The most serious floods occurred in 1856, 1866 and 1911.

Two most recent major floods occurred in 1999 and 2007.

During the city's history several floods have occurred, the last one being in the late 1970s.

The most serious recent floods occurred in 2005, 1997, 1995, and 1986.

And second flood occurred in October 2009, after 17 years.

Major floods occurred in the city during 1865, 1936, 1972, 2006, and 2011.

The largest flood occurred in 1824 and killed several hundred people.

An earlier devastating flood occurred on the river in 1868.

More than 300 floods have occurred since the city was founded in 1703.

In 1962 and 1971 again major floods occurred which threatened the building.