These are then removed and stored when the flood event has passed.
Below is a list of flood events which were of significant impact to the country, since 2001.
It was considered a once in 500 year flood event.
The system has provided protection from 15 major flood events over the past 50 years.
The first bridge was washed away during a flood event around the turn of the 20th century.
Another significant flood event occurred in May of the following year.
One river, the Whakatane, was expected to reach levels seen in 50-year flood events.
When a body of water rises to this level, it is considered a flood event.
The dam is designed to handle a once in 5,000 year flood event.
The community was again affected during an extensive flood event in June 2008.