In the Barret valley, the siphon bridge spans the Garon and links Brignais to Chaponost. This bridge is part of the Roman Aqueduct of Gier, one of the four aqueducts created to supply Lyon with water. Originally, ten lead pipes stood on this bridge. Operating according to the law of communicating vessels, the siphon bridge was at the time a technical feat that required extensive knowledge in the field of hydraulics.

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Best routes to Garon siphon bridge — Roman aqueduct of the Gier

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Elevation 230 m

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Saturday 14 February

6°C

0°C

98 %

Additional weather tips

Max wind speed: 17.0 km/h

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Location: Chaponost, Rhône, Auvergne Rhône Alpes, France

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Garon siphon bridge — Roman aqueduct of the Gier

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