Bangladesh is one of the most flood prone countries in the world, which is situated in south Asian sub-continent. A location map of Bangladesh is given in fig. 1. Because of its unique geographical location and to1pography, flood of different magnitudes and types occurs every year. During the last half century at least 8 nos. of extreme flood events occurred affecting 50% of land area. Since early sixties of the last century the country has adopted different kinds of measures for flood management with mixed experiences.
