When Florida pioneer and rail baron Henry Flagler pushed his Florida East Coast Railway south to Key West in the early 1900s, his engineers and laborers gave little thought to the environmental impact of their dredging and filling. That wasn’t the approach taken by the engineers and contractors now punch-listing a seven-mile-long reconstruction of a stretch of what became the Overseas Highway. They went out of their way to protect many species of aquatic life, taking care, among other things, not to rock the world of the crocodiles that inhabit the waters. Slide Show Photo: Granite Construction The new roadway
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.