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Origin and history

Aqueduct of the Gagere, located in the commune of Chaponost in the Rhone, dates from the Gallo-Roman period. This monument corresponds to the remains of a leak tank, a key element of a hydraulic system designed to cross a valley by a siphon mechanism. Its architecture illustrates the advanced water management techniques developed by the Romans in the Lyon region, then called Lugdunum, capital of Gauls.

The remains protected since 1991 (Decree of 18 February) include structural elements classified under cadastre AT 134 and 229. The location, although specified by GPS coordinates (8 Route de la Gagere), remains of an accuracy considered satisfactory a priori (note 7/10). The site does not appear open to visit according to available data, and its current use (tourism or other) is not documented.

This type of aqueduct is part of a wider network of Roman infrastructures designed to supply water to cities and agricultural activities. In the Gallo-Roman era, the Lyon region, a strategic hub, benefited from numerous hydraulic installations to support its urban growth and public baths. The Gauger's Waterway is a local example, although its dimensions and exact layout are partially unknown.

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