Water and Environmental Engineering

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Natural Runoff and Development of Infiltration System in Faria Catchment
(2008) Baha’ Rasheed Fayeq Salahat; Dr. Hafez Q.Shaheen; Dr. Anan F.Jayyousi
This study suggests proper management of the runoff water in Faria catchment and how to capture the excess rain during the rainy season. The study has been performed in the frame of EXACT project to develop an integrated prediction-optimization model for water harvesting, storage and utilization in Faria catchment. An integrative study of the methods for rainfall-runoff simulation has been performed. The modeling of the runoff is based here on a presumed strong causal relationship between runoff and rainfall as the only available input data. Hydrometeorigical data such as annual total, annual daily rainfalls and catchment outlet runoff for several events were analyzed through statistical methods and applying EXCEL and GIS program utilities. A regression relation between rainfall intensity and runoff coefficient has been developed. Earth fill dam is proposed to return the surface runoff. Volume quantification, site selection and design criteria of the earth fill dam were developed and identified. Further hydrograph simulation and routing of the flow were done. The development of the suggested infiltration system to recharge the groundwater resources by constructing the earth retention dam at the selected site in Upper Faria catchment is seen as an important requirement for the development of the water resources in the area.