House Transportation and Infrastructure Committee Chairman James Oberstar (D-Minn.) has recommended a $3-billion infusion for the struggling Highway Trust Fund, a sum that Oberstar says will be enough to carry the trust fund through Sept. 30. Oberstar, who made his proposal July 23 during a House Ways and Means subcommittee hearing, said that the boost for the trust fund should come through a transfer from the general fund. The trust fund's highway account is projected to start running a shortfall in August. Oberstar's proposal for fixing that immediate problem is at odds with the plan now shaping up in the
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.