Neirigue (river)
Neirigue | ||
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Data | ||
Water code | CH : 244 | |
location | Freiburg ; Switzerland | |
River system | Rhine | |
Drain over | Glâne → Saane → Aare → Rhine → North Sea | |
Headwaters | in the foothills of the Molasse hills between the towns of Romont (FR) and Châtel-Saint-Denis in the municipality of La Verrerie 46 ° 36 ′ 53 ″ N , 6 ° 55 ′ 55 ″ E |
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Source height | approx. 900 m above sea level M. | |
muzzle | at Autigny in the Glâne Coordinates: 46 ° 43 '53 " N , 7 ° 0' 33" E ; CH1903: 567 173 / 175 667 46 ° 43 '53 " N , 7 ° 0' 33" O |
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Mouth height | 639 m above sea level M. | |
Height difference | approx. 261 m | |
Bottom slope | approx. 12 ‰ | |
length | approx. 21 km |
The Neirigue is a 21 km long right tributary of the Glâne in the canton of Friborg in Switzerland . It drains a section of the southwest Freiburg Central Plateau and belongs to the catchment area of the Rhine . Neirigue is made up of the word components neire ( patois for noir ) and - (a) igue (old French for eau ) and thus means black water .
The headwaters of the Neirigue are located at around 900 m above sea level. M. in the foothills of the Molasse hills between the towns of Romont (FR) and Châtel-Saint-Denis in the municipality of La Verrerie . The stream flows as a small trickle to the northeast over the plateau, which was shaped by the Ice Age Rhone glacier . At Sâles the Neirigue draws an arc to the west and below Rueyres takes on the Ruisseau des Grands Marais from the left .
Now the Neirigue turns to the north and flows in a wide valley depression with a constant gradient of about 1.5% between the ridge of Berlens in the west and the range of hills of the Gibloux in the east. At the village of the same name, La Neirigue , the Mausson flows from the east . Below this village, the Neirigue flows again to the northeast through a narrow valley that opens at Massonnens . The river now moves in a flood plain up to 500 m wide and is accompanied by a forest belt. At 639 m above sea level M. the Neirigue flows into the Glâne at Autigny .
Long stretches of the Neirigue stream have been preserved in their natural or near-natural state. In the agriculturally intensively used areas, the water was straightened in sections and the embankments reinforced. The Neirigue is characterized by a pluvial runoff regime . In the past, their water power was used in various places to operate mills and sawmills.
Tributaries
- Roubattes ( right )
- Ruisseau des Grands Marais ( left )
- Ruisseau des Brêts ( left )
- Mausson ( right )
- Ruisseau de Massonnens ( right )