The solution was implemented on the river Vienne, an tributary of River Loire. The dam was situated after the confluence of the river with the Creuse, another major tributary. These sub-basins historically attracted salmon, shad, sea lamprey and eels. Removal of a dam (built in 1920) in the context of a long term management plan of the river Loire, to improve the continuity and to enhance fish migration potential.
Agence de l’eau Loire Bretagne + ONEMA (French National Agency for Water and Aquatic Environments)