Lago Bianco (literally "White Lake" in Italian) is a reservoir at the Bernina Pass in the Swiss canton of Graubünden.

[1] The Lago Bianco reservoir was created between 1910 and 1911 in order to provide a constant supply of water to a series of hydro-electric power plants in the Val Poschiavo.

This would involve creating a 18.1 kilometres (11.2 mi) long tunnel high along the western side of the Val di Poschiavo, followed by 2.4 kilometres (1.5 mi) long shaft to an underground power plant on the banks of the Lago di Poschiavo.

The scheme would involve raising the dams at either end of Lago Bianco by 4.35 metres (14.3 ft).

The proposals have received formal consent from the cantonal authorities, but as of 2016[update] are not believed to be financially viable.