The Texas Dept. of Transportation announced on Jan. 6 that it pulled the plug on the estimated $200-billion Trans-Texas Corridor, a vision introduced by TxDOT and Texas Gov. Rick Perry (R) in 2002. TxDOT Executive Director Amadeo Saenz Jr. made the announcement during the fourth annual Texas Transportation Forum in Austin. Projects already started under the heading of the Trans-Texas-Corridor will continue as a series of individual projects. Portions of two TTC projects are under development: Interstate 69 from Texarkana/Shreveport to the Mexico border and the I-35 corridor from north of Dallas/Fort Worth to Mexico. Perry cited financing as a
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.