ABSTRACT
The entire southern side of the ridge bounded by the Orco and Piantonetto Rivers, in the Province of Turin, has been undergoing a slow process of deep-seated gravitational slope deformation (DSGSD). This deformation process, a vast landslide movement, is historically known as the “Rosone landslide” because it frequently involved the small village of Rosone located at the toe of the slope. At present, this phenomenon also involves the 99 MWh hydroelectric power plant of the Electricity Agency (AEM) of the city of Turin (Fig. 5.1). Coming from the Ceresole Reale dam, the water reaches the AEM facilities through a 17 km long pipe after spanning the entire length of the gravitational deformation, where it falls towards the power plant via a penstock with a drop of 813 m. At the toe of the slope, the only National Road (No. 460) from Turin to Ceresole Reale is located.
