Courtesy of Skanska/Facchina D.C. bridge reconstruction project is the largest in the local DOTs history. While Interstate 695 and I-295 are on either side of the Anacostia River, the two have never met. As a result, more than 100,000 daily vehicles must squeeze over the river across the pair of 11th Street bridges into the streets of District of Columbia neighborhoods.But a reconstruction project, including three new bridges and a complex new network of connecting ramps, is now under way to change that. With limited funds, the District Dept. of Transportation took a "design-build to budget" approach.Prequalified teams met with
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.