Grunbach (Sulzbach)

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Grunbach
Data
Water code DE : 23881524
location Swabian-Franconian forest mountains

Baden-Württemberg

River system Rhine
Drain over Sulzbach  → Jagst  → Neckar  → Rhine  → North Sea
source at the edge of the forest or in the Harbach forest near Farbhäusle west of Hummelsweiler in the municipality of Rosenberg
49 ° 2 ′ 33 ″  N , 10 ° 1 ′ 27 ″  E
Source height approx.  487  m above sea level NHN
muzzle at the tire yard of Frankenhardtrechts and west in the left upper arm of the Sulzbach Coordinates: 49 ° 2 '46 "  N , 10 ° 4' 22"  E 49 ° 2 '46 "  N , 10 ° 4' 22"  E
Mouth height approx.  419  m above sea level NHN
Height difference approx. 68 m
Bottom slope approx. 16 ‰
length over 4.3 km
Catchment area 3.863 km²
Reservoirs flowed through Farbsee,

The Grunbach is over 4 km long river in northern Baden-Wuerttemberg , which after about eastern pass through the territories of the northeastern Baden-Wuerttemberg in the Ostalbkreis and Schwäbisch Hall lying communities Rosenberg , Frankenhardt and Jagstzell the Reifenhof of Frankenhardt in from the right left upper course of the Jagst tributary Sulzbach flows.

geography

course

The Grunbach arises on the edge of this or a little further west within the Harbach forest in the large clearing island around the central Rosenberg hamlet of Hummelsweiler at an altitude of 487  m above sea level. NHN or something more. It flows very steadily east to east-north-east along its entire course. From the edge of the Harbach forest , it runs through a reed bed for the first 300 meters until it runs into the larger and lower of the two dammed colored lakes near the Farbhäusle residential area . Below it very soon reaches the outskirts of Hummelsweiler and crosses this largest place on its course partly underground. So far, walking on his way in the open corridor in a rather shallow hollow, he quickly digs a valley gully from the lower edge of the village, in which it now consisted of trees and bushes very close to nature and soon meandering between the villages on the high bank on the right Schüsselhof von Rosenberg and on the left Belzhof, which already belongs to Frankenhardt, flows through it and receives a few hundred meters long inlets from both.

Then he enters a forest area in which he is always accompanied on at least one side by a meadow at least 50 meters wide. The left forest already in Frankenhardter Flur is called Grunbachwald , the right one in Rosenberger Buchhölzle . The floodplain widens mainly to the right in the Wiesengewann, known on this page as Rauhe Burg , to over 300 meters wide, because the Schüsselbach now slowly approaches the Grunbach from its open lower valley from the south. A little next to each other and again in a narrow floodplain, both run through two notches of a pierced lake dam, immediately afterwards the Schüsselbach flows out. From here the municipal areas of Frankenhardt from the north and Jagstzell from the south meet in the floodplain or on the river. Less than 300 meters down, the Grunbach passes the Frankenhardt Grunbachsägmühle, which is over 50 meters away from the water on the left.

After her, the meanwhile flat hill becomes forest-free in front of the receiving water approaching from the left, half a kilometer further down, after the Grunbach has passed a large number of small ponds close to the left bank, including the right one. In a narrow strip of alluvial forest, the Grunbach passes the Reifenhof in the triangular mouth and then flows out at around 419  m above sea level. NHN from the right and finally west-southwest into the left upper reaches of the Sulzbach , which rises one and a half kilometers northwest of the Grunbach origin also in the Harbachwald as Harbach .

The Grunbach is 4.3 km long from the edge of the Harbach forest and flows out about 68 meters below sea level at this point, so its mean bottom slope from there is about 16 ‰.

At the right foot of the slope, the road from Hummelsweiler to Randenweiler runs in sections from the entrance of the Schüsselbach into the valley .

Catchment area

The Grunbach has a 3.9 km² catchment area in the Ellwanger Mountains , which is just over 4.5 km far from its western tip in the Harbach forest near a water reservoir at 518.7  m above sea level. NHN high Kuppe, its highest point, with a spindle-shaped contour extends eastwards to the mouth at the Reifenhof. Across it, it is a maximum of 1.6 km wide. In the north it borders along its entire length on the left upper course of the receiving Sulzbach , which only takes this name near the mouth and is previously called Harbach , Sobach and others. The southern watershed runs upwards from the mouth towards the right Sulzbach upper course, further to the west, on the other hand, the Orrot , which, like the Sulzbach, also joins the Jagst , competes beyond the Glasbach upper course . Only the point at the western tip partially drains via the upper Blinde Rot to the stove .

Slightly less than half of the catchment area is forested, it is a small part of the Harbachwald in the far west and above all the forest bar that begins after Schüsselhof and Belzhof as far as approximately Grunbachsägmühle, where the valley floodplain remains free. Outside the valley basin, the open corridor is mostly under the plow.

The largest part of the catchment area from the Harbachwald partly into the forest bar below Schüsselhof and Belzhof belongs to the municipality of Rosenberg in the Ostalbkreis . Below it is divided into a southern part, which belongs to the municipality of Stimpfach , and a northern part, which is in the Honhardt suburb of Frankenhardt in the neighboring district of Schwäbisch Hall ; the border between the two roughly follows the course of the stream.

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.

Origin of the Grunbach at about 487  m above sea level. NHN on the eastern edge of the Harbach forest near the Farbhäusle of the municipality of Rosenberg or a little further in the forest. The stream flows consistently west to west-northwest.

  • RiverIcon-SmallLake.svgFlows through at about 483  m above sea level. NHN the larger of the two colored lakes , together 0.9 ha.
  • RiverIcon-SmallLake.svgFlows through at about 477  m above sea level. NHN a small pond in front of the outskirts of Hummelsweiler , well below 0.1 ha.
  • (Pond drain), from the right and south to about 459  m above sea level. NHN north of the Schüsselhof , less than 0.2 km and approx. 0.1 km².
    • RiverIcon-SmallLake.svgThe source pond is about 472  m above sea level. NHN at the Schüsselhof, under 0.1 ha.
  • (Associated source discharge), from the left and northwest to about 456  m above sea level. NHN about a hundred meters further down, about 0.2 km with each of the two source branches and about 0.3 km². Both sources lie between the Mehlhof and the Frankenhardter Belzhof at around 470  m above sea level. NHN .
  • Schüsselbach , from the right and southwest to about 431  m above sea level. NHN a little below a pierced lake dam about 300 meters west-southwest of the Grunbachsägmühle by Frankenhardt, 1.4 km and about 1.2 km². Arises with the longest upper course at about 477  m above sea level. NHN on the municipality border Rosenberg / Jagstzell between Buchholz and Upper Forest .
  • RiverIcon-SmallLake.svgPassed at about 425  m above sea level. NHN is a multi-link chain of small ponds on the left bank between Grunbachsägmühle and the Frankenhardter Reifenhof , a total of 0.4 ha.

Mouth of the Grunbach from the right and finally west-southwest to about 419  m above sea level. NHN at the Frankenhardt tire yard in the left upper reaches of the Sulzbach . The Grunbach is about 4.3 km or a little more long and has a catchment area of ​​3.9 km².

Localities

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

geology

The catchment area of ​​the Grunbach lies entirely in the Keuper . It arises in the silica sandstone ( Hassberge formation ) or higher. After initially running quite flat in the open corridor, after leaving Hummelsweiler, it quickly digs a valley trough through the Lower Bunten Marl ( Steigerwald Formation ) to the reed sandstone ( Stuttgart Formation ). A little before the Grunbachmühle it reaches the Gipskeuper ( Grabfeld formation ), into which it also flows.

nature

The Grundbach runs from the edge of the Harbach forest to near the Farbsee in a reed bed , which is designated as a natural monument. In Hummelsweiler he is a bit overturned. From the end of the village, it mostly runs in natural small meanders, partly accompanied by wet meadows. Finally, the bushes and trees that were already quite dense expand to a small strip of alluvial forest.

Individual evidence

LUBW

Official online waterway map with a suitable section and the layers used here: Course and catchment area of ​​the Grunbach
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 ) . A short initial section from the edge of the forest to the Farbhäusle, which was not taken into account there, was measured on the topographic map background layer and added.
  3. ↑ a b Catchment area according to the basic catchment area layer (AWGN) .
  4. ↑ Height according to black lettering on the background layer topographic map .
  5. ↑ Length according to the waterway network layer ( AWGN ) .
  6. ↑ Lake area after the layer standing waters .
  7. ↑ Catchment area measured on the background layer topographic map .
  8. ↑ a b Length measured on the background layer topographic map .

Other evidence

  1. ↑ 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)
  2. ↑ Geology roughly based on: Map server of the State Office for Geology, Raw Materials and Mining (LGRB) ( notes )

literature

  • Topographic map 1: 25,000 Baden-Württemberg, as single sheet No. 6926 Stimpfach

Web links