Estado da arte da drenagem urbana no município de Goiânia - GO

Abstract

The drainage system encompasses key elements such as infrastructure, runoff measures, treatment, disposal of stormwater, and monitoring of flood flows, considering social, legal, technological, and environmental aspects. Urbanization prioritizes impermeable surfaces, causing alterations in the natural environment and affecting the hydrological system and management of stormwater in urban areas. Consequently, problems arise, including soil impermeability, increased runoff in channels and conduits, floods, erosion, accumulation of waste, and degradation of stormwater quality. These impacts reveal the lack of sustainability in the traditional model of urban stormwater management. Therefore, non-structural measures such as legislation and municipal management are necessary to mitigate these issues. This study aimed to conduct a historical analysis of the drainage system in the city of Goiânia, encompassing management processes, planning, regulations, and existing infrastructure, based on the collection of public, academic, and institutional data. It identified challenges such as the lack of planning, disorderly land occupation, surface impermeability, and inadequate oversight and investments. In this context, it is crucial to adopt measures such as managing Areas of Permanent Preservation (APPs), enforcing land use regulations, and implementing a new Drainage Master Plan, incorporating sustainable approaches and new technologies. Additionally, the revision of municipal laws and guidelines related to the topic is essential to promote efficient management of the drainage network, enabling informed decision-making, sustainability, and proper system maintenance.