Giessbach (Weidgraben)

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Gießbach
Giesgraben, Gießgraben, Alte Bach, Alte Pfinz, Die Gieß
Contactor at the junction of the excavation

Contactor at the junction of the excavation

Data
Water code DE : 237562224
location Hard levels

Baden-Württemberg

River system Rhine
Drain over Weidgraben  → Weingarten Relief Canal  → Pfinz  → Rhine  → North Sea
Branch from the Pfinz at the Hühnerlochwehr in Karlsruhe- Grötzingen
49 ° 0 ′ 27 ″  N , 8 ° 29 ′ 26 ″  E
Source height approx.  120  m above sea level NHN
muzzle from the right in the Weidgraben Coordinates: 49 ° 2 ′ 38 ″  N , 8 ° 29 ′ 29 ″  E 49 ° 2 ′ 38 ″  N , 8 ° 29 ′ 29 ″  E
Mouth height approx.  113  m above sea level NHN
Height difference approx. 7 m
Bottom slope approx. 1.4 ‰
length approx. 4.9 km
Drain MQ
 38 l / s

The Gießbach (also the Gießbach, other names: Giesgraben , Gießgraben , Alte Bach , Alte Pfinz and Die Gieſs ) is a tributary of the Pfinz , which branches off in the Karlsruhe district of Grötzingen . It leaves the alluvial cone , which the Pfinz formed when it entered the Upper Rhine Plain, towards the north, enters the Kinzig-Murg Gully and flows into the Weidgraben after just under five kilometers .

The name Gießbach is linguistically related to the hydronym Giessen and is interpreted as "rapidly flowing [r], falling [r] brook".

course

The Gießbach is separated at the Hühnerloch weir west of the center of Grötzingen. With an average discharge of around two cubic meters per second at the Pfinzpegel in Berghausen , the Pfinz flowing to Durlach receives up to five cubic meters, the Gießbach around 38 liters per second. Higher runoffs reach the Rhine via the Pfinz relief canal .

The Gießbach initially follows the Pfinz relief canal to the west. After around 500 meters, the stream bends north. Here the Beungraben branches off , today a dry ditch in the upper reaches, which continues to follow the relief channel and also flows into the Weidgraben. The Gießbach initially meanders through an area with many gardens; fields dominate from the street Am Viehweg . After crossing under the Heidelberg – Karlsruhe railway line , the stream runs east of the Aussiedlerhöfe Im Brühl and shortly before its confluence reaches the nature reserve Weingartener Moor-Bruchwald Grötzingen .

Since the Pfinz-Saalbach correction carried out between 1934 and 1962 , the Weidgraben has served as a receiving water for the Gießbach. The Weidgraben, a drainage ditch that runs east of the Federal Motorway 5 , flows to the Weingartener relief canal, which flows east of Stutensee - Blankenloch into the Pfinz , referred to here as the Pfinzkorrektion . A part of the Pfinz, also known as the Old Pfinz , branches off from the Pfinz correction at Neuthard and flows into the Rhine via the Rhine Lower Canal near Philippsburg . Another drainage option is from Neuthard via the continuation of the Pfinz correction to the Saalbach Canal , which flows into the Rhine above the Elisabethenwörth island .

Before the Pfinz-Saalbach correction, the Gießbach flowed around 4.5 kilometers further north and flowed into the Pfinz from the right at the Hundszipfen northeast of Blankenloch. At that time, the Heglach branched off from the Pfinz just above the confluence . In this section, several ditches flowed towards the Gießbach from the right, which drained today's nature reserve Weingartener Moor-Bruchwald Grötzingen , including the Werrenhäuslesgraben . At Kreuzlachallee east of Blankenloch, the re-throw ditch , the common lower reaches of the Beungraben and Weidgraben , flows from the left . In the course of the Pfinz-Saalbach correction, the Pfinz overpass was built which crosses the course of the Gießbach. Part of the Gießbach was connected to the Pfinz overpass. This part is still shown in the official digital water management network as flowing water with its own water code number; According to a biotope mapping , it is mostly dry. In this section the Gießbach forms the border between Karlsruhe and the municipality of Weingarten (Baden) and at the same time the border between the landscape protection areas Füllbruch-Vokkenau and the broken forest area of ​​the old Kinzig-Murg-Rinne . To the north of Kreuzlachallee, channels and dams of the Giessbach are largely preserved. Except when the groundwater levels are high, the Gießbach lies dry here.

history

The Gießbach is probably an old course of the Pfinz. Although there is no documentary evidence, it is assumed that the Pfinz was derived from the town of Durlach in the late Middle Ages in order to drive mills there and to fill the moat in front of the city wall.

The existence of a dividing weir in Grötzingen is documented for the year 1556. This year a wooden structure was replaced by a stone structure. The weir was owned by the city of Durlach, which also had the keys to operate it. From the point of view of Grötzingen, sufficient exposure of the Gießbach was important, as the stream ran through the Grötzinger Wiesental, which was about four kilometers north of the village in the Kinzig-Murg-Rinne and was initially used as pasture, later as irrigated meadows . The Gießbach also served as a flood relief and absorbed the water from the Pfinz when the stream fell every year . The division of the water was regulated in the Pfinzordnung in 1563. After several renovations and alterations which consisted chicken hole sluice from 1855 of a parking event and a fixed weir . The Hühnerlochschleuse was a good 200 meters east of today's Hühnerloch weir , which was built in the course of the Pfinz-Saalbach correction. A replica of the trap and two original stone pillars of the Hühnerlochschleuse are integrated into the green area at Grötzinger Grezzoplatz.

Up until the end of the Second World War, the Gießbach was used as an irrigation ditch to water meadows. The Pfinz-Saalbach correction resulted in a lowering of the groundwater level , which enabled the meadows to be converted into fields. After the meadow irrigation ended, the stream was redesigned as a drainage ditch . The trees on the bank were felled and the dams leveled to facilitate mechanical maintenance. The increased incidence of light led to a strong growth of reeds , which delayed the runoff and promoted the sedimentation of mud. From the 1980s on, the Gießbach was redesigned to be natural with changing cross -sections and a wooded border was created for shade.

Web links

Individual evidence

LUBW

Official online waterway map with a suitable section and the layers used here: Map of the Giessbach
General introduction without default settings and layers: State Institute for the Environment Baden-Württemberg (LUBW) ( notes )

  1. ↑ a b Height according to the contour line image on the topographic map background layer or the digital terrain model of the online map.
  2. ↑ Length according to the waterway network layer ( AWGN ) .
  3. ↑ Survey form Biotope plant location Gießbach - Boddichwald , biotope number 269162125279 of the forest biotope mapping Baden-Württemberg. Accessible via the layer Biotopes according to NatSchG and LWaldG .
  4. ↑ Protected areas according to the relevant layers, nature partly according to the biotope layer .
  5. ↑ Excerpt from a relief representation of the online map at Kreuzlachallee. From here the old brook dam runs west of the Pfinzkorrektion to the north.

Other evidence

  1. ↑ Josef Schmithüsen : Geographical land survey: The natural space units on sheet 161 Karlsruhe. Federal Institute for Regional Studies, Bad Godesberg 1952. →  Online map (PDF; 5.1 MB)
  2. ↑ a b Note on HQ, MQ and NQ longitudinal sections of the Upper Rhine tributaries with flood channel regulations. In: Institute for Water and Water Development - Hydrology Division, Karlsruhe Institute of Technology ; State Institute for the Environment, Measurements and Nature Conservation Baden-Württemberg (edit.): Abfluss-BW. Regionalized discharge parameters for Baden-Württemberg. As of October 2015, pp. 2-3 - 2-15, here pp. 2-12 ( online as PDF, 10.2 MB).
  3. ^ A b Wilhelm Mössinger: Grötzingen. Municipal administration Grötzingen, Grötzingen 1965, p. 105.
  4. ↑ Günther Malisius: Die Pfinz: Once a lifeline, now local recreation and repeatedly corrected . (= Contributions to the history of Durlach and the Pfinzgau , Volume 5). Freundeskreis Pfinzgaumuseum, Historical Association Durlach eV (Ed.). Verlag Regionalkultur, Ubstadt-Weiher 2011, ISBN 978-3-89735-681-8 , p. 54.
  5. ↑ Topographisches Bureau Baden (ed.), W. Winckens (arr.): Topographical map over the Grand Duchy of Baden. According to the general land survey of the Grand Ducal Military Topographical Bureau. Sheet 16, Karlsruhe. Karlsruhe 1840 ( online ).
  6. ↑ Ernst Schneider: The Karlsruhe natural landscape as reflected in the field names. In: Zeitschrift für die Geschichte des Oberrheins 108 (1960), ISSN  0044-2607 , pp. 134-184, here p. 139 f.
  7. ↑ Berghausen / Pfinz gauge at the Baden-Württemberg flood forecasting center (accessed on August 27, 2019).
  8. ↑ Malisius, Pfinz , p. 55;
    Geological State Office Baden-Württemberg: Geological map of Baden-Württemberg, Federal Republic of Germany. Sheet 6916, Karlsruhe-Nord. Scale 1: 25,000. Landesvermessungsamt Baden-Württemberg, Stuttgart 1985. (= Unchanged reprint of: Special geological map of the Grand Duchy of Baden. Sheet 51, Karlsruhe. Geological survey by Hans Thürach , completed in 1909);
    Topographic atlas of the Grand Duchy of Baden. Sheet 51, Carlsruhe. Giesecke & Devrient, Leipzig 1876 ( online ).
  9. ↑ Stutensee Nature Experience Trail, Lochenwald information board (as of December 20, 2015).
  10. ↑ Olivia Hochstrasser: From the Staufer Foundation to the Residence. In: Susanne Asche, Olivia Hochstrasser: Durlach. Staufer foundation, princely residence, citizen town. (= Publications of the Karlsruhe City Archives , Volume 17) Badenia, Karlsruhe 1996, ISBN 3-7617-0322-8 , pp. 15–146, here p. 70.
    Malisius, Pfinz , p. 31;
    Hans Knab, Simone Diet: The Hühnerlochschleuse (historical tour of Grötzingen, station 37).
  11. ↑ Mössinger, Grötzingen , pp. 104 f, 227;
    Malisius, Pfinz , p. 53 f;
    Hans Knab, Simone Diet: The Hühnerlochschleuse (historical tour of Grötzingen, station 37).
  12. ^ Thomas Breunig: Nature guide Karlsruhe. Published by the State Institute for the Environment, Measurements and Nature Conservation Baden-Württemberg , Verlag Regionalkultur, Ubstadt-Weiher 2006, ISBN 978-3-89735-424-1 , p. 171 f.