Twannbach

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Twannbach
La Douanne
Bach with the Twannbach Bridge

Bach with the Twannbach Bridge

Data
Water code CH : 3201
location law

Switzerland

River system Rhine
Drain over Aare  → Rhine  → North Sea
source north of Châtillon
47 ° 6 ′ 7 ″  N , 7 ° 5 ′ 58 ″  E
Source height 805  m above sea level M.
muzzle at Kleintwann in the Bielersee Coordinates: 47 ° 5 '30 "  N , 7 ° 9' 14"  E ; CH1903:  578 384  /  215 654 47 ° 5 '30 "  N , 7 ° 9' 14"  O
Mouth height 429  m above sea level M.
Height difference 376 m
Bottom slope 63 ‰
length 6 km
Catchment area 18.8 km²
Discharge
A Eo : 18.8 km²
at the mouth
MQ
Mq
620 l / s
33 l / (s km²)

The Twannbach , also called La Douanne , is a 6 kilometer long stream in the Bernese Jura .

geography

course

The Twannbach rises on the Montagne de Diesse , north of the hamlet of Châtillon belonging to the Plateau de Diesse , at an altitude of about 806 m. It flows first in a northeasterly direction. At Sur les Moulins, a hamlet of Plateau de Diesse, he makes an arc and turns his direction south. It digs its way through the narrow Twannbach Gorge and finally flows into Lake Biel at Twann , in the Kleintwann district.

Tributaries

  • Ruisseau les Moulins ( left )

Web links

Commons : Twannbach  - Collection of images, videos and audio files

Individual evidence

  1. a b water network in WebGis geographic information system of Berne
  2. a b Geoserver of the Swiss Federal Administration ( information )
  3. Modeled mean annual discharge. In: Topographical catchment areas of Swiss waters: area outlets. Retrieved November 3, 2015 .