Peter M. Rogoff, a veteran Senate transportation aide, is President Obama's choice to lead the Federal Transit Administration, the White House announced on April 8. Rogoff has been a staffer on the Senate Appropriations Committee for 22 years, including 14 years as the top Democratic aide on the panel's transportation subcommittee, where he worked under Sens. Frank Lautenberg (D-N.J.) and Patty Murray (D-Wash.). His nomination as FTA administrator is subject to Senate confirmation. Besides working on annual spending bills for the Dept. of Transportation, Rogoff also has played a role in the last three multi-year surface transportation reauthorization measures, beginning
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.