“Rather than battling to keep the sea out – they want to use it to help raise the sinking island-city. The scheme would involve pumping huge quantities of sea water into the ground beneath Venice down 12 pipes each of which would be 700m (765 yards) long. The sea water would make the sand beneath the city expand lifting Venice by 30cm (11.8 inches) in 10 years.”
This, of course, comes after the so-called “Moses Project,” which, as the BBC describes it, is “a series of 78 mobile steel barriers to be activated during exceptionally high tides. The barriers, due to be in place by 2011, will lie on the seabed most of the time, but will be filled with air to create a dam when Venice is threatened.”
Of course, soon they’ll just put the whole city atop a mechanized webwork of spindly little hydraulic legs that will stand up and walk inland – taking the Bridge of Sighs with it. The fully automated Robo-Venice of the future.
Meanwhile, for comparison, there’s always the Thames Barrier –