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Brazil’s Imigrantes Highway Celebrates 50 Years with Plans for Major Expansion, Including a 6 km Tunnel and Third Lane to Ease Traffic to São Paulo’s Coast

Author profile image Fabio Lucas Carvalho
Written by Fabio Lucas Carvalho Published on 27/06/2026 at 09:50
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The Rodovia dos Imigrantes celebrates five decades with a new phase of modernization in the Anchieta-Imigrantes System. In addition to the electronic gantries of Siga Fácil, the Government of São Paulo is studying a third lane of 21.6 km, with a large part of the route in tunnels and a focus on safety, capacity, and the flow of heavy vehicles

The Rodovia dos Imigrantes celebrates 50 years as one of Brazil’s great road engineering works. Inaugurated in June 1976, it changed the connection between the Metropolitan Region of São Paulo and the Baixada Santista by overcoming the Serra do Mar with tunnels, viaducts, and special structures.

Built by Dersa, the road complemented the Via Anchieta, inaugurated from the 1940s. It became a corridor for tourism, regional mobility, and cargo to the Port of Santos, the largest port complex in Latin America.

Rodovia dos Imigrantes enters a new phase

Five decades after its inauguration, the Rodovia dos Imigrantes is preparing for a technological stage. The Siga Fácil System will have electronic gantries at km 29 of the Imigrantes and km 33 of the Via Anchieta.

The technology eliminates the mandatory stop. The equipment is in the testing and technological validation phase.

Siga Fácil replaces toll plazas with intelligent gantries, capable of identifying vehicles by license plates or tags. The model allows payment only for the distance traveled, with speed, efficiency, and fair pricing.

Supervised by Artesp, the system aims to reduce queues and accidents. Implementation will be gradual in concessions like Novo Litoral Paulista, Nova Raposo, and Rota Sorocabana.

Third lane may increase capacity

The Government of São Paulo is analyzing a new connection between the Plateau and the Baixada Santista. The third lane of the Imigrantes is under study and foresees 21.6 kilometers.

About 80% of the route would consist of tunnels. The project includes a tunnel over six kilometers long, expected to be the largest road tunnel in Brazil.

The proposal aims to increase operational capacity, improve road safety, and favor heavy vehicles. With the third lane, the capacity of the mountain section is expected to grow by 25%.

The descent capacity for trucks and buses may advance up to 145%, a relevant point for passengers and cargo to the São Paulo coast.

highway
Five decades later, the Rodovia dos Imigrantes is preparing a new phase of modernization with the implementation of the electronic gantries of the Siga Fácil System. Photo: Disclosure/Government of SP


Investments and Deliveries in the System

Since the concession, more than R$ 11 billion have been invested in the Anchieta-Imigrantes System in infrastructure, technology, conservation, and road safety.

Ecovias Imigrantes took over the administration in 1998. The main milestone was the second lane of the Rodovia dos Imigrantes, inaugurated in 2002, which increased operational capacity and incorporated environmental solutions.

Recent deliveries include the new User Service Base at km 46 of Via Anchieta, in Cubatão, and the modernization of tunnel lighting.

The concessionaire plans to complete the recovery of 100% of the pavement of the Anchieta-Imigrantes System by 2027. Improvements are also planned for curves on the Anchieta, a new escape ramp at km 46, and studies for new access routes to the Port of Santos.

Since the beginning of the concession, more than 3.4 million operational services have been performed, including mechanical assistance, medical services, traffic inspections, and removals.

Do you often use the Rodovia dos Imigrantes, Via Anchieta, or another route to go down to the São Paulo coast? Tell us in the comments how you evaluate the changes, the electronic toll, the safety in the mountains, and what improvements are still missing for drivers, truckers, and passengers.

With information from agenciasp.

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Fabio Lucas Carvalho

Journalist specializing in a wide variety of topics, such as cars, technology, politics, naval industry, geopolitics, renewable energy, and economics. Active since 2015, with prominent publications on major news portals. My background in Information Technology Management from Faculdade de Petrolina (Facape) adds a unique technical perspective to my analyses and reports. With over 10,000 articles published in renowned outlets, I always aim to provide detailed information and relevant insights for the reader.

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