Farrnbach
| Farrnbach | ||
 The renatured Farrnbach at the height of Mühltalstrasse |
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| Data | ||
| Water code | DE : 242312 | |
| location | Germany | |
| River system | Rhine | |
| Drain over | Regnitz → Main → Rhine → North Sea | |
| source | as Hardbächlein 49 ° 26 ′ 5 ″ N , 10 ° 42 ′ 15 ″ E |
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| Source height | approx. 388 m above sea level NN | |
| muzzle | shortly after Unterfarrnbach in Regnitz Coordinates: 49 ° 30 '3 " N , 10 ° 58' 29" E 49 ° 30 '3 " N , 10 ° 58' 29" E |
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| Mouth height | approx. 282 m above sea level NN | |
| Height difference | approx. 106 m | |
| Bottom slope | approx. 4.5 ‰ | |
| length | 23.6 km | |
| Catchment area | 57.88 km² | |
| Discharge at the Hiltmannsdorf A Eo gauge : 45.78 km² |
MQ Mq |
270 l / s 5.9 l / (s km²) |
| Big cities | Fuerth | |
| Small towns | Cadolzburg , Langenzenn , Wilhermsdorf | |
| Communities | Seukendorf | |
 The Farrnbach at flood in Unterfarrnbach, January 2011 |
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 The Farrnbach flows into the Regnitz from the left |
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The Farrnbach is a 22.6 km long, left and western tributary of the Regnitz in Bavaria . Today the Farrnbach is increasingly addressed in a masculine form ("the Farrnbach"), but historically correct - as with the Kirchfarrnbach - the female form. It is a fine material rich, carbonate low mountain range of the Keuper .
geography
The stream rises about 1.4 kilometers south-southwest of the Wilhermsdorf district of Kreben as a Hardbächlein in the area of the Entznersweiher. The Hardbächlein flows along the Hardbächleinteiche in an arc to the northeast in the direction of Kirchfarrnbach . In the south of the village comes the Untere Krebener Graben from the left; from this confluence the body of water is called Kirchfarrnbach. The (or the) Kirchfarrnbach flows in a north-easterly direction between the Dillenberg and the district road FÜ 11 past the Wittinghof to Keidenzell . In the south of Keidenzell comes the Dürrnfarrnbach from the left; from this confluence the water is called Farrnbach. It now flows in an easterly direction between the Dillenberg and the district road FÜ 16 to Hammerschmiede and flows through the Traumsee, an approximately two-hectare pond, southwest of the town. Other places on the Farrnbach are Gonnersdorf , Greimersdorf and Schwadermühle . From the Schwadermühle on, shortly before crossing under the state road St 2409 , the Farrnbach becomes a second order body of water . Southeast of the Am Farrnbach industrial park (incorrectly named masculine) the Mühlbach is diverted to the Erzleitenmühle and the Kohlersmühle . The Farrnbach crosses under the southwest bypass in an underpass between the two mills . To the west of Hiltmannsdorf , the Mühlbach flows back into the Farrnbach. The Farrnbach flows north past Hiltmannsdorf and shortly afterwards reaches the Fürth urban area. First flowing southwest of Burgfarrnbach , it crosses the place between the Church of St. John the Baptist and Burgfarrnbach Castle and then crosses under Würzburger Strasse ( Kreisstrasse FÜs 2 ) and the Nuremberg – Würzburg railway at Geißäckerstrasse . The Farrnbach now follows the Geißäckerstraße to the Main-Danube Canal . It crosses under the canal and the Hafenstrasse and reaches Unterfarrnbach ; after crossing the village, it flows between Mühltalstrasse and the Nuremberg – Bamberg railway in a north-east direction. After crossing under the FÜs 1 district road , the Farrnbach flows into the Regnitz north of the railway bridge on the railway line to Bamberg .
Like most of the western tributaries of the Regnitz, the Farrnbach has a low gradient and a low runoff as well as sand structures in the bank area and in the river bed .
environment
Water quality
The Farrnbach has water quality class II-III throughout .
Chemical-physical parameters (mean values), observation period 2000–2005:
| Measuring point | Water temperature | pH | O 2 | NH 4 - N | NO 3 - N | P tot. | Cl |
|---|---|---|---|---|---|---|---|
| above the mouth | 13.0 ° C | 8.1 | 10.1 mg / l | 0.25 mg / l | 9.0 mg / l | 0.208 mg / l | 51 mg / l |
Renaturation
Since 1997 the formerly straightened Farrnbach has been renatured again by the Nuremberg Water Management Office in the Mühltalstraße area , based on the course of the brook from 1948. This created small biotopes that provide nesting sites for birds and insects as well as spawning grounds for fish and hunting grounds for wading water birds.
fauna
In the Farrnbach there are trout , aitel and white fish . The ponds fed by the Farrnbach are stocked with pikeperch , carp , grass carp , tench , silver carp , pike , crucian carp and eel .
As part of efforts to bring the crayfish (Astacus astacus) back home in Middle Franconia, the Farrnbach in the Fürth urban area was stocked with these animals in 2005.
literature
- Johann Kaspar Bundschuh : Farrnbach . In: Geographical Statistical-Topographical Lexicon of Franconia . tape 2 : El-H . Verlag der Stettinische Buchhandlung, Ulm 1800, DNB 790364298 , OCLC 833753081 , Sp. 120-121 ( digitized version ).
- Wolfgang Wiessner: City and District of Fürth (= Historical Place Name Book of Bavaria, Middle Franconia . Volume 1 ). Commission for Bavarian State History, Munich 1963, DNB 455524629 , p. 30 .
Individual evidence
- ↑ a b Bayernviewer
- ↑ a b List of brook and river areas in Bavaria - Main river area, page 46 of the Bavarian State Office for the Environment, as of 2016 (PDF; 3.3 MB)
- ↑ Determination of the floodplain of the Farrnbach ( Memento of the original from March 26, 2017 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. , Nuremberg Water Management Office
- ^ Adolf Schwammberger: Fürth from A to Z. Neustadt an der Aisch 1968. ISBN 3-923006-33-0 . P. 116.
- ↑ Management plan for the Bavarian part of the Rhine river basin district; Appendix 1.1: Planning areas - planning units - river water bodies in the Bavarian Rhine region ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.
- ↑ a b Stocking of the dream lake by the fishing friends Langenzenn
- ↑ a b Bavarian State Office for the Environment: Summary of the reports on the 2004 inventory in Bavaria ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. : Reports to the European Commission according to Art. 5, Annex II and Annex III, as well as Art. 6, Annex IV, of the Water Framework Directive , 1st version, Augsburg, 2006, page 27
- ↑ Middle Franconia rivers, chemical-physical parameters, observation period 2000–2005 ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.
- ↑ Waters of the Fürth fishing association
- ↑ Occupation of the Wittinghof pond ( memento of the original from May 5, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. by the fishing club Cadolzburg
- ↑ Johannes Alles: Crayfish returns to the Zenn. (No longer available online.) In: Fürther Nachrichten. May 8, 2007, formerly in the original ; Retrieved June 12, 2010 . ( Page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.
Web links
- Gauge at Hiltmannsdorf, HND Bavaria