The House passed on Sept. 23 and the Senate approved on the following day a stopgap funding measure that would continue for three more months airport construction grants and other Federal Aviation Administration programs. The extension— the 16th short-term FAA authorization since Sept. 30, 2007, when the last multiyear aviation bill was enacted—is expected to be signed by President Obama. thanks to an extension President Obama was expected to sign. The new stopgap would run through Dec. 31.
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.