By Richard Pare Moscow's Shukhov radio tower, completed in 1922, has fallen into disrepair and is scheduled for dismantling. By Richard Pare Vladimir Grigorievich Shukhov's hyperbolic tower is one of the superlative engineering feats of the twentieth century, according to the engineers and architects that want to preserve it. Related Links: Shukhov Tower Federation Motherboard: Architects to Putin, "Save Moscow's Eiffel! Internationally renowned structural engineers and architects are calling on Russian President Vladimir Putin to save from demolition Moscow’s iconic Shukhov radio tower. Designed by Vladimir Grigorievich Shukhov, who is credited with developing the hyperbolic-tower concept, the 92-year-old steelwork structure
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.