In its latest hotly contested competition for federal aid, the Dept. of Transportation has awarded $293 million for 53 streetcar and bus projects around the country. Some of the funds will go for construction. Related Links: Complete list of winners The grants were in two categories: Six projects, including five streetcar lines, shared $130 million in Urban Circulator funds; and 47 projects divided $163 million in Bus and Bus Livability aid. DOT Secretary Ray LaHood, announcing the winners on July 8, said the grants are part of the Obama administration's community "livability" initiative, which links transportation planning and funding with
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.