Fixing a looming problem in the Highway Trust Fund--at least for now--President Obama has signed legislation providing a $7-billion infusion for the trust fund's highway account. The additional money, which will be transferred from the general fund, is expected to keep the account solvent through Sept. 30 or perhaps a bit longer. Related Links: After 'Fix,' Trust Fund Still Not Out of the Woods Obama signed the measure on Aug. 7, the day the Senate began a four-week recess. The House's break began on July 31. When lawmakers return after Labor Day, debate is expected to heat up over how
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.