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Artificial basin in Val Genova The artificial lake of Val Genova is a large calm basin that collects the waters that flow from Val Genova and those brought by the…

Artificial basin in Val Genova
The artificial lake of Val Genova is a large calm basin that collects the waters that flow from Val Genova and those brought by the gutter channel coming from the south. The water is then taken into the tunnel for Molveno where it is collected and then used for hydroelectric purposes.

“The aim of the project was to collect all the available waters of the Sarca basin, from Val di Breguzzo to Passo Campo Carlo Magno and from here to Andalo and the result is amazing because, despite problems which seemed insurmountable, it can be said that the water that today is not collected is very little. The incredible project was to also use, bringing it to lake Molveno, the water of the Upper Arnò basin that descends into Val di Breguzzo and that of the Fiana stream in Val Gaverdina. The Collini Company of Pinzolo built a dam upstream of the Pont Arnò site, just above the confluence.
The gutter on the right Sarca, with the exception of the short section on the canal bridge in Val di Borzago, was built entirely in the tunnel with trapezoidal or polycentric sections (horseshoe shaped) depending on the nature of the rocks crossed. It was growing in size as the flow increased due to the interception of water courses and measured a total of 18.4 km, with an average gradient of 2.6. It began at the “La Rocca” hydroelectric power station at an altitude of 945 masl. After having received derivations from the Maftina, Finale, Bedù di Vigo, Bedù di Pelugo, Vogogna and Orbo minor streams along the route, it ended in the Val Genova basin at an altitude of 896 masl”

In simple terms, the basin collected the waters of the Val di Genova basin and those brought by the gutter from the south. Then, through a siphon that passed underneath the Sarca riverbed, they were poured into the following section of the tunnel that from the siphon outlet headed toward Pinzolo”.

Passage taken from: “L’epopea dei grandi lavori idroelettrici in Giudicarie nell’archivio fotografico di Dante Ongari” edited by Ennio Lappi

 

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