Applications soon should start streaming in to the U.S. Dept. of Transportation for $1.5 billion of American Recovery and Reinvestment Act discretionary grants for a wide range of infrastructure projects. DOT on May 18 published detailed criteria it will use to select winners of what it dubs Transportation Investment Generating Economic Recovery (TIGER) grants. “I would expect a high level of interest” in the new grants, says Jack Basso, American Association of State Highway and Transportation Officials’ director for program, finance and management. Cathy Connor, Parsons Brinckerhoff senior vice president for government affairs, adds, “I think the demand will be
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.