Abstract:
Floods are becoming a more pronounced disaster in many parts of the country costing lives and also damaging property one observation is that information on floods appears not to be well documented and actually no institution seems to be in charge of these particular disasters. (Mary,2013) Due to the varying climatic conditions, floods and drought seasons, considerations have to be made-for storage of the excess. flood water to: cater for the drought periods- in Sototi region.
The research detailed in this thesis not only shows an approach for design of a flood control reservoir, but also provides an analysis of the ascertainment of flood frequency ‘in the Awoja catchment This thesis is divided into five chapters, Following the introduction which is chapter 1 a comprehensive literature review was performed, which resides in Chapter 2. The third chapter contains background information on GIS and GIS tools, as well as information on the data files that were used in the research. Chapter 4 provides a brief explanation of the methods used 10 calculate the required parameters from the acquired data sets, Chapters 5 contains the detailed methodology used, and 6 presents the conclusion, recommendations made in line with tile project and also helpful for further research in this area. Although weather forecasting and telecommunications have reduced human losses from floods the amount of flood damage continues to increase worldwide. The purpose of flood control is to reduce by 20 or 50 percent the peak flow value of these high floods.
The hydrologic phase is more elusive than the physical phases that include the dam, spillway, and reservoir, Nonetheless, good engineering design in the hydrologic phase as well as in the other phases produces benefits of favourable construction, maintenance; and operation costs for the project. This study was under taken to fulfil the need for improved methods of analysis and design of a reservoir for flood control. The knowledge of the hydrological behaviour of a river is valuable information useful for many purposes from the regulation of water resources used for the management of extreme events design of hydraulic structures and for many environmental issues conservation
