Our program
The Upstream Dam De-characterization Program covers 30 structures and is scheduled for completion in 2035. De-characterization is a complex technical process, and each structure has its own characteristics and challenges. Therefore, the timeframe for each project is defined based on specific studies, ensuring that all stages are carried out with complete control and safety.
Only available in portuguese.
Legenda da imagem
Commitment to safety and the environment
Photo: Pedro Gravatá
Upstream Dam De-characterization Program
Schedule for Structures Undergoing De-characterization and yet to be De-characterized
Downstream Containment Structures (DSR)
As part of measures to enhance safety during the de-characterization of higher-risk dams, Vale built Downstream Containment Structures.
These additional structures are installed downstream of the main dam and are intended to contain tailings and limit the reach of materials in the event of breach. This preventive measure reinforces Vale's commitment to protecting communities and the environment.
Photo: Fernando Piancastelli
Between 2020 and 2022
We completed the construction of four DSRs in Minas Gerais: one for the Sul Superior Dam, in Gongo Soco; one for the Forquilha I, Forquilha II, Forquilha III and Grupo Dams, located between Ouro Preto and Itabirito; one for the B3/B4 Dam, in Nova Lima; and one for the Minervino and Cordão Nova dikes, part of the Pontal System, in Itabira.
In 2024
With the completion of the de-characterization of the B3/B4 dam in Nova Lima, the DSR that had been built was removed and the area was reintegrated into the environment.
In 2025
Photo: Videodelivery
B3/B4 – A Milestone in Dam De-characterization
In total, 3.3 milion cubic meters of tailings were removed in a short timeframe, given the project's complexity.
In addition to eliminating the risk associated with the structure, the project also included actions to repair and revitalize the area and support the local community, reinforcing Vale's commitment to the individuals' safety and environmental recovery.
In total, 3.3 milion cubic meters of tailings were removed in a short timeframe, given the project's complexity.
In addition to eliminating the risk associated with the structure, the project also included actions to repair and revitalize the area and support the local community, reinforcing Vale's commitment to the individuals' safety and environmental recovery.
Link to documents (Technical reports)
Anda mengakses pengalaman:
Anda mengakses pengalaman:
© Vale | Seluruh hak cipta.