Lake Gurzia
The Lake Gurzia is an artificial lake basin created by the damming of the Chiusella stream just downstream of its confluence with its main tributary, the Savenca.
It is located at 432 m altitude between the municipalities of Vidracco and Vistrorio, both in the Metropolitan City of Turin.
Morphology
The reservoir has a roughly rhomboidal shape with the longer diagonal oriented southwest/northeast. On the right bank, it is overlooked by the municipal center of Vidracco, which stretches parallel to the water body at around 470 m elevation; the opposite shore is flanked for almost its entire length by the SP 64 road of Valchiusella. The basin's shores are mostly wooded and quite steep, except in the uppermost area.Dam
The structure of the current dam dates back to 1922; it is a simple arch dam 50 meters high, leased to Enel Produzione for hydroelectric use. The impounded volume is 1.26 million cubic meters. The dam has foundations resting on a substrate formed by a Pleistocene moraine belonging to the Ivrea Morainic Amphitheatre.An underground pipeline feeds the downstream hydroelectric plant of Ponte Preti, located in the municipality of Strambinello. The plant has two generating units with a power output of 6.2 MW and utilizes a water flow of with a drop of. The plant is one of the oldest in Italy, with construction beginning in 1888.