In July, the Colorado Dept. of Transportation started one of its largest stimulus-funded transportation projects with the multimodal rehabilitation of nine miles of the C-470 highway between Interstate 25 and Santa Fe Drive, south of Denver, and an adjacent bike path. Denver, Colo. Photo: CDOT ARRA funds are used to repave nine miles of Denver-area highway and 26 miles of bike paths with concrete and asphalt. Photo: CDOT Related Links: Stimulus: A Snapshot of Top Shovel-, Wrench- and Pencil-Ready Projects The $22.3-million project, entirely funded with American Recovery and Reinvestment Act dollars, will repair or replace highway concrete base slabs
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.