Gis In Bacho Plain Flood hazard mapping is used to determine the areas susceptible to flooding whenrndischarge of a stream exceeds the bank-full stage. Using historical data on river stagesrnand discharge of previous floods, along with topographic data, maps can bernconstructed to show areas expected to be covered with flood waters for variousrndischarges or stages. An effort was made in this study to identify flood hazard areas inrnBacho Plain using GIS technology. Bacho Plain is an agricultural potential area in thernwestern extreme of Upper Awash Valley. The area is drained by a number of largernperennial rivers which are tributaries of the largest Awash River. The study area isrnspread within an extent of 1,539 sq km. Bacho Plain experienced flooding problem ofrndifferent level (very low to moderate) almost every year and major floods every fivernyears for the last two decades. These destructive floods were detrimental to BachornPlainâ€™s vulnerable social and economic development due to loss of lives andrndestruction to properties. Settlement areas and agricultural fields are situated along thernriver banks, which are severally vulnerable to flooding. The main objective of thernstudy was to develop landuse zonation map of Bacho Plain area, and to identify thernareas vulnerable to flood. Accordingly classified flood hazard map was developedrnusing GIS and the landuse pattern was identified within the hazard areas. Floodrnhazard map was classified into five categories very high, high, Moderate, Low andrnvery low. The weighted overlay analyses also showed that most of the cultivatedrnlands, settlements, swampy land areas are in high to very high risk while thernremaining are very low to low risk areas