Dam-break flood risk assessment

Dam-break floods are in a different position in comparison with the other types of flood due to its great negative consequences. Analysis of dam-break floods is crucial to reducing threats of potential dam failures. In this study it is aimed defining and assessment of risky zones at Kirazdere (Yuvacık) Dam downstream area through as a result of possible dam failure. In this aim, digital map datas of Kirazdere (Yuvacık) Dam and downstream area were arranged at GIS software and three-dimension (3d) terrain model was achieved for dam-break flood modelling. Using that 3d area model and USACE HEC RAS software, dam breach parameters that are suitable for dam breach scenario were obtained then it was analysed dam break flood at study area. Result of study, it was obtained dam-break flood wave propagation maps (depth maps, velocity maps, inundation maps), dam-break flood wave route and hidrographs that it will be composed after a possible dam failure at Kirazdere Dam and it was defined risky zone at downstream area of Kirazdere (Yuvacık) Dam.