Mohiuddin Zakaria
Flood is overflow of huge amount of water on the normally dry land. The EU flood directive defines flood as ‘a temporary covering by water of land not normally covered by water’. In broader sense, flood can be classified in two types as: natural flood and catastrophic flood. Natural flood is the flood that is caused naturally by the overflow of huge volume of water from rivers, lakes, oceans, or by heavy rains, etc. On the other hand catastrophic flood is the flood that is caused by some significant and unexpected events, for example dam breaching,