The confluence of two wars, the growth and reorganization of the U.S. Army and the enormous construction program required to accommodate those demands are the forces driving the federal government’s construction workhorse, the U.S. Army Corps of Engineers, through its own transformation to become a more efficient program-management machine. Slide Show Photo: Marc Barnes, USACE-Belvoir Integration Office Steelworkers on the $1.77-billion National Geospatial-Intelligence Agency New Campus East project secure a 90-ton truss, 130 ft above the atrium floor. Related Links: An Electronic Chat with Army Corps of Engineers Chief Lt. Gen. Robert L. Van Antwerp Major Boom in Army Construction
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.