For the first time a system of 78 mobile floodgates has actually been evaluated in Venice, after years beleaguered by hold-ups and corruption.
The 1.5 km (one-mile) Mose system of yellow dams was a “powerful job that has taken years to complete”, stated Prime Minister Giuseppe Conte.
Venice was struck by the worst floods in half a century in November 2019.
Environmental protesters required to the lagoon on Friday, saying the barriers would damage the area.
Critics argue the sluice-gate system is 10 years too late. Deal with the Mose job begun in 2003, even though it was created in the 1980 s. It has gone three times over its initial spending plan and led to the arrest of lots of officials, the BBC’s Quentin Sommerville reports from Rome.