in 200 B.C E
2700 years old
A dam controls flooding by regulating water flow in rivers and reservoirs, storing excess water during heavy rainfall and releasing it gradually to prevent downstream flooding. However, if a dam is poorly managed or experiences structural failure, it can cause flooding by releasing too much water suddenly. Additionally, if the reservoir behind the dam becomes full, it may lead to controlled releases that can overwhelm downstream areas, resulting in flooding. Proper management and maintenance are crucial to balancing flood control and risk.
the dam has increased the annual flooding of the nile river
McDonald Dam failure happened in 1900.
Flooding is often the result of wet weather. It could be caused by the rapid thaw of snow, or other things like a dam failure.
In areas above the dam (mainly Sudan) the effects of annual flooding is still observed, this occurs in the "summer" season from about May through September.The Aswan High Dam that controlls the flooding of the Nile in Egypt was completed in 1970, since then no unregulated flooding has occured below the dam.Thus the fertility of the soil in the Lower Nile Valley will not now be renewed naturally on an annual basis as it was in pre-dam times.
flooding
the dam has increased the annual flooding of the nile river
Uncontrolled flooding as in the past.
control water flow
A dam
A dam