Most countries in the developed world will have produced maps which show areas prone to flooding events of known return periods.
Two of these catastrophic flooding events significantly affected the river and its surrounds.
During that period there were at least five large-scale flooding events.
By June 22, the city estimated 3 million dollars had been spent directly towards this flooding event.
This term is usually limited to a flooding event and from ground level .
The overall flooding event caused $350 million in damage, of which half came from crop losses.
The most recent flooding events have been in 1990, 1997 and 2008.
Due to its potential for major flooding events, the city has developed one of the most extensive flood control systems in the nation.
"There's nothing good to encourage you to think we're going to avoid long-term flooding events."
"Often mainland Europe gets a common flooding event," he said.