Hydraulic Analysis and Improvement of Water Distribution Networks of Dutse Metropolis, Nigeria

In order to satisfy the water demand of the continuously growing population, it is essential to provide an adequate quantity of water through a well-designed network of pipes in Dutse Metropolis of Jigawa State, Nigeria. Insufficient network coverage in commensurate with the rapid infrastructural development and inadequate supply of water to Dutse Metropolis has, over the years, caused hardship to people in the town. Presently, the system produces a total of 1,801,728l/d against the current demand of 7,793,760 l/d indicating a gross deficiency of up to 76.9%. This study employed EPANET 2.0 to conduct hydraulic analysis of water distribution in Dutse Metropolis with a view to propose improvement measures. Results indicated that water coverage in the present network can only reach 70.45% of the town for only 2 hours at the desired pressure head. The water demand of the town was projected to 2026 and found to be 9,975,960 l/d. The network was re-designed to meet the future demands and results indicated that the new network can supply water for an extended period of 15 hours with 95% of the area having pressure head varying from 25-65 m and flow above the minimum recommended value of 0.3 l/s. The proposed pipe reticulation is estimated to cost N1,207,892,686. The outcome of the study was recommended to the Government for strategic planning and implementation application.