Hydrological and Hydrodynamic Modeling for Flash Flood and Embankment Dam Break Scenario: Hazard Mapping of Extreme Storm Events

Simulation of dam breach scenarios can help in the preparation emergency action plans for real breaks or flash flooding events. The purpose this study was to identify flood-prone areas Al Wala Valley governorate Madaba Jordan through analysis Dam. Modelling breaches conducted under two scenarios: a Clear Day scenario and Probable Maximum Flood (PMF) scenario. former does not address various failure modes; rather, it addresses formation development as result structural failures like sliding blocks case concrete piping embankment dams. PMF scenarios, however, simulate unsteady flow pipes overtopping via consideration runoff hydrography. In scenario, be identified by in-depth data from previous extreme rainfall related hydrologic hydraulic then modelled using intensity-duration-frequency curves applied an hour-by-hour simulation discover most at risk future. present study, were collected inlet on 10 January 2013. data, which included discharge fed HEC-HMS software order calibrate hydrological parameters watershed Additionally, HEC-RAS tool employed determine outflow hydrography conditions across critical downstream locations, determined use dynamic flood wave-routing models. simulations revealed that, inundation would cover area 5.262 km2 event pipe failure. However, six-hour storm, twelve-hour twenty-four-hour flooded rise 6.837 km2, 8.518 9.390 respectively. failure, 13.171 inundated, according On other hand, twenty four-hour 13.302 14.249 14.594