private lending in that sector. The focus now moves to the Senate, where the fate of the construction proposal is uncertain. The measure would authorize $2.02 billion annually for fiscal 2010 and 2011 to modernize, renovate or repair K-12 public schools. Another $2.5 billion would be available for new construction or
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.