Averser Rhine
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Averser Rhein Averserrhein, Ragn da Ferrera |
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 Averser Rhein near Avers Cröt |
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| Data | ||
| Water code | CH : 344 | |
| location | Switzerland | |
| River system | Rhine | |
| Drain over | Hinterrhein → Rhine → North Sea | |
| source | Averser Rhein headwaters 46 ° 24 ′ 3 ″ N , 9 ° 32 ′ 56 ″ E |
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| Source height | about 2500 m above sea level M. | |
| muzzle | in the Roflaschlucht in the Lai da Seara Coordinates: 46 ° 34 ′ 58 ″ N , 9 ° 25 ′ 22 ″ E ; CH1903: 752 054 / 160982 46 ° 34 '58 " N , 9 ° 25' 22" O |
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| Mouth height | 1080 m above sea level M. | |
| Height difference | about 1420 m | |
| Bottom slope | about 71 ‰ | |
| length | 20 km | |
| Catchment area | 263.4 km² | |
| Discharge at the gauge at mouth A Eo : 261 km² |
MQ 1961-1980 Mq 1961-1980 |
11.5 m³ / s 44.1 l / (s km²) |
| Left tributaries | Mugmolbach, Jufer Rhein , Cherlibach, Madrischer Rhein , Reno di Lei | |
| Right tributaries | Planjentbach, Treiabach, Müllibach, Maleggabach, Starlerabach, Ual da Niemet | |
| Reservoirs flowed through | Innerferrera reservoir | |
| Communities | Obverse , Ferrera | |
The Averser Rhein (also Averserrhein , Romansh in the idiom Sutsilvan : Ragn da Ferrera ) is a tributary of the Hinterrhein in the canton of Graubünden .
Course and characteristics
The river is created in Avers by the confluence of the Bergalgabach stream with the somewhat smaller Jufer Rhine, which is known for having the highest permanent settlement in Europe ( Juf , near the border with the Albula district ). In a deep gorge spanned by the 90 meter high Lezibrücke , the Averser Rhein overcomes the valley step to the lower valley floor of the somewhat smaller Madrischer Rhein ( headwaters ) coming from the left . After the confluence it bears the name Ragn da Ferrera (Ferrerarhein), whereas in German usage the name Averser Rhein is retained. Also from the left flows a few kilometers below the Reno di Lei ( headwaters ), which flows almost entirely on Italian territory, with a large dam built on Swiss territory , which forms the Lago di Lei .
The following Val Ferrera has two populated valley expansions. In the upper one, it has been dammed at Innerferrera ( Calantgil ) since 1961. Below Ausserferrera ( Farera ) high cliffs accompany the trough valley . The Avers Rhine then flows into the Roflaschlucht gorge above Andeer in the Hinterrhein dammed up to the Lai da Seara , which it exceeds by about 3% with its water flow of 11.5 m³ / s.
The valley of the Averser Rhine is only accessible by branch roads.
Tributaries
- from the left:
- Bergalga (main source of the Avers Rhine)
- Madrischer Rhein (Romansh: Aegua da Madris)
- Reno di Lei *) outflow from Lake Lei
- Ual da Niemet
- from the right:
- Jufer Rhine
- Jupperbach *)
- Bacherbach *)
- Maleggabach *)
- Ava da Starlera
- Ava da Mulegn
- Ouch granda
The water of the tributaries marked with *), like the water of the Avers Rhine itself, is used by the Hinterrhein power plants to generate electricity. The water intake of the Averser Rhein is at Juppa. The collected water passes through a more than five-kilometer-long tunnel under the Tscheischhorn into the Preda catchment basin in Madris , from where it is again directed through a five-kilometer-long tunnel into the Lago di Lei.
Web links
Individual evidence
- ↑ Geoserver of the Swiss Federal Administration ( information )
- ^ Charles Knapp, Maurice Borel, Victor Attinger, Heinrich Brunner, Société neuchâteloise de geographie (editor): Geographical Lexicon of Switzerland . Volume 1: Aa - Emmengruppe . Verlag Gebrüder Attinger, Neuenburg 1902, p. 113 f., Keyword Averser Bach or Averser Rhein ( scan of the lexicon page ).
- ↑ Modeled mean annual discharge. In: Topographical catchment areas of Swiss waters: sub-catchment areas 2 km². Retrieved August 26, 2017 .
- ↑ a b Hydrological Atlas of Switzerland of the Federal Office for the Environment FOEN, Table_54
- ↑ a b National map of Switzerland 1: 25000