This thesis focused on assessment of the hydraulic performance of existing water distribution system: arncase study on Finote-Selam town, Amhara region, Ethiopia. The main objective of this study is to checkrnthe hydraulic performance of Finote-Selam town water distribution system by assessing demand andrnproduction of water, losses of water, hydraulic parameter. rn Both secondary and primary data sources were used for this study. Primary data was collected through arnface-to-face interview, field survey, and photographs of relevant sites and infrastructures. The secondaryrndata was collected from design document, literatures, journals and reports. Moreover, to analyze existingrnwater distribution system a model was developed by using Water CAD software. The model can be usedrnto identify the zone of higher and lower pressure junctions and velocity though the pipe. The modelrnsimulation run was performed for peak and low demand scenarios to analyze the distribution system. Forrncalibration of water distribution system, pipe roughness was considered as the primary calibrationrnparameter in this study.rnThe analysis shows that the current total domestic water demand in town was 1536.75mrn3rn/day, the water rnsupply coverage was 82.4 % and average per capital domestic water consumption was 37.9 l/c/day.rnHence, this result indicates there is a gap between demand and supply. The water loss of the town wasrn32.18% from the total water production. The apparent loss covers 9.18% while, the real losses coversrn23% of the total losses. Simulation results for maximum and minimum pressure and velocity differentrnscenarios were used as a base tool to evaluate the hydraulic performance. Modeling results showedrnviolation of maximum and minimum pressure and velocity criteria at different junctions and pipes. Afterrnmodifying the existing water distribution system 92.18% of the junctions are in the recommendedrnpressure range and 75.46% of the pipes are in the recommended velocity range.rnGenerally the result of the analysis shows that the overall hydraulic performance of water distribution ofrnthe town was poor, which is reflected by low water production rate, low water consumption, and highrnlevel of Non-revenue water, low service coverage, not velocity and pressure in permissible range.rnTherefore, it is significant to rehabilitate and improve the water distribution system capacities,rnestablishing pressure zone, increase pumping rate and drilling additional borehole. In addition providingrnmore attention to water losses reduction policies and strategies are vital for remedial measures.