Flood is a natural disaster. However human activities in many circumstances change floodrnbehavior. Activities in the catchment such as land clearing for agriculture may increase thernmagnitude of flood which increases the damage to the properties and life. Fogera Woreda isrnone of the most severally flood affected areas in Northwest Ethiopia in general and Ribb-rnGumara Catchment in particular. It is situated in the downstream part of Ribb and GumararnRivers. Relatively dense population and different landuses are found in this area, which arernvulnerable to flood hazard. Intensive agricultural activities on steep slope areas of therncatchment and its expansion decrease the abstraction of rain water and there by changedrnquickly to flood water. The high magnitude of water that enters in to Ribb and Gumara riversrnoverflows these rivers. For a number of reasons the most frequent choice should be protectionrnfrom the flooding by revilagizing the people to the safe ground, but there is also a need for arnbroader and comprehensive program for managing flood hazard in the study area. Floodrnprotection has been helpful and must be continued. Side by side other preventive tools likerneffective landuse planning, creation of a computerized GIS database for the flood prone areasrnand a detailed flood risk assessment and mapping are required to minimize the harmfulrneffects of flood hazard.rnTherefore, an attempt has been made to apply modern techniques like GIS and RemoternSensing for the assessment of flood hazard and flood risk in Fogera Woreda. The floodrncausative factors were developed in the GIS and Remote Sensing environment and weightedrnand overplayed in the principle of pair wise comparison and MCE technique in order to arrivernat flood hazard and flood risk mapping. Landuse/landcover change detection was done for therncatchment using the 1985 and 1999 Landsat images and shrub lands, grass lands and openrnwood lands were found to be decreased in areal extent while agricultural lands and swampsrnwere increased. Comparison between long year (1974-2006) annual maximum daily rainfallrnand annual maximum daily gauge levels (1971-2005) data of Ribb and Gumara rivers showedrnthat rainfall slightly decreases while gauge level increases, and this can be attributed tornlandcover removal especially in the upper catchment. Flood frequency analysis was donernusing Ribb and Gumara rivers annual daily maximum gauge levels and the likely flood levelsrnin different return periods were found. DEM and the 100 year return period base flood wererncombined in the GIS environment in order to produce flood inundation maps. Results fromrnthe overlay analysis and from the flood frequency analysis soundly agree to each other. The major findings of the study revealed that most of the PAs in the down stream part of therncatchment and the different landuses in these areas are within high to very high flood hazardrnand flood risk level. The presence of risk assessment mapping will help the concernedrnauthorities to formulate their development strategies according to the available risk to thernarea.rnKey words: Flood, Hazard, Risk, GIS, Remote Sensing, MCE, Flood Frequency Analysis,rnLanduse/Landcover Dynamics, Fogera Woreda, Ribb-Gumara Catchment.