Lac du Vieux Emosson

Lac du Vieux Emoson
Location	Valais
Coordinates	46°3′45″N 6°53′21″E / 46.06250°N 6.88917°ECoordinates: 46°3′45″N 6°53′21″E / 46.06250°N 6.88917°E
Catchment area	4.6 km²
Basin countries	Switzerland
Max. length	1.5 km
Surface area	0.55 km²
Max. depth	42 m
Water volume	13.8 Mio. m³
Surface elevation	2205 m

Lac du Vieux Emosson is a reservoir in Valais, Switzerland, in the municipality of Finhaut at an elevation of 2205 m. The lake drains into the reservoir Lac d'Emosson, 300 m below.

The arch dam Vieux Emosson was completed in 1955. Efforts to raise the dam 20 m (66 ft) began in 2013 and should be completed in the 2015. It will form the upper reservoir for the 900 MW Nant de Drance Hydropower Plant which is expected to be operational beginning in 2018.^[1]

References

1. "The Heart of the Mountain" (in French). Nant de Drance SA. Retrieved 11 January 2015.