
The Sainte-Croix dam is a hydroelectric dam. It belongs to EDF and, retaining 767 million cubic meters of water, it supplies 142 million kWh per year. Built from 1971 to 1974 where it was put put into service, it is a double curvature concrete arch dam. Created by the dam, the lake serves as a reservoir of water and this reservoir is the fourth largest in France by its surface area (about 2,200 ha). It celebrated its 40th anniversary in May 2014.