Early congressional reviews of American Recovery and Reinvestment Act activity in core transportation sectors give agencies generally good marks, but lawmakers plan to keep a keen eye on stimulus spending as the flow increases. At recent House and Senate hearings, Transportation Secretary Ray LaHood said highway and transit sectors are showing the most progress. He also shed light on two big programs for which DOT hasn’t committed any money yet: $8 billion for high-speed rail and $1.5 billion for unspecified major projects. LaHood praised California’s rail plans and wants to fund work in several other corridors. He also said he’d
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.