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Medieval walls preserved in Milan metro station extension
03 March 2025
Italy-based construction contractor Webuild has completed an extension of Milan鈥檚 Sant鈥橝mbrogio metro station, revealing and preserving medieval-era walls as part of the finished project.

The extension 鈥� part of the broader 鈧�1.7 billion (US$1.76) Milan Metro Line 4 project 鈥� aims to provide a more 鈥渄irect and convenient鈥� transfer between the city鈥檚 M4 and M2 metro lines, Webuild said.
As part of the works, a 70m-long station tunnel corridor was built, featuring a 50m虏 walkable glass display case that showcases the archaeological find.

The ancient walls, measuring 35m in length, are believed to have been part of a supporting structure for the Naviglio San Gerolamo canal.
Webuild stated, 鈥淭he design solution, specifically developed to preserve and highlight the discovered structures, allows passengers to walk along the very 鈥榖ed鈥� of the medieval canal.
鈥淔lanked by the original containment wall made of Lombard 鈥榗eppo鈥� stone and structures once connected to the Pusterla di Sant鈥橝mbrogio, the corridor offers a unique journey through history.鈥�
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