An EDF dam

This water intake collects part of the waters of the St. Bernard rivulet, which come from the melting of the Chavière glacier. Once collected, this water is sent to the Plan d´Aval reservoir several kilometres away by means of underground pipes. The construction of these tunnels required an enormous amount of work. The water stored at Plan d´Aval is then sent to the Avrieux hydrœlectric power production site.