Bied (Les Ponts-de-Martel)

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Bied
Grand Bied
The Bied in the Vallée des Ponts

The Bied in the Vallée des Ponts

Data
Water code CH : 3204
location Canton of Neuchâtel , Switzerland
River system Bied
River basin district Rhine
source at Rochers Bruns near Alp La Charbonnière
47 ° 2 ′ 3 ″  N , 6 ° 49 ′ 23 ″  E
Source height approx.  1255  m above sea level M.
Infiltration at Le Voisinage a little southwest of Les Ponts-de-Martel Coordinates: 46 ° 59 ′ 35 ″  N , 6 ° 43 ′ 30 ″  E ; CH1903:  545710  /  204900 46 ° 59 '35 "  N , 6 ° 43' 30"  O
Mouth height 983  m above sea level M.
Height difference approx. 272 ​​m
Bottom slope approx. 23 ‰
length 12 km
Catchment area 55.8 km²
Discharge at the estuary
A Eo gauge : 55.8 km² 		MQ
Mq
 		1.76 m³ / s
31.5 l / (s km²)

The Bied , also known as the Grand Bied , is a twelve kilometer long river in the Vallée des Ponts in the canton of Neuchâtel in Switzerland .

geography

course

Doline in which the Bied seeps away

The Bied rises southeast of La Sagne in a narrow erosion valley at up to 1430  m above sea level. M. high Rochers Bruns at Alp La Charbonnière , where it already equal to the Les Quignets will flow. The Bied runs through the lower part of the Vallée des Ponts - today largely corrected and straightened - in a south-westerly direction. At Les Ponts-de-Martel , the stream bed is largely natural with numerous meanders . South of the village it takes up the Ruisseau des Bieds from the opposite direction , and from its confluence changes its direction of flow abruptly to the northwest. One and a half kilometers later, the stream disappears completely into a sinkhole .

The seepage water reappears about four kilometers south and about 270 meters below in the village of Noiraigue in the Source de la Noiraigue and flows into the Areuse after only about 700 meters .

Tributaries

  • Les Quignets (right)
  • Ruisseau des Bieds (left)

Web links

Commons : Bied (La Sagne)  - Collection of images, videos and audio files

Individual evidence

  1. ↑ a b Geoserver of the Swiss Federal Administration ( information )
  2. ↑ Google Earth
  3. ↑ a b Modeled mean annual discharge. In: Topographical catchment areas of Swiss waters: sub-catchment areas 2 km². Retrieved August 12, 2017 .