Serre-Ponçon Dam

Descriptif Court

The dam and the EDF hydroelectric power station of Serre-Ponçon : an exceptional industrial patrimony.

Descriptif détaillé

Key edifice of the development of the Durance (123m high and 650m wide at its base), it is the largest dam in Europe. Completed in 6 years with alluvial materials extracted from the bedrock in the Durance River, the structure holds 1 billion 200 million m3 of water on a surface equivalent to the Annecy Lake. The dam is made out of compacted dirt and its core is watertight clay.

It has been labeled under the patrimony of the XXth century. The hydroelectric factory dug in the rock was progressively put in service in 1960.

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