Émosson Dam

The Émosson Dam is a concrete barrier spanning a mountain valley in the Valais Alps, rising sharply from the valley floor. The structure incorporates a reservoir system, intake tunnels, and power generation facilities that work together to harness the Alpine water flow.

The project emerged in the 1960s as part of Switzerland's hydropower expansion and was developed through territorial agreements with France. Its completion followed years of construction work at high altitude in challenging mountain conditions.

The dam holds status as a class B Swiss cultural property, representing regional engineering excellence and contributing to Switzerland's renewable energy initiatives.

Access to the dam is provided by a cogwheel train that operates year-round and reaches dedicated viewing platforms. Sturdy footwear and weather-appropriate clothing are essential since conditions in the mountains can change quickly throughout the day.

The facility draws water from multiple glaciers across the region through an intricate network of tunnels and channels. This distributed collection system allows it to capture meltwater from different elevations and maximize power generation throughout the year.

Location: Finhaut

Elevation above the sea: 1,872 m

Part of: list of cultural properties in Finhaut, Émosson hydroelectric complex, Nant de Drance Hydropower Plant

GPS coordinates: 46.06750,6.93220

Latest update: December 10, 2025 15:54