Schäflibach

from Wikipedia, the free encyclopedia
Schäflibach
Chräbsbach, Chrebsbach, Stockacherbach
Schäflibach, here still called Chräbsbach, in the Rameren forest area between Uitikon (left) and Birmensdorf (right)

Schäflibach, here still called Chräbsbach, in the Rameren forest area between Uitikon (left) and Birmensdorf (right)

Data
Water code CH : 2816
location Switzerland
River system Rhine
Drain over Limmat  → Aare  → Rhine  → North Sea
source in the Rameren forest near Uitikon
47 ° 21 ′ 46 ″  N , 8 ° 27 ′ 16 ″  E
Source height 543  m above sea level M.
muzzle in Dietikon in the Limmat Coordinates: 47 ° 24 '1 "  N , 8 ° 24' 45"  E ; CH1903:  673 517  /  250393 47 ° 24 '1 "  N , 8 ° 24' 45"  O
Mouth height 385  m above sea level M.
Height difference 158 m
Bottom slope 25 ‰
length 6.3 km
Catchment area 10.02 km²
Discharge at the Dietikon
A Eo gauge : 10.02 km²
Location: 260 m above the mouth 		MQ
Mq
 		200 l / s
20 l / (s km²)
Left tributaries Allmendbach , Bachtobelgraben
Communities Uitikon , Birmensdorf , Urdorf , Dietikon

The Schäflibach (in the upper reaches of Chräbsbach and Stockacherbach ) is a 6.3 km long tributary to the left of the Limmat in the Dietikon district of the Swiss canton of Zurich . It flows through the Urdorfertal between Reppischtal and Limmattal in the west of the canton and drains an area of ​​around 10 square kilometers.

Older known names are Rommerbach , Römerenbach , Römerbächlein and Scheffelbach . On older maps, the upper reaches are called Krebsbach and Stockächerbach .

geography

course

Schäflibach in Urdorf with tank wall

The stream rises as Chräbsbach at 543  m above sea level. M. just inside the Rameren forest area and just outside the WSL site in the municipality of Uitikon . It initially flows to the northwest and after around 40 meters takes on the Grossmattbach, which is longer here, from the right and, after another 60 meters, the Sürenloobach, which also joins on the right .

After its confluence, it flows to west-northwest and forms the northern edge of the forest of the Rameren . It runs for less than 10 meters in the community of Birmensdorf, and again crosses under a nameless path in Uitikon, after which it is accompanied on the right by a dirt road. It passes a small pond that lies within the forest and shortly afterwards takes in the village stream coming from Uitikon from the right near Chilenstud . It is bridged by Zürcherstrasse , after which it marks the municipal boundary between Uitikon and Birmensdorf. At the same time, it now forms a small ravine that extends just inside the Rameren and flows in several arches to the west.

At Leerbreiti it leaves the forest area on its northwestern border and runs again to the northwest. It is initially accompanied by a narrow, dense forest, which after an arc to the southwest and passing a pond turns into narrow but dense trees. After a larger curve to the north, there is another narrow forest. In this the stream turns to the west-northwest and shortly afterwards reaches the Iltismoos retention basin . Here it crosses a small pond, which is enclosed by the forest, and takes in the water of the Chalchtarenbach coming from the right .

The Chräbsbach passes under the embankment of the Zurich – Zug railway line , which serves as a dam, and is now called the Stockacherbach. The brook flows here to the north-northwest, where it is again lined with a narrow forest and on the right bank near Stockächer passes a family garden area and the tennis courts of the Weihermatt tennis club . Here it curves to the west and continues to flow to the northwest. Immediately afterwards, he passes the Urdorf artificial ice rink on the right side of the stream as well as the outdoor swimming pool and the Weihermatt sports field . It reaches the Wüestmatt , where it takes its most important tributary from the left with the Allmendbach .

It turns briefly to the north and directly again to the north-northwest and after around 80 meters reaches the settlement area of Oberurdorf . It crosses a path and the Bachstrasse , which follows the brook on the right. It crosses under Mühlegasse , Ankerstrasse and again Bachstrasse at the intersection with Kirchgasse . The road now follows the brook on the left and the Obermattbach flows from the left , which is overturned along its entire course and comes from the Im Spitzler road . After its confluence, the stream is called Schäflibach.

The Schäflibach overturns under the Birmensdorferstrasse and after about 125 meters comes to the surface again on the left side of the street and opposite the post office. It follows the road to the north-northwest and at the same time forms the western boundary of Urdorf. On the left bank, a field path accompanies the stream, which is lined with loose trees. Another family garden area follows on the left bank before the Schäflibach reaches Niederurdorf . Here he is overturned for 60 meters at the same time, whereby he also crosses under the Dorfstrasse . After the brook comes to the surface again, it directly forms the western border of the Urdorf industrial area on its now northwestern course. Shortly thereafter, he turns to the north and increases from left to the forest area Honeret herkommenden Bachtobel ditch on.

The stream changes its direction again to north-northwest and passes under the A3 , under which the dolten Bröggenbach ( Chesslerbach ) flows from the right . There is an open section between the motorway and the motorway exit before it also crosses under it. After a more open section, you will pass under Bernstrasse , after which the Schäflibach forms the municipal boundary between Urdorf and Dietikon. Accompanied by a narrow wood, it flows slightly deeper to the northwest, before it turns to the north-northwest at the family gardens in Vogelau and now runs entirely through Dietikon. He crosses the Vogelaustrasse and takes a small bow to the west, according to the left of Vogelaubach opens. It then flows mainly northwards, passing under Schöneggstrasse and Zürcherstrasse as well as the Zurich – Baden railway line , before finally reaching 385  m above sea level. M. coming from the left and south into the Limmat.

A few meters before the Limmat, the Schäflibach flows under the 4.7 meter long Schäflibach Bridge. The oldest railway bridge ( Spanish-Brötli-Bahn ) in Switzerland was put into operation on August 9, 1847.

Catchment area

The catchment area of ​​the Schäflibach measures 10.02 km², of which 39.1% is agricultural area, 32% wooded area , 28.6% settlement area, 0.2% water area and 0.1% unproductive area .

The highest point of the catchment area is 706  m above sea level. M. directly below the Büels ( 707  m above sea level ) and above Ringlikon , the average height is 503  m above sea level. M. It extends mainly over the municipalities of Uitikon, Urdorf and Dietikon, the municipalities of Birmensdorf , Schlieren and Zurich near Chlibrand have a smaller share .

In the south and west is the catchment area of ​​the Reppisch and in the east that of the Albisried Dorfbach and the Mülibach , all of which also drain directly into the Limmat.

Tributaries

environment

The Schäflibach flows through two supra -municipal nature reserves, namely the dry, wet and forest locations of the railway embankment Guet-Chlihäuli, Tislimatt, Iltismoos and the ruderal location Boll-Stockmatt . In the catchment area, there are still the nature reserves forest location Chleibersmättli , light forest edge Foren-Girhalden-Hegi , ruderal location Mören-Hegi and wet location Ristormatt-Tisliboll . In addition, the sandstone outcrops on the western slope of the Buechhogers near Rütenen above Uitikon are entered in the geological-geomorphological inventory .

flora

The entire section in Rameren is in woodruff - beech forest with lungwort and forest ziest . The narrow woods along the stream at Leerbreiti and Chlihäuli are occupied by sedges - Bacheschenwald with giant horsetail . At Vogelau on the municipal boundary there is another short section of Waldmeister-Buchenwald. Most of the forests adjacent to the Schäflibach are privately owned and are located in the Limmattal-Süd forest district .

fauna

Two neozoa have been detected at the mouth in Dietikon, namely the New Zealand dwarf snail and the pointed bladder snail . However, these occurrences are classified as unproblematic.

Web links

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

Individual evidence

  1. ↑ a b c d e f Geographic information system of the Canton of Zurich
  2. ↑ a b Topographical catchment areas of Swiss waters: sub-catchment areas 2 km². Retrieved September 24, 2017 .
  3. ↑ Schäflibach Dietikon. (PDF) Position 424: monthly samples. In: Office for Waste, Water, Energy and Air, Department of Water Protection. Retrieved September 24, 2017 .
  4. ↑ G. Braun: Journal for the History of the Upper Rhine, Volume 5 . Landesarchiv Karlsruhe, 1854, p. 512 ( Rommerbach on p. 98 in the Google book search).
  5. ↑ Lüchinger-Grob, Elisabeth. Urdorf in old views, 2002. ISBN 978-90-288-6701-7
  6. ^ The legal sources of the canton of Zurich, first part. (PDF) In: Collection of Swiss legal sources. Retrieved September 24, 2017 .
  7. ↑ C. Detloff: Journal for Swiss Law, Volume Eighteenth . Bahnmaier's Verlag, 1878, p. 149 ( Scheffelbach on p. 47 in the Google book search).
  8. ↑ Geoserver of the Swiss Federal Administration ( information )