Schießbach (Bühler)

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Schiessbach
View down the stream, near the source

View down the stream, near the source

Data
Water code DE : 23866554
location Hohenloher and Haller level

Baden-Württemberg

River system Rhine
Drain over Bühler  → Kocher  → Neckar  → Rhine  → North Sea
source approx. 0.1 km south of the intersection of the L 1066 with the L 1060 at Obersontheim
49 ° 3 ′ 1 ″  N , 9 ° 53 ′ 7 ″  E
Source height approx.  388  m above sea level NN
muzzle in Obersontheim in continuation of Marktstrasse from the left into the Bühler coordinates: 49 ° 3 '26 "  N , 9 ° 54' 2"  E 49 ° 3 '26 "  N , 9 ° 54' 2"  E
Mouth height approx.  365  m above sea level NN
Height difference approx. 23 m
Bottom slope approx. 14 ‰
length 1.7 km 
approx. 2.7 km with left orienteering
Catchment area approx. 2 km²
Outflow
A Eo : 2 km²
at the mouth
MQ
Mq
22 l / s
11 l / (s km²)
Communities Obersontheim

The Schießbach is a brook in the municipality of Obersontheim in the district of Schwäbisch Hall in northeastern Baden-Württemberg, 1.7 km in length, which flows into the Bühler from the left in the main village of the same name .

geography

Source and history

The Schießbach rises a good 100 m south of the intersection of Landesstraße 1066 and Landesstraße 1060 on the southwest edge of Obersontheim between two cattle pastures in a V-shaped channel at about 388  m above sea level. NN . The channel continues upwards as a sometimes water-bearing delimitation and field path ditch; 200 m south-east of the mentioned source there is an almost always wet hollow in a meadow, from which water noticeably flows into this ditch when the weather is damp.

Between the two cattle pastures, the Schießbach moves north towards the roundabout, piped under it and then turns east in a meadow in a creek bed overgrown with watercress in front of the fire station of the village . At the fire brigade site today, it takes its longer upper course from the left from the women's blade , then reaches a tiny wood. Immediately before it then crosses under the L 1066 at an angle, there is a dividing structure on the run which, when the water level is high, allows some of the water to flow over a threshold into a 15 acres large retention basin to the left of the run, which is well hidden by woody plantings.

Shortly after passing it, the stream crosses a dirt road and then continues eastwards through its more and more deepened valley, the bottom of which is divided into private allotment strips. At one point it runs through a flat concrete channel, in some places you can see the recreational gardeners' scoops, elsewhere it flows in small meanders around tree roots, and finally it divides a plot of land on which old knotty wicker stalks line its course. Then he moves through a pasture, on the right slope of which you can clearly see three natural terracing levels, and then enters the settlement area of ​​the village at Obersontheimer Friedhof. Here it turns to the north and flows underground in the local area below the square-like wide brook road. Shortly before it ends, he steps into the light again for a few meters between the back walls of the house, his bed is artificially set in a rectangular trough. Then it crosses under the main road in the now concreted and covered canal and flows one length of the property further at about 365  m above sea level. NN , about 1.7 km below its source, from the right into the Bühler, which here in the backwater area of ​​the weir at the Koppenmühle flows slowly under tall trees.

In the event of heavy rain, the L 1066 road ditch that tapers at the roundabout can temporarily feed the stream several times over.

Before the construction of the retention basin and the creation of a railing channel next to the Koppenmühlen weir a little further below on the Bühler, through which part of the water flows directly into the underwater when the water level is high today, there should be floods at the mouth almost annually in the Area of ​​the main street.

Left upper reaches from the woman's blade

The left upper course at the edge of the property of the fire station emerges in the Frauenklinge at about 410  m above sea level. NN . There is a small reservoir , above which the small, initially strongly meandering creek cut can be traced further uphill to the western edge of the forest, ultimately only more than half a meter deep, dry-loamy hollow in which leaves collect and through which apparently only in rare cases Heavy rain water flows. Down from the pond, however, the bed mostly carries water. From here this run runs east through the Frauenklinge and then enters the corridor of the Birngründles , where it first feeds a small pond. After this he moves next to a tiny forest island on his right through a small meadow hollow and experiences some inflow from the right. On this side there is also a small permanent swamp over the hollow. Then he walks between two large fields, straightened, next to a dirt road, here some trees line his trench bed. Shortly after a protected oak tree on its old route, he runs in a pipe next to a pedestrian underpass under the L 1060 and immediately reaches the corner of Kärcherstraße in the industrial park, from where he has been heading south in a ditch along the fire department site for a few years (as of 2016) the last about 50 meters to the right upper course and flows in a small meadow into this water-rich, but significantly shorter course. The left upper course has a length (from the mountain end of the pond in the Frauenklinge ) of about 1.4 km. In summer it sometimes has no water at the estuary either.

Catchment area

The shooting stream has a catchment area of 2.0 square kilometers size, in the subspace Vellberger bay of the natural space Hohenloh and Haller plane is located. Its highest point is on the southwest corner at 444.9  m above sea level. NN on the Mittelfischacher vineyard near a water reservoir in the forest of Hohenstück . At 439.6  m above sea level NN not much lower is the second highest point near the northwest corner on the Hitzberg . In between, the catchment area of ​​the more important Fischach borders in the west . In the north, the Riedbach competes via its right tributary Ernsbach and, further east, the short and completely cased Ebbach that pushes in front of the Riedbach . In the south the watershed runs to the Dietelsbach , which, like the Riedbach and the Ebbach, runs parallel to the Schießbach stream to the Bühler.

About 30% of the catchment area is forest, which occupies the funnel-shaped valley of the left upper course ( Frauenklinge ) and the eastward tapering plateau tongues of Hitzberg and Hohem Stück and their slopes accompanying this in the north and south . The greater part of the rest of the catchment area is already in the vicinity of the village of Obersontheim, including its south-western industrial and commercial zone.

The village of Obersontheim is located on the banks of the Schießbach , and the single house, the Gipshütte, is located on the northern edge of the catchment area.

geology

The damp hollow still above the official source is in the Lower Gipskeuper ( Grabfeld formation ), the same applied to a former sealed break-in doline of around 20 ares northwest of the pond in the Birngründle , which is now filled. The source lies on the border between Gipskeuper and Lettenkeuper ( Unterer Keuper ), in which the barrel then remains almost up to the mouth. The pond in the Frauenklinge , from which the longer left source branch flows, lies high in the plaster keuper; this branch reaches the Lettenkeuper at its street crossing. Hitzberg and Hohes Stück on both sides of the women's blade are half or completely in the catchment area, their flat plateaus are formed by the layers of estheria of the upper plaster keuper.

Landscape and nature

The Schießbach arises in a flat land that is framed and criss-crossed by flat and rounded hills above the source, with many flat and often moist meadows, the exact direction of drainage in the landscape sometimes remains unclear. Immediately after passing under the state road roundabout, the stream runs in an area characterized by more recent commercial, industrial and commercial buildings, which is followed by the approximately 500 m long allotment garden zone, in which it first forms its valley. In the village it is then almost invisible, its recognizable creek basin follows the Bachstrasse.

His left branch has formed a miniature meander valley with small sandbanks and oxbow lakes in the forest in the woman 's blade.

Protected areas

The pond at the transition of the left branch from the Frauenklinge to the Birngründle , which was only dammed in the aforementioned Einbruchdoline in the 1970s or 1980s as a compensatory measure for the filling of a wetland, is now a large-scale natural monument. The same applies to the small wooded area to the south of it, together with the adjacent small swamp and a succession area on the southern slope of the Hohe Stück with three oaks that stood on the old edge of the forest.

The pond in the Frauenklinge and a poor lawn on the southeastern Hitzberg near the gypsum hut and a field hedge on the L 1060 to the east are protected by forest biotopes . To the southwest of the poor grassland area, a large field bush borders the edge of the forest.

In the open field, apart from some field hedges that accompany the road, some wetlands are also protected: the aforementioned moist hollow above the spring, a wet meadow in the Birngründle below the pond at the edge of the forest, the aforementioned small swamp there, a reed bed to the left of the course in the forest fields which has suffered quite a lot in nature due to road construction, plus all the near-natural sections of Schießbach from the source to the edge of the Obersontheim settlement at the cemetery as well as its left inlet in the eastern Birngründle .

See also

Individual evidence

LUBW

Official online waterway map with a suitable section and the layers used here: Schießbach with catchment area
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. Length according to the waterway network layer ( AWGN ) .
  3. a b Length measured on the background layer topographic map .
  4. ↑ Catchment area measured on the background layer topographic map .
  5. a b Height according to black lettering on the background layer topographic map .

Other evidence

  1. Modeled values ​​according to the discharge BW water node MQ / MNQ
  2. Own observation.
  3. According to information from a community employee who was met.
  4. Wolf-Dieter Sick : Geographical land survey: The natural space units on sheet 162 Rothenburg o. D. Deaf. Federal Institute for Regional Studies, Bad Godesberg 1962. →  Online map (PDF; 4.7 MB)
  5. Geology according to the geological map listed under →  Literature . A rough overview also provides: Mapserver of the State Office for Geology, Raw Materials and Mining (LGRB) ( notes )
  6. Protected areas according to LUBW-SCHUTZ.

literature

  • Topographic map 1: 25,000 Baden-Württemberg North, as single sheet No. 6925 Obersontheim
  • Geological map of Baden-Württemberg 1: 25,000, published by the State Geological Office 1982, sheet no. 6925 Obersontheim with explanatory booklet.

Web links

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