Venice, Italy is sinking at about 1mm per year. The sea level in the Northern Adriatic is rising. At peak tidal conditions, referred to as acqua alta, almost half of Venice’s streets have been known to flood. None of this is new and for the last 17 years, the city has been building a series of 78 moving barriers in the three inlets to the Venician lagoon, to prevent city flooding.
The project, called MOSE (MOdulo Sperimentale Elettromeccanico, Experimental Electromechanical Module), has been plagued by delays, cost overruns, and scandal and has often been called a failure in the media. Nevertheless, on October 3, something remarkable took place. During a particularly high tide, the MOSE flood gates were raised and they worked. The waters of the Adriatic were held back. The streets of Venice did not flood.