Journal of Mechanical, Civil and Industrial Engineering ISSN: 2710-1436 DOI: 10.32996/jmcie Journal Homepage: www.al-kindipublisher.com/index.php/jmcie Page | 34 Detention Reservoir: Proposal for Flood Control in the Ipiranga Stream Basin, Juiz de Fora, MG, Brazil Henrique da Silva Pizzo 1,2 ✉ and Vinícius Martins Galil 1 1 College of Civil Engineering, Estácio University of Juiz de Fora, MG, Brazil 2 Department of Hydraulic Measurements, Municipal Water and Sewage Company of Juiz de Fora, Brazil ✉ Corresponding Author: Henrique da Silva Pizzo, E-mail: henriquepizzo.estacio@gmail.com ARTICLE INFORMATION ABSTRACT Received: 10 October 2021 Accepted: 22 November 2021 Published: 05 December 2021 DOI: 10.32996/jmcie.2021.2.1.6 In order to provide parameters for sizing a damping reservoir, which was intended to control the floods that occur in the Ipiranga Stream basin, a routine developed in Visual Basic for Applications (VBA) is used. From the identification of the most critical point of the flood, hydrological flow data are presented, estimated by dividing the basin into sub-basins, using the Rational method, resulting in a value of flow higher than the admissible one for the stream channel. The method used in dimensioning the reservoir was flood routing. After making a pre-selection of the most interesting place to position the reservoir, insertions of the situation existent were made to the VBA application, in order to generate scenarios and enable the choice of an ideal situation, in view of the presented constraints. A very acceptable and feasible result is pointed out, indicating general parameters for sizing a reservoir to control floods in the Ipiranga Stream basin. KEYWORDS Ipiranga Stream basin, detention reservoir, flood damping, flood routing 1. Introduction 1 The amount of impermeable soil and alterations in natural drainage systems are increasing as a result of the fast growth of metropolitan areas. As a result of the difficulty of rainfall infiltration, there is a significant rise in surface discharges, favoring the occurrence of floods (Kessler & Diskin, 1991). It is advantageous for the community if the urban area is designed in an integrated manner, that is, if all public works are planned in a consistent manner. When the drainage system is not included from the beginning of the urban planning formulation, it is extremely likely that when developed, it will be both expensive and inefficient. System planning must be carried out in accordance with well-defined standards, while constantly taking into consideration local, physical, economic, and social characteristics. The objective must be a realistic, technically and economically efficient drainage system project that maximizes advantages while reducing costs is compatible with other sector plans, and meets the needs of the community Fugita, (1986). For many years, a lack of urban planning allowed cities to flourish in a haphazard, occasionally chaotic manner, particularly in big urban areas. As a result, certain urban places were occupied and overused, with no infrastructure to offer performance that was acceptable with the mandated standards. Such events continue to occur in enormous numbers today, generating a variety of issues, the most prominent of which is urban flooding. To address the flood problem, it is common to consider expanding the drainage system. However, this is not always feasible, either monetarily or for other reasons, necessitating the use of alternate solutions. 2. Literature Review 2.1 Flood dampening reservoirs overview Temporary storage reservoirs are highly effective in reducing discharges in a portion of the urban drainage gallery system because they encourage the partial retention of runoff from rainfall. They are built interspersed in the network and store the pluvial flow during part of the concentration period of the upstream gallery, gradually discharging it in the downstream gallery, limiting the Copyright: © 2021 the Author(s). This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) 4.0 license (https://creativecommons.org/licenses/by/4.0/). Published by Al-Kindi Centre for Research and Development, London, United Kingdom.