Preparation of the demolition design for the existing viaducts, preparation of the design for the new viaducts and the respective construction phasing for the Redevelopment of the Mercado Abastecedor Interchange in Antas, through the construction of 4 viaducts with a total length of 960 m (265 m, 156 m, 127 m and 412 m).
The decks consist of prestressed reinforced concrete ribbed slabs and are supported on hexagonal piers with variable geometry.
