Estudios y diseños a nivel de prefactibilidad de un acueducto en el sector rural de Bucaramanga a través Marco Lógico

Abstract

This graduate thesis addresses the problem of deficient access to potable water in the rural area of Bucaramanga, where a coverage gap affects 61.3% of the population, forcing them to consume water from unsafe sources with a subsequent impact on public health. In this regard, the general objective was to develop the pre-feasibility studies and designs for an aqueduct in said sector, using the Logical Framework Approach to ensure the viability of the public investment project. As a method, a mixed approach was applied, combining the structured planning of the LFA with the execution of specialized technical studies: a hydrological analysis, a geotechnical study, and the preliminary design of the hydraulic infrastructure. The main results determined that while the Alto Lebrija basin is under water stress, the Quebrada Lajas micro-basin is a viable source with a theoretical surplus of 2.17 m3/s, although its quality requires a full Water Treatment Plant (WTP). Geotechnically, Zone 4A was identified as suitable for construction, but the use of deep foundations was recommended due to high seismicity and soil heterogeneity. In the discussions, it is established that the project's viability is conditional upon the integration of these findings: the exclusive use of the viable source, the mandatory construction of a complete WTP, and strict adherence to geotechnical recommendations, thereby justifying the selection of constructing a new aqueduct as the only comprehensive and sustainable long-term alternative.