Flooding means there is an excess of water on land that is normally dry, floods can be caused by heavy rainfalls, hurricanes, or lack of proper drainage in urban areas where there is little open soil to absorb water.
A floods, whether fluvial, when rivers burst their banks or pluvial, when rainfall overwhelmes draimage systems before it reaches rivers, are caused because the rain cannot soak into the soil fast enough.
Canals are artificial water channel that can be crucial to flood prevention. Canals facilitate control of water levels passing through and form linear reservoirs and water locks.
Improving water drainage helps control floods by facilitating easy flow of excess water, especially in urban areas during flash floods.
New buildings should be constructed one metre high from the ground to prevent flood damage.