Banzengraben

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Banzengraben
Banzenbach
Data
Water code DE : 2388116
location Foreland of the eastern Swabian Alb

Baden-Württemberg

River system Rhine
Drain over Jagst  → Neckar  → Rhine  → North Sea
source south of the Hornsberg on the edge of the bird field to the fire wood
48 ° 54 ′ 5 ″  N , 10 ° 13 ′ 17 ″  E
Source height approx.  518  m above sea level NHN
muzzle near the Banzenmühle in Lauchheim from the right and north in the upper Jagst coordinates: 48 ° 52 '33 "  N , 10 ° 13' 40"  E 48 ° 52 '33 "  N , 10 ° 13' 40"  E
Mouth height approx.  476  m above sea level NHN
Height difference approx. 42 m
Bottom slope approx. 12 ‰
length 3.5 km
Catchment area 3,952 km²

The Banzengraben is a 3.5 km long creek in the Ostalbkreis in eastern Baden-Württemberg , which flows approximately southwards near the Banzenmühle in the small town of Lauchheim from the right into the upper Jagst .

geography

course

The Banzengraben is created at the southern foot of the Hornsberg ( 587.2  m above sea level ) beyond the open bird field in the edge of the forest of the fire wood at about 518  m above sea level. NHN close to the border between the municipality of Westhausen and the city of Lauchheim . The stream initially flows south-east at the edge of the forest and, after less than half a kilometer, receives an inflow from the north-east from a second source branch, which also follows the edge of the forest. In the same direction it crosses the forest, which is only about 200 meters wide, in a damp alder lowland. On its other side, now straightened and without trees or bushes on the bank, it runs through the meadows between the Westhausener Höfe Beerhalden and Hundslohe on the left and the Lauchheimer Hof Mohrenstetten on the right. It touches a small forest island on the Mohrenstettener side, after which from near the settlement a meadow brook about 0.8 km long at about 498.5  m above sea level. NHN is approaching.

After this longest tributary of the Banzengraben, which flows after almost a third of the course, it turns to the southern course through the area of ​​the city of Lauchheim. On the banks of the accompanying meadows, in addition to the still straight course, there are now sometimes trees and bushes and a few other tributaries less than half a kilometer in length feed the stream more or less constantly, which are often closer to the edge or in the now mainly left it begins with the approaching hillside forests. Remains of a pierced dam can be seen in the valley floor between the single farm Schönberg on a mountain spur in a right corridor from the brook and the hamlet of Hettelsberg above the left slope, which is covered by the hillside forest. Further down, the brook bypasses another old dam and then takes up the runoff of a chain of ponds with a total area of ​​0.8 hectares, which is located on the southern edge of the Schönberger Flurbucht. After this, the forest on the right also breaks out over the slopes, while the Pfaffenlohe hillside forest, which extends to the bank on the left, continues almost to the Banzenmühle. At this point, the stream crosses under the first and only public road Lauchheim – Westerhofen, emerges into the floodplain and then flows into an acute angle at around 476  m above sea level. NHN into the upper Jagst, which flows roughly westwards here .

The Banzengraben is 3.5 km long, flows about 42 meters below its origin and thus has a mean bed gradient of around 12 ‰.

Catchment area

The 4.0 km² catchment area of ​​the Banzergraben lies, in terms of natural space , in the lower area of ​​the hill country of Baldern in the foreland of the eastern Swabian Alb . Its highest point near the 587.2  m above sea level. NHN high summit of the Hornsberg does not quite reach 585  m above sea level. NHN .

The northern watershed over the Hornsberg separates from the catchment area of ​​the Killingerbach , a tributary of the first larger Jagst tributary Röhlinger Sechta further down the river. Compared to the Banzenbach, the less significant competitors behind the other catchment area borders also drain directly from the right to the Jagst , behind the eastern watershed mainly the Speckgraben and the Rinnenbach , then behind the western one the Scherbach and the Bächgraben below the Banzengraben.

Forest stands on almost a third of the catchment area. In the open corridor there are mostly meadows, fields almost only to the right on the slope of the lower course. There are only five very small settlement areas in the catchment area or on its border, all of which are mentioned in the → Localities section  . Around 70% of the area with the central part belongs to the city of Lauchheim, the rest to Westhausen, with the exception of only a tiny uninhabited forest gusset in the north on the Hornsberg, which is part of the city of Ellwangen .

Tributaries and lakes

List of tributaries and RiverIcon-SmallLake.svglakes from source to mouth. Length of water, lake area, catchment area and altitude according to the corresponding layers on the LUBW online map. Other sources for the information are noted. Selection.

Origin of the Banzengraben at about 518  m above sea level. NHN approx. 0.5 km south of the Hornsberg summit on the edge of the open bird field to the fire wood and on the municipal border from Westheim to Lauchheim. The brook initially flows south-east along close to the field boundary, it is roughly followed by the municipal boundary between the municipality of Westhausen on the left and the town of Lauchheim on the right.

  • (Other source branch), from the left and northeast to about 509.2  m above sea level. NHN in a small black alder quarry in the Gewann Klinge , approx. 0.3 km to (inconsistent) approx. 0.5 km and approx. 0.2 km². Arises up to 535  m above sea level. NHN also on the edge of the corridor, which he follows almost the entire length. The main branch is (consistently) only slightly longer and richer in catchment area.
  • (Inconsistent meadow stream), from the left and northeast to about 499  m above sea level. NHN west-southwest of Westhausen- Hundslohe , approx. 0.4 km and approx. 0.1 km². Runs away at about 435  m above sea level. NHN a tiny pond on a single tree between Hundslohe and Westhausen- Beerhalden .
  • (Wiesenbach vom Brunnenholz ), from the right and west-southwest to about 498.5  m above sea level. NHN less than 50 meters after the previous one, 0.8 km and approx. 0.4 km². Arises at about 523  m above sea level. NHN southeast of Lauchheim- Mohrenstetten at the northern tip of the forest of Brunnenholz . At first inconsistent.
    Shortly after this meadow brook, the municipal border moves away from the Banzengraben, which now runs in the urban area of ​​Lauchheim.
    • RiverIcon-SmallLake.svgFlows through at about 512  m above sea level. NHN a pond behind the embankment of the Mohrenstetten – Schönberg road, 0.1 ha.
      From this pond, the brook runs more steadily.
  • (Stream from the edge of the hose ), from the right and west to about 494  m above sea level. NHN shortly before crossing a dirt road, approx. 0.3 km and approx. 0.2 km². Arises below 505  m above sea level. NHN on the eastern edge of the forest hose .
  • (Slope from Schönberg), from the right and west-southwest to about 492  m above sea level. NHN , approx. 0.4 km and approx. 0.1 km². Arises at about 515  m above sea level. NHN near the Schönberg farm . Only carries water inconsistently.
  • (Stream through the Geißwiesen ), from the left and northeast to about 490  m above sea level. NHN across from Schönberg, approx. 0.4 km and approx. 0.3 km². Arises at about 515  m above sea level. NHN at the lower edge of the Gangwald Halde , which it initially follows.
  • (Bach from the Pfaffenloh ), from the left and east to about 485  m above sea level. NHN on an old dam at Banzengraben, approx. 0.4 km and approx. 0.1 km². Arises at about 520  m above sea level. NHN in the Pfaffenloh forest south of Hettelsberg .
  • (Outflow of a chain of ponds), from the right and northwest to about 484  m above sea level. NHN shortly after the previous one, approx. 0.7 km (from the bank of the first pond on the mountain side) and approx. 0.5 km².
    • RiverIcon-SmallLake.svgFlows through between 500 and 490  m above sea level. NHN four ponds on the slope under Lauchheim- Schönberg , together 0.8 ha.

Mouth of the Banzengraben from the right and after passing the Banzenmühle, last of all, northeast to approx. 476  m above sea level. NHN in the upper Jagst . The Banzengraben is 3.5 km long and has a catchment area of ​​4.0 km².

Localities

Places close to the run with their affiliations. Only the names of the lowest nesting level denote neighboring settlements.

Ostalbkreis

geology

Layers of the Brown Jurassic are to be found in the entire catchment area, with the exception of only the immediate estuary area in the Quaternary deposited floodplain sediments of the Jagst Valley . The Hornsberg in the far north is a small witness mountain of the iron sandstone formation . Below on the slope the brook arises in the underlying Opalinus Clay formation , in which the brook remains until about the inflow from the pond chain at Schönberg. The iron sandstone already covers the right and left hills again, there the lower stream enters this higher layer; The cause is the natural fall of the layers towards the south-east in the south-west of Germany . At the level of the Banzenmühle, a fault line stretches from the Lauchheim hamlet of Stetten in the northeast to the course of the stream, which belongs to the system of faults along the extensive Swabian Lineament and which against the iron sandstone formation on the Hochscholle in the northwest is even higher in the geological sequence Wedelsandstone formation of the deep floe offset with the small Sandbühl hill in the southeast.

There are two geotopes in the catchment area, both abandoned quarries in iron sandstone on the left slope of the valley in the forest. The smaller one is about half a kilometer north of Lauchheim – Hettelsberg about 150 meters west of the road to Hundslohe and closes at the top of the slope at heights of 530  m above sea level. NHN the lower Donzdorf sandstone, which was previously coveted as work stone, and on top a half-man-high layer of the iron ore-containing lower seam. Bigger is the old quarry on the lower slopes of the forest Pfaffenloh to about 490- 510  m above sea level. NHN , which also shows the thick banked sandstone.

Nature and protected areas

The larger, middle and southern part of the catchment area is part of an almost 15 km² water protection area on and in front of the Albtrauf from east of Lauchheim to the edge of the settlement of Westhofen in the west. On the right in the floodplain next to the lower reaches there are wet meadows.

history

Just outside of the catchment area are the ruins of Hornsberg Castle on the western spur of the eponymous mountain and the Mohrenstetten castle stables a little west of the Mohrenstetten farm. South of Hundslohe there used to be a Lindstetten settlement on the left slope , which today is desolate except for an agricultural building. At the edge of the Schönberg farm are the remains of Schönberg Castle , a castle hill surrounded by a moat.

See also

Individual evidence

LUBW

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

  1. ↑ a b c d Height according to the contour line image on the background layer topographic map .
  2. ↑ a b c Length according to the waterway network layer ( AWGN ) .
  3. ↑ a b Catchment area according to the basic catchment area layer (AWGN) .
  4. ↑ a b c d e f Height according to black lettering on the background layer topographic map .
  5. ↑ Length measured on the background layer topographic map .
  6. ↑ Lake area after the layer standing waters .
  7. ↑ Catchment area measured on the background layer topographic map .
  8. ↑ Protected area according to the layer of the same name, more precise descriptions of the stream nature also according to the biotopes layer .

Other evidence

  1. ↑ Name Banzen bach after the Layer WMS ALKIS basis of: Geoportal Baden-Wuerttemberg ( Notes )
  2. ↑ Hansjörg Dongus : Geographical land survey: The natural spatial units on sheet 171 Göppingen. Federal Institute for Regional Studies, Bad Godesberg 1961. →  Online map (PDF; 4.3 MB)
  3. ↑ Geology roughly based on: Map server of the State Office for Geology, Raw Materials and Mining (LGRB) ( notes )
  4. ↑ Geotope profile of the State Office for Geology, Raw Materials and Mining (LGRN) for the abandoned quarry at Gewann Geiger about 500 m north of Hettelsberg.
  5. ↑ Geotope profile of the LGRN for the abandoned quarry in Pfaffenloh about 500 m north of the Banzenmühle.

literature

  • Topographic map 1: 25,000 Baden-Württemberg, as single sheet No. 7027 Ellwangen (Jagst) Ost and No. 7127 Westhausen

Web links