Grotta di Cocceio, Roman tunnel in Pozzuoli, Italy.
The Cocceio Tunnel extends for one kilometer through volcanic rock, featuring a trapezoidal cross-section and six ventilation shafts along its length.
Under Marcus Vipsanius Agrippa's command in 37 BC, engineer Lucius Cocceius Auctus designed this passage to connect Cumae with Lake Avernus for military purposes.
Ancient Roman writers documented the tunnel's construction as an example of Roman engineering excellence in transforming natural landscapes for strategic objectives.
The tunnel's width allowed two carts to pass simultaneously, while nine vertical shafts provided ventilation and natural light throughout the underground passage.
This structure represents the first major road tunnel in world history, incorporating an underground aqueduct that supplied water to the nearby port.
Location: Pozzuoli
GPS coordinates: 40.84011,14.07058
Latest update: March 6, 2025 08:44
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