Steinbach (Ohrn)

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Steinbach
upper course: Lochbach
Data
Water code DE : 23867834
location Swabian-Franconian forest mountains

Baden-Württemberg

River system Rhine
Drain over Ohrn  → Kocher  → Neckar  → Rhine  → North Sea
source east of Obersteinbach im Großerlenhau
49 ° 9 ′ 13 ″  N , 9 ° 37 ′ 18 ″  E
Source height approx.  474  m above sea level NHN
muzzle in the northwestern Untersteinbach from the right and east into the upper Ohrn Coordinates: 49 ° 8 '40 "  N , 9 ° 33' 52"  E 49 ° 8 '40 "  N , 9 ° 33' 52"  E
Mouth height approx.  259  m above sea level NHN
Height difference approx. 215 m
Bottom slope approx. 38 ‰
length approx. 5.6 km
Catchment area 8.389 km²

The Steinbach is an almost 6 km long stream in the Hohenlohe district in northern Baden-Württemberg , which flows into the Ohrn from the right and east in the village of Untersteinbach in the Pfedelbach community . Its upper course on the plateau of the Waldenburg Mountains and on their western slope to the Steinbacher Tal erosion bay of the Ohrn is called Lochbach .

geography

course

The main upper course, Lochbach of the Steinbach, arises east of Waldenburg-Obersteinach on the edge of the Großerlenhau forest area on the plateau of the Waldenburg Mountains northwest of the humid Obere Weide nature reserve, which is criss-crossed by old sea dams, at a height of just over 474  m above sea level. NHN . It first flows west-north-west in a ditch near fields in a west-north-west direction towards the village of Obersteinbach , which it then passes through in a more west-south-west direction. After the lower village boundary begins at about 455  m above sea level. NHN its steep blade section, on which it runs through the wooded hole blade , always south and finally south, to only about one and a half kilometers to 319.3  m above sea level. Digs down the NHN .

At this height, the Häulesbach runs towards it from the west , an almost as long and catchment-rich left source branch, which begins its course not far from the main branch origin in the southern Obere Weide , then passes Obersteinbach in the south and flows into the main branch after a richer blade than this. After this inflow, the Lochbach slowly turns westward again, leaving the forest 200 meters further into an initially still narrow meadow, which, like the valley landscape that it traverses afterwards, mostly accompanied by a tree gallery in small meanders. The floodplain soon widens. The stream now leaves the forest completely behind and then flows under the slopes of the Steinbach Valley, which is characterized by orchards, westwards to the Pfedelbach hamlet of Mittelsteinbach .

In the hamlet it reaches about 282  m above sea level. NHN from the northeast is another large, this time right inflow, which arises on the wooded plateau at the Viehweide nature reserve on Markung Michelbach , which, like the Obere Weide, was set up at its own source to preserve an old Hutewald . Below this, the last of the tributaries running along the valley path of the K 2359 from Obersteinbach, the stream is then called Steinbach . Running alongside the county road through the valley floor, it finally reaches the edge of the village of Untersteinbach. The first vineyards can be seen here on the right, south-facing slope of the Steinbacher Mountains and the Simonsberg above. In the village, the run remains open almost to the main thoroughfare (K 1024 through the Ohrntal), only the last 100 meters or so are diluted.

The Steinbach opens last verdolt, after 5.6 km run on the western edge of the Pfedelbach village Untersteinbach little below the road bridge to Fleinersmühle to about 259  m above sea level. NHN from the right and east into the upper ear . On the entire run with Lochbach it has a gradient of 215 meters and thus a mean bottom gradient of about 38 ‰. It loses more than half of its height on its blade section, on which little more than a quarter of the total length of the stream falls.

Catchment area

The Steinbach has a catchment area of 8.4 km² in the subspace Waldburger mountains of the natural environment Swabian-Franconian Forest . It extends from the Großerlenhau in the far east over the Lochbach and Häuslesbach springs to the confluence in Untersteinbach in the far west for about 5 km. Its widest point measures only about 2.5 km across it. It borders along the entire northern watershed on the plateau against the catchment area of ​​the Michelbach , which also runs down from the right of the middle Ohrn. Beyond the east, the beaver moves south to the middle Kocher . Behind the southeastern watershed lies the drainage area of ​​the Schupbach on the plateau, which runs into the upward Ohrn as well as the only short Dürrenklingenbach in the southwest, which also flows into Untersteinbach on the other side of the spur, which the road uses from there to Büchelberg .

The greatest heights of up to 478.8  m above sea level. NHN (on the little road from Obersteinbach eastwards to Entlesboden and to K 2362) are reached at the eastern Bibers watershed. The plateau is mostly over 460  m above sea level. NHN .

The Steinbach drains part of the Waldenburg Mountains , a sub-area (with number 108.5) of the Swabian-Franconian Forest Mountains natural area , which by definition includes not only the eponymous forest plateau south of Waldenburg but also upward parts of the erosion bay of the Ohrn up to the river. From opposite the subspace abuts Front mainhardt forest (no. 108.40) to the overflow of the receiving water Unterohrn, downstream of the mouth expects the already above for the location Untersteinbach Steinbacher valley -called wide valley in the keuper Forest Bergen then the subspace Öhringer level (No. 127.21) in the neighboring Hohenloher Ebene natural area .

About 60% of the area is covered by forest, which is divided into two different parts: The larger part in the west, almost three quarters, occupies the slopes to the valley of the Steinbach and also includes the large wooded area of cattle on the right plateau. The smaller one, with the Großerlenhau in particular , lines the eastern edge on the plateau to the Bibers catchment area. On the steep slopes to the middle and lower valley, deciduous forest dominates, on the plateau, however, there are large closed coniferous forests, which were reforested in the area of ​​the flat and swampy former light hut forests. The area includes almost the entire clearing island around Obersteinbach on the plateau, where arable farming dominates, and the open valley and hillside areas in the lower Lochbach and Steinbach valleys, which take up almost as much space and are mainly occupied by grassland and orchards.

Over 35% of the area belongs to Waldenburg - on the plateau around Obersteinbach - and to Pfedelbach - below the slope edge of the plateau. The almost half as large part of the Michelbacher subdivision of the city of Öhringen includes almost exactly the forest meadow forest . From Büchelberg ago protrudes an even smaller, more engaging namely below 10% of the total wedge Michelfelder district, a forest named Bides , north to about the middle Häusle Bach -Lauf time.

Tributaries

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

Origin of the Steinbach mentioned in the upper reaches of Lochbach at about 4751  m above sea level. NHN east of Waldenburg-Obersteinach on the edge of the Großerlenhau forest area with the humid Obere Weide nature reserve, criss-crossed by old sea dams . The stream first flows west-northwest through the corridor, then west-southwest through Obersteinbach. He then occurs at about 455  m above sea level. NHN at the sewage treatment plant at the end of the village into the wooded hole blade . The brook flows more and more south.

  • Häulesbach , from the left and east-northeast to 319.3  m above sea level. NHN in the lower Lochklinge, 2.2 km and approx. 1.8 km² and thus slightly exceeded in both sizes by the upper reaches of the Lochbach (approx. 2.6 km) and approx. 2.3 km². Arises at about 478  m above sea level. NHN in the southern Great Pasture ( 49 ° 9 ′ 3 ″  N , 9 ° 37 ′ 34 ″  E ). Flows on a more direct route south past Obersteinbach to the west. From this inflow, the Lochbach turns west again.
  • (Hangbach from the direction of the Erlenhaues on the plateau), from the left and south-east to about 308  m above sea level. NHN shortly after the forest emerges, 0.7 km and approx. 0.4 km². Arises at about 442  m above sea level. NHN near the upper slope edge. Above there is a small pond in a small wet meadow on the plateau.
  • Gottelebach , from the right and northeast to about 282  m above sea level. NHN in Mittelsteinbach , 1.8 km and about 1.1 km².
    From this inflow, the stream is called Steinbach .
  • (Hangbach am Holderberg ), from the right and north-northwest to about 281  m above sea level. NHN a good 50 meters after the previous one in Mittelsteinbach, 0.5 km and approx. 0.2 km². Arises at about 365  m above sea level. NHN on the upper slope of the Holderberg still in the forest.

Mouth of the Steinbach from the right and east to about 259  m above sea level. NHN on the western edge of Untersteinbach last twisted a little down the bridge to Fleiners Mühle from the right and east-northeast into the upper Ohrn . The stream here is approx. 5.6 km long and has a catchment area of ​​8.4 km².

places

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

geology

The main upper course and the two large tributaries of the Lochbach / Steinbach arise on the flat plateau of the Waldenburg Mountains formed by silica sandstone ( Hassberge formation ). After the beginnings of the blades, they first dig into the lower colored marl ( Steigerwald Formation ) and then cross a narrow strip of reed sandstone ( Stuttgart Formation ) to then merge one after the other in the Gipskeuper ( Grabfeld Formation ) to form the Steinbach also ends in the Gipskeuper. The whole brook system is therefore in the middle keuper .

On the valley slopes before the western turn of the Lochbach and then on the right slope, there are large areas of landslide, reaching from the upper edge of the slope almost into the valley floor, which hide the original stratification here. The otherwise narrow reed sandstone band on the slope is significantly widened a little north of the upper Steigenstrasse from Untersteinbach to Büchelberg. In Bides and Großerlenhau , the otherwise highest layer of silica sandstone is made up of islands of loess sediment of Quaternary origin.

Individual evidence

LUBW

Official online waterway map with a suitable section and the layers used here: Course and catchment area of ​​the Steinbach
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 c Length according to the water network layer ( AWGN ) of the LUBW's online map server, additional upper section at the Große Weide measured on the background layer topographic map .
  3. ↑ a b Catchment area according to the basic catchment area layer (AWGN) .
  4. ↑ Length according to the waterway network layer ( AWGN ) .
  5. ↑ Lake area after the layer standing waters .
  6. ↑ Catchment area measured on the background layer topographic map .
  7. ↑ a b Height according to black lettering 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 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 ). The geological map listed under → Literature offers a similar Bold  .

literature

  • Topographic map 1: 25,000 Baden-Württemberg, as single sheet No. 6823 Pfedelbach
  • Geological map of the Swabian-Franconian Forest Nature Park 1: 50,000, published by the State Office for Geology, Raw Materials and Mining Baden-Württemberg, Freiburg i. Br. 2001.

Web links