Tag: acqua alta

Watch your feet!

The paving on the streets and in the squares of Venice is largely composed of masegni, large stones made out of trachyte quarried in the Colli Euganei. Even the paving has historic significance.

But how high is high-water?

In Venice (and only in Venice) the median level of the sea as measured in 1897 is used as the reference level. The reason is so that the situation of embankments and buildings in relation to the tides may always be monitored with respect to the same reference point, known as the ‘tide-level-zero’ at the Punta della Salute, where a monitoring station is located. In the rest of Italy, the median sea level (IGM) refers to the level in Genoa in 1942, which is about 23 centimeters higher.

Tide Level Zero of the Punta della Salute

Indicates the median tide level, in reference to the tide-gauge at the Punta della Salute. The tide-level zero at the Punta della Salute is approximately 23 cm lower than the tide-level zero established by the Istituto Geografico Militare (IGM).

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