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São Paulo Metro's Giant Tunnel Borer Starts Digging to Guarulhos on Thursday
The Hebe Camargo TBM — the largest ever used in a Latin American metro project — starts excavating Thursday, Oct. 15, from Penha toward Guarulhos: the São Paulo Metro's first publicly built branch outside the capital.
Why it matters
The São Paulo Metro will start its "Hebe Camargo" tunnel boring machine on Thursday, Oct. 15, digging a roughly 5.8-kilometre tunnel from Penha toward Guarulhos — the first publicly built metro branch outside the city of São Paulo. The machine, nicknamed "tatuzão," is the largest ever used on a metro project in Latin America: about 2,600 tonnes, 11.67 metres in diameter and 133 metres long, advancing at an average of 12 metres a day and installing 3,867 concrete lining segments along the way.
A sister machine, "Cora Coralina," started on Tuesday, Oct. 13, from the opposite end, heading toward the future Guilherme Giorgi station.
Timeline and scale
The first phase builds eight stations between Vila Prudente and Penha (about 8 km), due in 2028; the second phase adds five more stations from Penha to Dutra, with the contract addendum signed Oct. 2, 2026 framing the schedule through the end of 2030. The full line is expected to be complete in 2032.
The entire Line 2-Green expansion runs more than 28 kilometres and targets 1.5 million passengers a day. The Dutra station in Guarulhos will cover 34,300 square metres at a depth of 35.45 metres, with three entrances, two platforms, 18 turnstiles and 10 elevators, handling about 86,000 passengers a day.
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