Posted on June 29, 2026
Billion-dollar project prepares new connection between Santos and Guarujá with unprecedented underwater work in the country, hiring professionals and public space to present history, technical data, and model of a crossing awaited for decades in the Baixada Santista.
The construction of the Santos-Guarujá Tunnel, on the coast of São Paulo, has entered the preparation phase with the hiring of workers, organization of the construction site in Guarujá, and creation of a public space to gather information about the project.
With an estimated cost of R$ 6.8 billion, the work will have 870 meters under the port channel and promises to create a dry connection between two of the main cities of the Baixada Santista.
Responsible for the execution, Mota-Engil signed the Public-Private Partnership contract with the Government of São Paulo on January 28, 2026, after winning the auction held at B3 in September 2025.
Under the agreement, the Portuguese group will be in charge of the construction, operation, and maintenance of the crossing for 30 years, within a model that combines public resources and private investment.
Public room will gather data and history of the tunnel
Next to the future construction site in Guarujá, the Santos Port Authority intends to open a room aimed at the public and also at technical meetings related to the progress of the tunnel.
In this environment, project data, historical information, and the model currently installed at the Technological Park in Santos should be concentrated to facilitate public access to the enterprise.
According to APS president Anderson Pomini, the proposal is to create a reference point for residents, workers, students, and representatives of entities interested in understanding the complexity of the work.
“The idea is to centralize 100% of the information in this room for everyone who wants to know the complexity and history of this work,” said Pomini, explaining the purpose of the space planned in Guarujá.
After the completion of the dry connection between Santos and Guarujá, the intention is to preserve the memory of the enterprise at another address, with the possibility of transferring this narrative to Parque Valongo, in Santos.
