Alazar, AssefaDemu Tura, Dufera2019-04-042023-11-082019-04-042023-11-082018-11http://etd.aau.edu.et/handle/123456789/17591The thesis is submitted to Ethiopian Institute of Architecture, Building Construction and City Development /EiABC/ and to school of graduate studies of Addis Ababa University in the partial fulfilment of the requirements for the degree of Master of Science in Urban Design and DevelopmentStormwater runoff is the major challenge in urban areas due to the increase in impervious surfaces, higher rate of urbanization and rapid economic growth. EiABC campus is, among institutional plots in Addis Ababa, recently has been transformed into more impervious surfaces characterized by 46% of surfaces developed as buildings, roads, parking lots and pedestrian walkways. The stormwater runoff generated from these impervious surfaces transported into municipal drains and roadway without any interventions that are found to result in chronic impairment of surface water quantity and quality. The objective of this study is to investigate the opportunity of the passive rainwater harvesting system from the impervious ground surfaces of institutional plots in urban areas for its stormwater management and green area improvement. The GIS and remote sensing were used to produce a suitability map for selecting the ideal location for the placement of water harvesting structures in the EiABC campus. The Bio-retention system was selected among the others Best Management Practices and eventually developed at the selected site within the compound. The quantity of stormwater was estimated by a rational method and the quality parameters were collected on site and processed in the laboratory. The study estimated that 620.4m3 of surface runoff was harvested through Bio-retention system from 4122m2 drains area. The Bio-retention average removal rates for pollutants of TSS, TDS and Turbidity were 76.92%, 59.2%, and 45.67% respectively. This indicated that the quantity and quality of stormwater were managed through the development of simple rainwater harvesting structure as a Bio-retention systemenRunoffBio-retentionStormwater qualityStormwater quantityThesis