There was the 306 anniversary since the first flood in St. Petersburg

In the case of floods the inhabitants of St. Petersburg was announced by cannon shots from a spy-glass house, Galley harbor and Admiralty and the beating of drums and ringing bells.

In 1897 at the Central Physical Observatorywas created "Service flood on the Neva".

The most disastrous floods occurred in the city in 1777, 1824 and 1924. During the first flood water destroyed all the fountains of the Summer Garden and many wooden houses.

Throughout its history St. Petersburg more than 300 times was the victim of catastrophic flooding. They occur almost every year and most of them in the late autumn.

News source: petersburgcity.com