Insenbach

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Insenbach
Insenbach in Grombach

Insenbach in Grombach

Data
Water code DE : 238984
location Kraichgau

Baden-Württemberg

River system Rhine
Drain over Elsenz  → Neckar  → Rhine  → North Sea
source east of Grombach next to the Elsenz Valley Railway
49 ° 13 ′ 55 ″  N , 9 ° 1 ′ 16 ″  E
Source height approx.  257  m above sea level NHN
muzzle south of Steinsfurt from the right in the Elsenz coordinates: 49 ° 13 '47 "  N , 8 ° 54' 43"  E 49 ° 13 '47 "  N , 8 ° 54' 43"  E
Mouth height approx.  167  m above sea level NHN
Height difference approx. 90 m
Bottom slope approx. 9.6 ‰
length 9.3 km
Catchment area approx. 21,333 km²
Communities EZG only : Kirchardt

The Insenbach is a Kraichgau -Bach in the district of Heilbronn and in the Rhein-Neckar-Kreis in Baden-Württemberg , over nine kilometers long , which flows approximately westwards at the Sinsheimer village of Steinsfurt from the right into the middle Elsenz .

geography

course

The Insenbach arises near the Bad Rappenau village of Grombach just before the Forlenwald forest strip , through which the district boundary runs, on the Elsenz Valley Railway . The official upper course rises at about 257  m above sea level. NHN and keeps from the beginning to almost the end a westerly direction with slight fluctuations. On its first kilometer it approaches the place and takes in some similarly long or even longer right slope tributaries, some of which are dirt roads. Then it moves in a noticeable valley through Grombach, which is mainly on the right lower slope. Below the village it takes the almost parallel Kehrbach from the left, which arises not far from its own origin. Here it already flows on a valley floor, which soon enters a larger forest area between the Bauernwald on the left and Herrenwald on the right and runs through it as a narrow, mostly open band.

Shortly after the municipal boundary to the town of Sinsheim , he passes Neuhaus Castle , which stands in a single location on the right on the spur of a narrow, open ridge between the two larger tributaries, Dombach and Mühlbach. After two more dry valley inflows from the right, the slope on this side becomes forest-free again, soon the stream flows through the Insengrund , which extends to the outskirts of Steinsfurt . Where it has almost reached it, it bends southwest for only a short distance, one after the other under the B 39 , the Elsenzbahn and the Eppingen – Steinsfurt railway from the upper Elsenz valley, which converges with it here . Then the Insenbach flows between the Sinsheim-Steinsfurt junction of the A 6 and the village from the right at about 167  m above sea level. NHN across from the sports fields in the middle Elsenz .

The Insenbach has a length of 9.3 km, an absolute gradient of around 90 meters in altitude and thus an average bed gradient of almost 10 ‰. The Elsenz Valley Railway runs from start to finish in its valley, and a district road runs through Grombach on the upper reaches. In his forest section there is no longer any public road in the valley, even a better-developed field path is only there again after its one-sided forest exit in front of and through the island.

Catchment area

The Insenbach has a catchment area of 21.3 km² in size, which has approximately the contour of a truncated isosceles triangle. One leg on the northwest side extends from the mouth in front of the southern edge of Steinsfurt to about the road from Hasselbach to Adersbach (K 4283), the one on the northeast side from this blunt north corner to the lane of the K 2142 between Forlen- and Ilmenwald east of Grombach .

From a natural point of view, the catchment area is divided into a western part from the tree line below Grombach and Ehrstädt, which belongs to the Neckarbischofsheimer heights sub-area of the Kraichgau , and a larger, predominantly open eastern part, which lies in the sub-area of Leinbachgäu .

The northwestern watershed borders the catchment area of ​​the Goldbach, which also flows into the Elsenz in Steinsfurt a little below; its immediate competitor is soon to be its left-hand inlet, Wolfsgraben. Beyond the north-east, the Krebsbach drains the landscape, on the shorter first section via its inlet Rosenbach, then for a long time via the Grundbach, which also converges from the left; the Krebsbach flows even further down over the Schwarzbach into the Elsenz.

From the eastern tip of the catchment area between Grombach and Babstadt there is a short piece of southeastern watershed from the Forlenwald via the Ilmenwald ; behind it are the uppermost springs in the river system of the Böllinger Bach , which leads almost in the opposite direction to the Insenbach to the middle Neckar, from which the three uppermost spring brooks Krebsbach (!), Rohrwiesenbach and Steinbach arise.

The watershed, which extends back to the mouth in the west, now on the southern edge, separates from the catchment areas first the Berwanger Bach , then the Feldgraben , which after the initial hollow run as a rush blade in a partially wooded notch valley, just like the Berwanger Bach now back to Elsenz above the mouth of the Insenbach runs. Last but not least, this is accompanied by the neighboring creek trough of the short Spitzgraben south of the Steinsfurt Galgenberg , which is used by the A 6 for its descent into the Elsenz valley.

After the Kehrbach, the Insenbach does not experience any significant inflow from the left side, while two longer streams, two dry valleys and a smaller inflow join it from the right; it therefore moves very close to its left watershed below Grombach.

The 301.1  m above sea level. NHN's highest point in the catchment area is close to, but not on, the northeastern watershed on the edge of the oak forest on an east-west ridge bearing a series of barrows between the sub-catchment area of ​​its largest inlet, Mühlbach, and that of the upper Insenbach itself. The northern tip of the catchment area between Adersbach and Hasselbach also rises over 300  m above sea level. NHN on. The terrain level on the two northern watersheds reaches more than 290  m above sea level several times . NHN and often above 280  m above sea level. NHN , on the southern one it is almost always below 280  m above sea level. NHN .

The forest in the catchment area, which covers over a quarter of the total area, is concentrated in the middle reaches, where it extends from the forest valley of the Insensbach up to over one and a half kilometers to the right hill. Smaller parts of the Forlen and Ilmen forest line the eastern edge or form forest islands in the interior, such as the above-mentioned, almost 35-hectare oak forest near Ehrstädt .

The largest part of the catchment area lies in the urban area of Sinsheim , the brook enters it at the middle course and to the right of it also includes large areas around Ehrstädt in the northeast. The remaining parts in the east belong almost exclusively to the urban area of Bad Rappenau around Grombach. Only a very narrow and unpopulated strip south of this village is part of the Kirchardt community .

Tributaries and lakes

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

Origin of the Insenbach at about 257  m above sea level. NHN about one and a half kilometers east of Bad Rappenauer village Grombach next to the flat from the Forlenwald beaten neckargemünd-bad friedrichshall-jagstfeld railway . The creek flows roughly west-southwest.

  • Langengraben , from the right and northeast to about 223  m above sea level. NHN a few hundred meters after the origin, 0.8 km and about 0.3 km². Arises at about 287  m above sea level. NHN at the Guckummerberg . Up to this first inlet, the Insenbach has a length of approx. 0.3 km and a catchment area of ​​approx. 0.6 km². Ditch along the entire length of the field.
  • (Bach from the Rittersgrund ), from the right and north to a little over 200  m above sea level. NHN , 0.8 km and approx. 0.5 km². Arises at about 268  m above sea level. NHN next to the K 2043 Obergimpern – Grombach.
  • (Graben vom Fröschberg ), from the right and north-west to a little below 200  m above sea level. NHN a little before Grombach, 0.9 km and about 0.4 km². Arises at about 267  m above sea level. NHN between the Lerchenberg estate. Ditch along the entire length of the field.
  • Kehrbach , from the left and west to about 232  m above sea level. NHN opposite the last isolated houses in Grombach and at the beginning of the hillside forest, 2.4 km and 1.6 km². Arises at about 265  m above sea level. NHN on the western edge of the Königsholz .
  • RiverIcon-SmallLake.svg Immediately afterwards you pass a pond, 0.1 ha. From here the Insenbach flows approximately west-northwest.
  • Dombach , from the right and east-northeast to about 204  m above sea level. NHN at the district and city limits a little before Neuhaus Castle , 3.7 km and 2.8 km². Arises at about 287  m above sea level. NHN between the homesteads Lerchenberg and the Schmüttenwald in the north. Initially field path ditch, finally Waldklingenbach.
    • Grombachergraben , from the right and northeast to about 236  m above sea level. NHN at the entrance to the forest, 0.9 km and approx. 0.5 km². Arises at about 268  m above sea level. NHN am Domberg ( 288  m above sea level ) south of Ehrstädt .
  • Mühlbach , from the right and northeast to about 189  m above sea level. NHN a little after the Neuhaus Castle, 3.5 km on the name run and 4.6 km together with the Hasseltergraben and 6.5 km². Arises in the name run on the eastern edge of Ehrstädt at about 247  m above sea level. NHN from the confluence of its two headwaters.
    • Hasseltergraben , right and north-northeast upper reaches between Hasenberg ( 294  m above sea level ) and Ehrstädt, 1.1 km and approx. 0.6 km². Arises at about 278  m above sea level. NHN at a tree group under the Zeilrain .
    • Kleinflürlein , left and eastern upper reaches, 0.6 km and approx. 1.2 km². Arises at about 263  m above sea level. NHN on the northern edge of the oak forest .
      • Harzofengraben , from the right and northeast to about 247  m above sea level. NHN at a pump house in front of the eastern edge of Ehrstädt, 1.1 km and approx. 0.6 km². Arises at about 288  m above sea level. NHN between Hasenberg and Vogelherd .
    • Seewiesengraben , from the right to about 241  m above sea level. NHN at the sports area in Ehrstädt, 0.3 km and approx. 0.4 km². Arises at about 248  m above sea level. NHN on the north-western edge of the village.
    • Hörnlegraben , right branch upper reaches from the north-northeast, 2.6 km and approx. 2.4 km². Arises at about 288  m above sea level. NHN southwest of Hasselbach next to the K 4283. Ditching away several times.
      • Dachsgraben , from the right and north to about 240  m above sea level. NHN west-northwest of Ehrstädt, 0.9 km and approx. 0.4 km². Arises at about 276  m above sea level. NHN at the Gewann Dachsloch .
  • (Dry valley inlet Neuhäuser Klinge ), from the right and north to about 186  m above sea level. NHN , approx. 1.6 km and approx. 0.8 km². Set at about 260  m above sea level. NHN west of the Eulenhof. Forest blade.
  • (Dry valley inlet Lampertsklinge ), from the right and north to about 178  m above sea level. NHN at the end of the right slope forest, approx. 1.8 km and approx. 1.2 km². Mulde begins at about 260  m above sea level. NHN north of the Heuberg ( 278  m above sea level ). Mostly forested.
  • Eichenlochgraben , from the right and north to about 171  m above sea level. NHN in the wide Insengrund , 0.9 km and 0.9 km². Arises at about 225  m above sea level. NHN on the western edge of the Eichenloch forest .

Mouth of the Insenbach from the right and, last but not least, northeast to about 167  m above sea level. NHN across from the sports grounds in the south of Steinsfurt in the middle of Elsenz . The stream here is 9.3 km long and has a catchment area of ​​21.3 km².

Flood retention basin

Since 2004 there have been two flood retention basins without permanent accumulation in the course of the Insenbach. The upper one at the upper town limit of Grombach has a 3.5 m high earth dam and can hold back up to 8,730 m³, the lower one just before Steinsfurt and just before the stream enters the Elsenz valley, the earth dam is 6.09 m high and can be up to Stow 70,100 m³. In both cases, the back-dammed water flows away uncontrolled.

Localities

on the run with their affiliations. Only the names of the lowest nesting level denote neighboring settlements.

geology

In the catchment area, the typical Kraichgau layers of the Upper Muschelkalk and above that of the Lower and Middle Keuper are located, on which the equally typical derivatives of the loess , which was brought here in the Aeolian Quaternary, are superimposed on large parts of the hills.

The creek rises on such a hill east-northeast of Grombach, then runs through a Gipskeuper island ( Grabfeld formation ) to about the local border and then changes to the Unterkeuper. From its entry into the forest below Grombach and up to its mouth, the Insenbach then flows in a valley of the Upper Muschelkalks, which is also found in the lower valleys of the larger two brooks that flow from the right and the dry valleys and next to the lower course even builds up the hills up to the ridge . At its mouth, the Insenbach has been flowing in a strip of floodplain sediment for a while.

There are some old quarries in the catchment area. About one kilometer west of Grombach, the main sandstone of the Unterkeuper was quarried in a hillside forest to the right above the Insenbach, which is up to nine meters high here. A little further down the stream, a shell limestone quarry stretches along the railway line. Even further down, in the Gewann Steig, next to the B 39 , a small pit was broken just beyond the watershed on the left ridge of the Upper Muschelkalk. The largest quarry, also a quarry in the Upper Muschelkalk, was located on the Galgenberg near Steinsfurt, the left spur of the valley at the transition from the Insenbach to the Elsenz Valley; today it is a nature reserve. A smaller one on the Hühnerberg near the Ehrstädter Mühle on the Mühlbach tributary opens up the border area of ​​Upper Muschelkalk / Unterkeuper.

Protected areas

The Insenbach moves to its lowest running from Insengrund through the conservation area Lower and Middle Elsenztal . The area was designated with the number 2.26.042 on September 17, 1997 by the Rhein-Neckar-Kreis district office and has a size of around 4,863 hectares. On its left mouth spur near Steinsfurt lies the nature reserve No. 2075 Kirchardter Berg quarry , where forest cover is slowly developing again in a former shell limestone quarry in undisturbed natural succession. The lower catchment area from the western half of Ehrstädt and from the entrance to the forest west of Grombach belongs to a large contiguous water protection area.

See also

Individual evidence

LUBW

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

  1. ↑ a b c Height according to the contour line image on the background layer topographic map .
  2. ↑ a b Length according to the waterway network layer ( AWGN ) .
  3. ↑ a b Catchment area summed up from the sub-catchment areas according to the basic catchment area layer (AWGN) .
  4. ↑ Height according to black lettering on the background layer topographic map .
  5. ↑ Lake area after the layer standing waters .
  6. ↑ Catchment area according to the basic catchment area layer (AWGN) .
  7. ↑ a b c d e f g h i j k l m catchment area measured on the background layer topographic map .
  8. ↑ a b c Length measured on the background layer topographic map .
  9. ↑ Data on the retention basin according to the dam layer -.
  10. ↑ Protected areas according to the relevant layers, nature partly according to the biotope layer .

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. ↑ Geology according to the layers for Geological Map 1: 50,000 on: Map server of the State Office for Geology, Raw Materials and Mining (LGRB) ( notes )
  3. ↑ More information on geotopes can be found in the geotope cadastre on the LGRB's online map server. See the →  web links .

literature

  • Topographic map 1: 25,000 Baden-Württemberg, as single sheet No. 6719 Sinsheim and No. 6720 Bad Rappenau

Web links

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