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Photographer's Note

Alpe Gera - Lanzada - Valmalenco - Sondrio
The Alpe Gera dam, located in the municipality of Lanzada in Valmalenco, was built between 1961 and 1964. It allowed the formation of the artificial basin of the same name at an altitude of 2128 meters with a maximum reservoir of 68 million cubic meters, equal to the capacity of 63,000 Olympic swimming pools. The barrier, consisting of a massive concrete gravity dam, is 530 meters long and 174 meters high, like a 58-storey skyscraper, with a total volume of 1,700,000 cubic meters, sufficient to contain the Milan Cathedral.
It is the highest dam in Italy, among those in operation, the second ever.
The plain of Alpe Gera is an ancient glacial valley covered in large part by gravelly alluviums on a serpentine rock foundation. The sides of the tank are also made of serpentine rock which allows a good seal of the tank. The barrier section corresponds to the rocky threshold downstream of the aforementioned basin. it consists of a wavy ridge that crosses the valley and has considerable asymmetry, the right bank is considerably more steep than the left, the rock is made up of serpentine shales in view on both sides, while the valley bottom is covered by an alluvial layer and detrital.

Photo Information
  • Copyright: Silvio Sorcini (Silvio1953) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 16362 W: 130 N: 33832] (189027)
  • Genre: Lieux
  • Medium: Couleur
  • Date Taken: 2018-07-18
  • Categories: Nature
  • Exposition: f/1.1, 30 secondes
  • Versions: version originale
  • Date Submitted: 2018-08-14 0:26
Viewed: 576
Points: 42
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Additional Photos by Silvio Sorcini (Silvio1953) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 16362 W: 130 N: 33832] (189027)
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