In the current state of alert as the Venice sea levels have risen by 1.56 meters to reach the highest level of the last 20 years. 
Almost all the roads of the city center and the famous Piazza San Marco, is covered with water and the movement is extremely difficult. 

The sea level would rise by 1.66 m. today reporting a record 30 years. 

Venice flooded on average 200 days a year. 

In February 1986 the water level reached 1.58 meters above the average height, while in December 1979 the sea level rose by 1.66 m. 

The greatest flood recorded on 4 November 1966, when sea level rose by 1.94 m, while throughout Italy knew devastating floods. 

The authorities of the city built submarine barrier to protect the city, which is expected to be completed in 2011.