Conferences 

Summary of the presentation

This presentation at Floodex UK was focused on the aftermath of the 1968 flood within the local community, scrutinizing the financial impacts and human casualties. The discussion covered the methods of reconstruction, adopting a tailored approach that incorporates numerical models like HEC-RAS and HEC-HMS for detailed hydraulic and hydrological simulations. The process also involved harnessing narratives and eyewitness accounts from the local populace to inform and enhance engineering practices. Moreover, the conversation extended to the strategies for future risk assessment to guide the forthcoming stages of the project. 

Summary of the presentation

This study reverse-engineers the 1968 flash flood on the River Chew in Pensford, UK, using historical data like recorded rainfall and eyewitness accounts. Hydrological (HEC-HMS) and hydraulic (HEC-RAS) models, combined with a Monte Carlo simulation, simulate the flood to analyze uncertainty in parameters like peak flow. The data was gathered from local community workshops and focuses on reconstructing the flood's peak hydrograph. This reconstruction aids in improving flood risk management and infrastructure design by understanding past hydrological responses. 

Summary of the presentation

By reflecting on the past, invaluable lessons are uncovered that illuminate the path forward, enabling the future to be navigated with resilience. Reconstructing historical floods allows for a grasp of the magnitude and impact of such events, thereby equipping us with the knowledge to better anticipate future flood risks. This research introduces an innovative reverse engineering methodology to reconstruct historical flood events. Due to the inherent uncertainty in this process, a Monte Carlo approach is employed to account for a wide range of possible outcomes. HEC-RAS 2D is calibrated and used as the main tool for this study.