How can Floodplains happen?

-This happens from Erosion and Deposition -Erosion takes away the Interlocking Spurs, which results in Wide, Flat area being Established both sides of the River -When a flood occurs, Material is Deposited, because the River loses its Speed and Energy to take the Material -The Height of the Floodplain increases with time, because Deposition occurs on the Sides of the River.