And it is becoming the adverse effect on urban development and public health. The existing situation of water supply system in Adama and other of the different developing countries, not meet the demand. Water shortage and frequent service interruption is not only as a consequence of the shortfall between demand and supply but also as result of unidentified leakage and complicated network systems. It is a challenging task for the water supply board to operate the system to deliver drinking water of required quantity and quality. An urban water distribution pipe network consists of huge capacity of pumps, pipes, valves, reservoirs and tanks. The supply of water is not able to meet the demand due to several reasons like shortage of source water, high amount of leakage, poor maintenance of the system etc. Water resources are limited and this requires better management of water resources and supply. Increase in population is causing an ever increasing demand on water supply system. Introduction Water is a precious natural resource and management of water is a challenging task in developing countries. In this process of modeling and analysis the tools such as Microsoft excel and Water CAD v6.5 was used.ġ. Areas with high pressures in the existing system have been identified and efficient hydraulic network model was provided. In the modeling, the system has been modified using the design criteria of velocity and pressure. Also average per capital consumption is 34.5 l/c/d, whereas the average of water connection per family was 0.527 (52.7%) connection per family. In the town, the distribution of mode of services house connection, yard connection and public tap were 5%, 60% and 35% respectively. Also, the prevalence of water connection per family, per capital consumption and the level of mode of services have been used in assessment of water supply coverage. In this study, data of Water production and consumption, the pressure zones or topography and customers’ meter reading (water billed) approaches was used to evaluate the daily consumption and production. The aims of this research is to assess the situation of the urban water supply and build hydraulic network model with all possible scenario used to meet water supply with demand.
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