The Dept. of State Us Bureau of Overseas Building Operations has awarded a $138-million contract to B.L. Harbert, International, based in Birmingham, Alabama, to build a new embassy compound in Dakar. The project consists of a 171,00-sq-ft. chancery building, three access control facilities, marine security guard quarters, a parking garage, a recreation facility, a vehicle maintenance building, shop and a mail screening facility on a 9.9-acre site. The compound will serve 455 employees. The facility was designed by architectural firm Page Southerland Page, LLP, Arlington, Virginia. Its features include solar collectors for electricity generation and hot water, water-conserving plumbing fixtures;
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.