The natural function of a floodplain is to provide temporary storage and conveyance of flood waters in the event of a flood. Typically these areas are low areas immediately adjacent to streams and rivers. Effective conveyance and storage of flood waters is best achieved in areas free of development and infrastructure.
Having areas where water can enter, exit, and absorb without causing damage is ideal. The Fox River Park in Ottawa, is a prime example of any area that has been converted from a once developed neighborhood with extreme flooding and loss damages, to a riverfront park that allows for flood storage in the event of a flood and a recreational asset the remainder of the time.