People were wondering what happened.
Famine.
The Yellow River Flood happened in China and the reasoned why it happened was because it was raining too much and there is flat land so it made it easy for it to flood everywhere in that area.
In many years through the centuries.
2 years
200 years
The River Yangtze floods roughly every 2 years, but most of these floods are not major.
It doesn't. It hasn't flooded for nearly 60 years.
The flood plain of a river is an area very near the river which floods regularly, generally every 1 to 2 years. The 100-year flood plain is a larger area which has a 1 in 100 chance of flooding in any given year. Over the long term this would average out to a flood every century.
The gold Rush happened
Clara Barton helped the people affected by the Johnstown Flood by bringing in doctors, nurses, and supplies. The flood happened in 1889 a few years after she had founded the American Red Cross.
Well, it depends on the depth of the river. If it is shallow it will flood more regularly like every 9-10 days but if it is quite deep it will flood about every month. Hope this helps!!!
A flood plain can be described as a relatively low flat land that borders a river that is subject to flooding every few years. Most people do not like to build on a flood plain because they do not want their housing damaged every few years by floods.
some raw backs of building Flood-Control Dams are it is EXTREMELY expensive, and takes many months to years to build. It also disrupts a river system.