The U.S. Dept. of Transportation is making headway in moving "TIGER" grants awarded early last year closer to actual construction. U.S. DOT announced on Dec. 29 that it had signed agreements with the Alabama and Tennessee DOTs on a $105-million Transportation Investment Generating Economic Recovery grant for two intermodal freight facilities along the Norfolk Southern Corp.'s "Crescent Corridor". DOT release. Of the $105-million grant, half will go to Alabama to help finance a $97.5-million, 261-acre regional facility near McCalla, about 20 miles southwest of Birmingham. Norfolk Southern (NS) and other sources will fund the remainder of the project's total cost.
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.