Author(s): Jose Augusto Rocha Mendes; Silvio Luiz Giudice; Jonathan Bruno Moreira; Rafael Mandia Grossi Canali Machado; Andre Da Silva Mendes

Linked Author(s): José Augusto Rocha Mendes, Silvio Luiz Giudice, Rafael Mandia Grossi Canali Machado

Keywords: Dams Safety; Public Works; Dams Restoration; Dams operation

Abstract: The São Paulo State Water and Electric Energy Department – DAEE was created as a state autarchy by Law nº. 1350 on December 12, 1951, and since the time of its constitution it had a very diversified field of activities. However, its fundamental scope was the management of multiple use of water resources in the State of São Paulo, which placed it as a regional development body in view of the close link that water use has with the theme. In its broad spectrum of creation, the Department of Water and Electric Energy was assigned the task of planning the use of water resources and land that would benefit from the execution of hydraulic works, as well as the safety inspection of dams in the São Paulo State (legal attribution, conferred by Item I, Article 5, of Federal Law nº. 12.334 of September 20, 2010, amended by Law nº. 14,066 of September 30, 2020). The law establishes the National Dam Safety Policy and creates the National Information System on Dam Safety. The DAEE is responsible for inspecting dams intended for the accumulation of water for any uses, except for hydroelectric purposes, located in water courses under the domain of the State. In this sense, the DAEE has been working on two distinct and complementary work fronts: inspection and risk classification of dams in the State, which is supervised by the Technological Center for Hydraulics (CTH), and the other, carrying out interventions for recovery of the operational safety conditions of busbars considered to be of public interest, which has been developed by the Engineering Management (GEN), from DAEE´s Engineering and Works Directorate (DEO). The present work aims to report the main recovery interventions carried out in dams already carried out, presenting the evaluation methodologies used, as well as the technological solutions developed and the results obtained in interventions developed by GEN. The history, case studies and proposed and ongoing interventions are presented for the Grande Lago dams, in the municipality of Lindoia; the Cotrins public supply dam, in the municipality of Artur Nogueira; the Lagoa Rica Farm, in the municipality of Iaras; and the dams Nossa Prainha and Lago do Holandes in the municipality of Holambra.

DOI: https://doi.org/10.3850/IAHR-39WC2521711920221675

Year: 2022