FLOOD PROTECTION METHODS THEIR APPLICATION AND LIMITATIONS

Abstract

Floods are natural phenomena which are caused by the concentration of rainfall in the catchment of the river, and occur, when the resulting run—off in the form of. river flaw, exceeds that the river channel can carry within its banks. The safeguards against the floods are flood protection methods. The various methods generally employed are U) works to store or detain the excess water si h as storage reservoirs or detente Lion basins (ii) works to confine the flood flow by embankment (iii) works to Increase the cap ity of the existing channels such as by river training and out-o `e (v) soil conservation. The above flood protect ion methods are normally adopted • The limitations of each of the methods which have to be taken into account while planning flood protection in sped .«» tied areas are discussed in this dissertation