Billion-Dollar Investments Are Underway in South America, Transforming the Infrastructure of Countries Like Brazil, Peru, Chile, Argentina, and Colombia. These Megaprojects Promise to Revolutionize Areas of Transportation, Energy, and Connectivity, with a Direct Impact on Trade and the Quality of Life of Local Populations. Check Out the Key Details of the Eight Largest Megaprojects in South America Underway and How They Are Shaping the Future of the Region.
Embark on a Journey Through the Eight Largest Megaprojects in South America Underway, Aiming to Transform Infrastructure, Transportation, and Energy Supply Across Several Countries. Discover Initiatives Ranging from Gigantic Ports and Railways to Renewable Energy Projects and Bridge Construction that Promise to Impact the Lives of Millions of People.
Ongoing Projects in South America
1. Chancay Port (Peru)
Beginning our list of megaprojects in South America, Chancay Port, located 70 km from Lima, Peru, will be the largest port in the region. With an investment of around R$ 20 billion from the Chinese company CCO, the deep-water port will occupy 1,000 hectares on the Pacific coast, capable of accommodating ships of up to 21,000 TEUs, surpassing the capacity of the port of Santos in Brazil. Construction began in 2019 and is already 91% complete, with the expectation of reducing transport time to Asia from 35 to 20 days, directly benefiting logistics and trade between the continents.
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Israel, Greece, and Cyprus signed an agreement in 2020 to transport gas from the Mediterranean to Europe via a 1,872 km pipeline, but Turkey claimed sovereignty over part of the maritime route, and the project never materialized.
2. Renewable Andes (Chile)
Another highlight among the megaprojects in South America is Renewable Andes in Chile, with the goal of supplying 70% of the country with renewable energy by 2030. With 10 wind and solar parks in three phases (Condor, Huemul, and Copihue), this project will have the capacity to generate up to 2 GW, supplying more than 2 million homes. The first two phases are completed, while the final phase begins in 2024.
3. Bogotá Metro (Colombia)
The much-anticipated Bogotá Metro aims to alleviate the city’s chaotic traffic, which is one of the most congested in South America. With an investment of R$ 25 billion, the line will be 24 km long with 16 stations, connecting the south to the north of the city. The project, initiated in 2021 by a Chinese company, is expected to begin operations in 2028, serving 560,000 passengers daily, with a second line already planned to expand the system.
4. Rio-SP High-Speed Train and Salvador-Itaparica Bridge (Brazil)
Two transport megaprojects in Brazil rank among the largest in South America. The high-speed train between Rio de Janeiro and São Paulo aims to reduce the travel time between the two cities to an hour and a half, at an estimated cost of R$ 55 billion. Although facing financial challenges, the project remains on the agenda with discussions of international partnerships.
Meanwhile, the Salvador-Itaparica Bridge, measuring 12.4 km, will connect the Bahian capital to the island of Itaparica, with construction expected to start in 2025. At a cost of R$ 9 billion, the bridge will also bring road improvements to the region, facilitating access to the Recôncavo and Western Bahia.
5. Patagonia Dams (Argentina)
In Argentina, the Patagonia Dams are set to transform the country’s energy supply. Located on the Santa Cruz River, the Kirchner and Cepernic dams will have a combined capacity of 1,740 MW, significantly contributing to renewable energy generation. Under construction since 2015, the dams are expected to be operational by 2028, marking an important step in the country’s energy diversification.
6. Expansion of São Paulo Metro (Brazil)
The expansion of São Paulo Metro ranks as one of the largest urban megaprojects in South America. With an investment of R$ 50 billion, the expansion includes the Orange Line 6, connecting the northwest to the center, benefiting about 600,000 passengers per day, and the Gold Line 17, a monorail that will link Congonhas Airport to the metro network. The expansion, expected to be completed by 2025, is set to serve millions of passengers and improve urban mobility in the city.
7. Bioceanic Railway (Brazil, Bolivia, and Peru)
The Bioceanic Railway, known as the Bioceanic Railway Corridor, is the largest railway project underway in South America. Stretching 4,900 km, the railway will connect the Port of Santos in Brazil to the Pacific ports in Peru, passing through Bolivia. This megaproject, estimated at R$ 100 billion, aims to facilitate trade between Asia and South America, reducing costs and transport times, and boosting regional development.
8. Belo Monte Hydroelectric Complex (Brazil)
Concluding our list of megaprojects in South America, the Belo Monte Hydroelectric Complex in Brazil is one of the largest power plants in the world. Located on the Xingu River in Pará, the plant generates 11,233 MW, making it essential for the country’s energy supply.

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