Courtesy of U.S. Senate Photo Studio House and Senate conferees gather for their initial meeting, but industry officials say to watch for the outcome of behind-the-scenes negotiations on the revenue portion of the bill. Related Links: House, Senate Nearly Set for Talks on Highway-Transit Bill Congressional Budget Office cost estimate of Senate-passed version of transportation bill House and Senate lawmakers have come to the negotiating table to begin talks aimed at producing a new surface-transportation law. Construction and state transportation officials, who have put up with nine short-term highway-transit measures since 2009, would love a quick deal. But negotiations are
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.