The St Clair water plant, located in Caluire on the right bank of the Rhône, originally formed a large complex, of which the following also remain the 2 filtering basins and a suction gallery
Surface: 1600 m² and 2200 m²
Construction: vaults on pillars.
The vaults are made of cast concrete, one of the first times this technique has been used on such a large scale.