Flood is among the most common widely recognized and destructive natural hazards causingrnextensive damage to infrastructure, public and private services, the Environment, the economy andrndevastation to human settlements. The objective of this thesis is Evaluation of flood hazard andrnrisk prone sites: the case of upper awash basin. To achieve the objective flood assessment isrnperformed using a Multi Criteria Analysis (MCA) in a GIS environment. To produce the floodrnhazard seven flood causative factors were considered, these are the reclassified, Elevation, Rainfallrnintensity (precipitation), Drainage Density, Elevation, Slope, Distance to River, soil type and Landrnuse/cover map of the study area. The result has revealed that, 9.18 % of the basin was characterizedrnby very high flood hazard level and 36.08 % of the study area was characterized by high floodrnhazard level. On the other hand 45.14 % of the study area fall under moderate hazard level zone.rnThe rest of the study area which is 9.46 % and 0.14 % falls under low and very low hazard levelrnrespectively. Flood risk assessment was done by taking the population and land use land cover asrnelement at risk. Unlike the flood hazard analysis the result of flood risk analysis shows that 4.43,rn15.73, 41.35, 28.82 and 9.67 percent of the area of the upper awash basin were subjected to veryrnlow, low, moderate, high and very high flood risk respectively. For flood inundation modellingrnLog Normal distribution, Gumbelâ€™s distribution and Log Pearson distributions were compared tornchoose best distribution for estimation of discharge at the return period of 5, 10, 25, 50, 100, andrn200 year, however flood extent map were prepared for the return period of 50, 100 and 200 year.rnFrom the result of 50 year return period inundation modelling it is observed that most flood depthsrnare in range of 0.00-0.52m which covers 27% of the total flood extent. The next highest portion isrncovered by 0.52-0.91m which is about 22%. Other flood depths 0.91m-1.60m, 1.60-2.47m andrn2.47-3.67m takes in decreasing proportion.