The new $8.5-million bridge being built over the Osage River near Tuscumbia, Mo., was the country’s first stimulus-financed project to get under way after President Obama signed the American Recovery and Reinvestment Act on Feb. 17. The new bridge will take the place of a rickety steel-truss bridge that has stood since 1933. Tuscumbia, Mo. Photo: MODOT New Tuscumbia bridge spanning the Osage River is on schedule for October 2010 completion. Related Links: Stimulus: A Snapshot of Top Shovel-, Wrench- and Pencil-Ready Projects In the months before the ARRA bill was enacted, the Missouri Dept. of Transportation laid the groundwork
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.