Schozach (river)

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Schozach
The course of the river between Ilsfeld and Talheim

The course of the river between Ilsfeld and Talheim

Data
Water code DE : 23854
location Baden-Wuerttemberg
  District Heilbronn
  Heilbronn
River system Rhine
Drain over Neckar  → Rhine  → North Sea
source About 500 m northwest of the Weiler atrial the municipality Untergruppenbach on a forest area in the upper Dautenklinge
49 ° 5 '40 "  N , 9 ° 21' 1"  O
Source height approx.  306  m above sea level NN
muzzle In Heilbronn - Sontheim at house no. 32/1 on Horkheimer Strasse from the right into the Neckar Coordinates: 49 ° 7 ′ 13 ″  N , 9 ° 11 ′ 17 ″  E 49 ° 7 ′ 13 ″  N , 9 ° 11 ′ 17 ″  O
Mouth height 154  m above sea level NN
Height difference approx. 152 m
Bottom slope approx. 5.9 ‰
length 25.6 km
Catchment area approx. 93.5 km²

The Schozach [ ˈʃɔtsax ] is a right tributary of the Neckar in Baden-Württemberg . At around 26 km in length, it mainly runs through the southeast of the Heilbronn district . The medieval Schozachgau was named after the river .

course

The Schozach rises at 301  m above sea level. NN in the Dautenklinge on the western edge of the Löwensteiner Mountains , below the Untergruppenbacher district Vorhof. Then it touches the places Ober- and Unterheinriet, Abstatt , Auenstein , Ilsfeld , the place of the same name Schozach and Talheim , before moving between the Heilbronn districts of Horkheim and Sontheim at 154  m above sea level. NN flows into the Neckar. Overall, the course of the Schozach describes a large C, open to the north: it flows to Auenstein in a south-westerly direction, to shortly after Ilsfeld to the west, then to the north.

From a natural point of view, the Schozach runs through the Swabian-Franconian Forest Mountains and the Neckar Basin . From a geological point of view, it crosses the transition zone between Keuper and Muschelkalk : the source emerges in the layers of the middle Keuper , and most of the upper reaches are in the lower Keuper layers. The transition to Muschelkalk west of Ilsfeld is clearly noticeable in the change in the shape of the valley: the valley, which is still wide at Ilsfeld, narrows almost suddenly, and the river digs into a narrow valley that is up to 50 meters deep compared to the surroundings apart from Talheim no other settlement offers more space. Outcrops of the rock layers can be seen in several quarries on the edge of this valley section .

Catchment area

The catchment area of ​​the Schozach has an area of ​​93.5 km², to which the two largest tributaries, Gruppenbach am Mittellauf and Deinbach am Unterlauf, contribute 16.4 and 14.6 km². It covers most of the lowlands between the Neckar and Löwenstein Mountains. In the north are the Schweinsberg southeast of Heilbronn, the Sandberg south of Lehrensteinsfeld and another "Sandberg" southwest of Löwenstein's high points of the watershed, in the south the Wunnenstein north of Großbottwar . The Buchbach still flows to the east, but only from a point not far from the Bleichsee near Löwenstein , as the water of the Buchbach upper course is fed to the Bleichsee and thus to the Sulm in the north by means of a canal .

The main watersheds of the Schozach border against the catchment areas of Sulm in the north and northeast, the Bottwar in the south and southeast and the Neckar itself in the southwest and west. The other competitors are smaller streams to the Neckar.

The most important tributaries of the Schozach are the Gruppenbach near Auenstein and the Deinbach just before the confluence in Sontheim, both are about 7 km long.

In the catchment area, the communities Untergruppenbach, Abstatt, Ilsfeld, Talheim and Flein are wholly or largely, the communities Lauffen am Neckar , Neckarwestheim , Großbottwar , Beilstein and Löwenstein with small parts of their area.

Tributaries

Origin of the Schozach in the upper Dautenklinge in a northern forest meadow tongue near Untergruppenbach -Forhof at about 305  m above sea level. NN .

  • Bach from the Schwinglesklinge , from the right to 250  m above sea level. NN at the footbridge at the end of Oberheinriet, 2.2 km. Arises in the west of the Masselterklinge river a little east of the A 81 at about 330  m above sea level. NN .
  • Stream from the plank blade , from the right at the Unterheinriet sports field, 1.0 km. Arises in front of the eastern edge of the Grafenwald at about 270  m above sea level. NN and passes through three ponds.
  • Buchbach , from the left onto the Breitwiesen at the end of Unterheinriet at about 235  m above sea level. NN , 5.6 km. Arises in the Löwensteiner Waldgewann Buch at about 385  m above sea level. NN next to the artificial mill ditch , which here feeds the water of its upper forest blade, which continues uphill, to the Sulm .
  • Bach from the Scheidlesklinge , soon afterwards from the left opposite the Unterheinrieter industrial park, 1.2 km. Arises on the Schellenrain from several sources at about 310  m above sea level. NN .
  • Vohenlohebach , from the left below the Schozachbrücke the approach to Abstatt -Vohenlohe at 237.8  m above sea level. NN , 1.0 km.
  • Happenbach , from the right after the first road bridge in Abstatt at 234.3  m above sea level. NN , 3.9 km. Arises in the area of ​​Untergruppenbach in the northern Grafenwald a little east of the A 81 at about 325  m above sea level. NN .
  • Abstetter Bach , from the left on the western edge of Ilsfeld- Auenstein in front of the Schozach Bridge of the feeder to the Ilsfeld junction, at least 3.0 km. Arises southwest of the Abstetterhof just before the Mutton Forest or in it at least 252  m above sea level. NN .
  • Gruppenbach , after the same road bridge at 226.3  m above sea level. NN , 8.6 km. Arises in the Heilbronn city forest on the eastern slope of the Hintersberg to the Reisberg at about 355  m above sea level. NN .

After entering the Gruppenbach and crossing under the A 81, the river turns its direction of flow from southwest to west.

  • Riegelbach , canalised from the right at Ilsfelder Bad on Robert-Mayer-Strasse, 1.7 km. Arises in the Steinlesgrund at about 260  m above sea level. NN .
  • Eichenweggraben , from the left on the mountainous edge of the settlement of Ilsfeld, 1.2 km.
  • Eigersbach , from the left at the bridge of the K 2156 from Ilsfeld to the Pfahlhof, 1.6 km. Arises next to the forest path of the road at about 280  m above sea level. NN , in the local area verdolt.
  • Irrigation , from the right at the sewage treatment plant below Ilsfeld below 225  m above sea level. NN , 1.8 km. Gänser emerges on the vineyard slope at about 275  m above sea level. NN .

After the inflow of water , the river enters its narrow, meandering limestone blade at the lower reaches and turns its direction of flow from west to north-northwest.

  • Landgraben , below the Schozach Bridge from Schozach , 2.3 km. Arises as a ditch at the junction of the K 2048 to Schozach from the L 1100 at about 290  m above sea level. NN .
  • Frankelbach , from the right in the south of Talheim at 195.9  m above sea level. NN , 3.1 km. Arises in the middle thirst pool at about 265  m above sea level. NN and after a little more than halfway through the 1.3 hectare Frankelbachsee .
  • Deinbach , from the right about a hundred meters before the mouth, 7.3 km. Arises on the district of Flein east of the Kapfenhart vineyard at about 260  m above sea level. NN .

Mouth of the Schozach after 25.6 km running about 400 m below the Neckar bridge of Neckartalstraße (K 9564) at house no. 32/1 on Horkheimer Straße in Heilbronn - Sontheim at 154  m above sea level. NN from the right into the Neckar .

natural reserve

The upper reaches of the Schozach runs as far as Abstatt partially in the Swabian-Franconian Forest Nature Park . Nature reserves are not designated in the area of ​​the stream; The following areas are under landscape protection :

  • Headwaters of the Schozach ; this 18  hectare area extends from the forecourt down to the exit of the Schozach and was placed under protection in 1982.
  • Brenntenklinge - Upper Schozachtal near Oberheinriet ; the 44 hectare area on the upper reaches has been protected since 1979.
  • Schozachtal between Ilsfeld and Talheim with 112 ha since 1983.
  • Massenbach, Leinbach, Schozach and Wollenbach ; this 13 hectare area is located below Talheim and extends to the border with Heilbronn.
  • Schozachtal - Weidach - Wertwiesen from the Heilbronn city limits to the confluence with the Neckar; The 63 hectare area was placed under protection in 1983.

The 2004 water report classified the water of the Schozach and the Gruppenbach in quality class II (moderately polluted); the deinbach below Flein is classified as critically polluted (quality class II – III).

On April 4, 2019, the Schozach was poisoned by a mixture of substances over a length of several kilometers. The death of numerous fish and ducks as well as microorganisms and plants was the result. According to Talheim's mayor Rainer Gräßle, the Schozach ecosystem was destroyed for years.

traffic

The canalized Schozach in Talheim

The Schozach is not navigable due to insufficient depth and water flow.

Middle and upper Schozachtal be of the country roads traversed L 1100 and L 1102 have the above local significance limited as cross-connections in the region of Heilbronn. The lower Schozach valley is unusable as a traffic route because of its deeply incised, narrow and winding shape and is only partially accompanied by roads. However, it was once crossed by the Bottwartalbahn , which connected Marbach am Neckar with Heilbronn and followed the course of the Schozach between Auenstein and Sontheim. The route of the now disused railway line has been converted into a cycle path which, as part of the Alb-Neckar cycle path, is part of the network of Baden-Württemberg state long- distance cycle paths .

Right exactly following the northern watershed, a forest hiking trail leads partly along the route of an old Roman path and often less than 100 m south of a steep step edge from Heilbronn to Löwenstein.

See also

Individual evidence

  1. According to the contour line image on the background map of LUBW-FG10.
  2. ↑ Damming destination of the Neckar section from the lower water of the Horkheim barrage to the upper water of the lock to the Heilbronn canal port, marked in blue on the geodata viewer.
  3. LUBW-FG10 (data record entry)
  4. Sum of the sub-catchment areas according to LUBW-GEZG (data record entries).
  5. a b Entry in blue at the mouth on the background map of the LUBW-FG10 with a scale somewhat coarser than 1: 10,000.
  6. a b Entry in black at the mouth on the background map of the LUBW-FG10 with a scale somewhat coarser than 1: 10,000.
  7. Entry in blue at the mouth on the background map of the LUBW-FG10 with a scale a little coarser than 1: 10,000.
  8. State Office for the Environment, Measurements and Nature Conservation - Protected Areas Directory ( Memento of the original from October 27, 2005 in the Internet Archive ) Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.lubw.baden-wuerttemberg.de
  9. Biological water quality map 1: 350,000 of the State Institute for Environmental Protection Baden-Württemberg (PDF; 11.7 MB)
  10. Fish death after toxic pollution of the Schozach - STIMME.de. Retrieved April 4, 2019 .
  11. Cycle path on the former Bottwartalbahn with photos of the Schozach Valley

All other area and length information after measurements on a topographic map 1: 50,000.

literature

  • Topographic map 1: 25,000 Baden-Württemberg North, single-sheet cut the maps No. 6821 Heilbronn, No. 6822 Obersulm, No. 6921 Großbottwar, No. 6922 Wüstenrot

Web links

Commons : Schozach  - collection of images, videos and audio files

Geoportal Baden-Württemberg ( information ), especially with the partial maps / layers

  • "LUBW-FG10": River 1: 10,000
  • "LUBW-SG10": Standing water 1: 10,000
  • "LUBW-GEZG": water catchment areas
  • "LUBW-SCHUTZ": Various cards for the individual nature conservation categories
  • of the State Office for Geology, Raw Materials and Mining of the State of Baden-Württemberg (LGRB)
  • "LGRB-GTP": Geotope cadastre
  • "LGRB-GÜK300": Geological overview map 1: 300,000