Evaluación de Amenaza por Inundación y Avenidas Torrenciales en los Sectores Priorizados de la Comuna 10 y 11 del Municipio de Bucaramanga

Abstract

The study addressed the objective of zoning flood and torrential flood hazards using a multidisciplinary approach that integrated hydrological, hydraulic, geotechnical, urban planning and social criteria. The development methodology included the use of hydrological models to simulate peak flows and evaluate return periods, complemented with geographic information systems (GIS) to analyze topography, watershed morphometry and land use. In addition, geotechnical studies were carried out to determine soil stability and evaluation sheets that identified socioeconomic and structural vulnerabilities in the dwellings in the study area. The results showed that the upper part of the Chiquita stream presents a low risk of flooding due to its topography and the capacity of the existing channel; however, the torrentiality analysis revealed characteristics associated with its drainage density and basin shape. Recommendations included the relocation of exposed elements, drainage channeling, sewage collection and the construction of mitigation works, as well as social considerations for urbanization management and control. This approach made it possible to accurately delimit hazard areas, prioritize mitigation measures and strengthen territorial planning to reduce future risks.