Lake Robièi

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Lake Robièi
1973 aerial photo
1973 aerial photo
Location: SwitzerlandSwitzerland Switzerland
Canton of TicinoCanton of Ticino Ticino
Tributaries: various mountain streams
Drain: Robiei
Lago di Robièi (Canton Ticino)
Lake Robièi
Coordinates 682 857  /  144371 coordinates: 46 ° 26 '44 "  N , 8 ° 31' 1"  O ; CH1903:  six hundred eighty-two thousand eight hundred fifty-seven  /  144371
Data on the structure
Lock type: Gravity dam
Construction time: 1965-1967
Height above foundation level : 68 m
Height of the structure crown: 1941  m above sea level M.
Building volume: 180,000 m³
Crown length: 360 m
Crown width: 4.5 m
Base width: 50 m
Operator: Officine idroelettriche della Maggia SA
Data on the reservoir
Altitude (at congestion destination ) 1940  m above sea level M.
Water surface 23.8 ha
Reservoir length 500 m
Storage space 6.5 million m³
Total storage space : 6.7 million m³
Catchment area 1.52 km²
Design flood : 30 m³ / s

The Lago di Robièi is an equalization basin of the Maggia power plants in the north of the canton of Ticino . It has a usable volume of 6.5 million with a total volume of 6.7 million cubic meters and is located at 1940  m above sea level. M. . The nearby Lago del Zött is connected to the Lago di Robièi by a tunnel, so that the two lakes are connected to one another according to the principle of communicating vessels .

The reservoir absorbs the underwater from the Altstafel headquarters on the Valais side, which is fed into the lake through a 13 km long gravity tunnel before it is fed to the Bavona headquarters. The Robièi headquarters can also dispense processed water from Lago dei Cavagnöö , Lago Sfundau and Lago del Narèt into the lake or pump water from Lago di Robièi into the aforementioned lakes. The lake also stores the water from the Basòdino glacier , which enters the lake via Lago del Zött.

The Lago di Robièi lies at the far end of the Bavona valley , which belongs to the municipality of Cevio . From the village of Bignasco in the Maggia valley , one reaches San Carlo , the farthest hamlet in the valley, via a well-developed side street , where the valley station of the San Carlo – Robièi cable car is located about a hundred meters above the settlement , which leads to the reservoir 900 m higher. The heavy-duty cable car was built in 1972 for power plant construction and is also used for tourism during the summer months. The dam can be visited.

literature

  • David Grassi: Diga di Robièi . In: Swiss Dam Committee (ed.): Swissdams.ch . ( swissdams.ch [PDF]).

Web links

Individual evidence

  1. ^ A b David Grassi: Diga di Robièi.
  2. OFIMA system diagram. Retrieved June 10, 2020 .
  3. Information about the cable car. In: robiei.ch. Retrieved June 13, 2020 .
  4. ↑ Nature trail in the dam. robiei.ch, accessed on June 13, 2020 .