NextPrevious

Hazards and Disasters

Floods

What is a floodplain

A floodplain is the area surrounding a river that, when unmodified by human structures, would normally be flooded during a river flood. A floodplain can be a few feet or many miles wide, depending on the river flow as well as the local terrain. Even though levees and flood walls can be built (with homes and businesses built just behind them), the floodplain does not vanish. If the structures break or are damaged, the water from a flood can fill a floodplain, just as it did before humans occupied it.



Close

This is a web preview of the "The Handy Geography Answer Book" app. Many features only work on your mobile device. If you like what you see, we hope you will consider buying. Get the App