Irsbach

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Irsbach
Data
Water code DE : 2386382
location Swabian-Franconian forest mountains

Baden-Württemberg

River system Rhine
Drain over Eisbach  → Kocher  → Neckar  → Rhine  → North Sea
source about 2 km southwest of Obersontheim -Weiler near Brünststrasse
49 ° 0 ′ 2 ″  N , 9 ° 50 ′ 30 ″  E
Source height almost  490  m above sea level NHN
muzzle in the northern part of the village of Sulzbach von Sulzbach-Laufen from the left and finally Nordisten in the Eisbach coordinates: 48 ° 58 ′ 3 ″  N , 9 ° 50 ′ 28 ″  E 48 ° 58 ′ 3 ″  N , 9 ° 50 ′ 28 ″  E
Mouth height approx.  340.2  m above sea level NHN
Height difference approx. 149.8 m
Bottom slope approx. 30 ‰
length 5 km
Catchment area 5.503 km²

The Irsbach is a brook in the district of Schwäbisch Hall in north-eastern Baden-Württemberg, about 5 km in length, which flows into the Eisbach from the left in the Sulzbach von Sulzbach-Laufen part of the municipality .

geography

Source and history

The Irsbach rises in the southwestern tip of the Obersontheimer municipality area on the forest plateau of the Limpurger Mountains in the Geißbühl forest area near the Aigeltinger Linde at the so-called Försterbrunnen (unmounted spring). It runs through the narrow and rapidly deepening Trübe Klinge to the southeast and, less than a kilometer from the left, takes on a source branch of about the same length that arises at the forest path star at the former Hasenbühl military dump and through whose blade a forest path leads down into the valley closely accompanies the Irsbach in its wider forest blade. Over the next 2.5 km, a large number of steep Klingenbach streams run towards the Irsbach at right angles, from left and right, of which the greater lengths reach half a kilometer and come from the high roads on both sides of the coal road on the left and the Brünststrasse on the right . Most of them are nameless. Its largest inflow with a length of 1.5 km from the left from the Stallwasenklinge reaches it after 3.4 km, immediately afterwards it turns to the southwest, its forest blade widens to a wide valley in an open corridor and the accompanying road rises to the left Slope foot. After a good hundred meters, after the tributary of the Tiefenklinge (stream length 1.2 km), it feeds two ponds with a total area of ​​0.3 ha from the right, about 0.9 km after its bend it reaches the Sulzbacher Fulling Mill and finally flows into the northern local area of Sulzbach, 5.0 km below its source, from the left into the Eisbach .

Catchment area

The Irsbach has a catchment area of ​​5.5 km², the shape of which is roughly a triangle with two long legs. The western one at the watershed to the Eisbach follows the route of the Brünstweg, the northeast that of the Kohlenstrasse as far as Sulzbach-Hohenberg, the shorter base runs from the confluence to there over the open ridges of Kirchberg and Herrenfeld . From a natural point of view, it is in the Swabian-Franconian Forest Mountains , predominantly and up to the bend in the south-west of the Limpurger Mountains , with only the left side of the valley after that in the Sulzbacher Kochertal .

In turn, the following streams compete with the Irsbach:

  • to the north is the headwaters of the hamlet of Bach , which drains into the Kocher via Fischach and Bühler ;
  • behind the entire north-eastern watershed, right-hand tributaries from this feed the Bühler tributary Klingenbach ;
  • in the southeast, short streams feed the Kocher or the lowest Eisbach shortly before their confluence;
  • on the other side of the western watershed, the upper course of the Eisbach collects the entire runoff before the Irsbach inflow.

Tributaries and lakes

Hierarchical 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 Irsbach at about 490  m above sea level. NHN in the Geißbühl forest area near the Aigeltinger Linde at the Försterbrunnen (unmounted source). The stream initially flows south-southeast for a long time.

  • (Other upper course), from the left and north to 468.9  m above sea level. NHN , 0.7 km and approx. 0.4 km². Arises at about 490  m above sea level. NHN at the Waldwegestern on the Kohlenstraße near the former Hasenbühl military depot. The upper course of the Irsbach up to there in the so-called Trüben Klinge is 0.7 km long and also has a partial catchment area of ​​approx. 0.4 km².
  • (Waldklingenbach from the northern Falchen ), from the left and northeast to about 438  m above sea level. NHN , 0.5 km and below 0.2 km². Arises at about 485  m above sea level. NHN on the Kohlenstrasse.
  • (Waldklingenbach between Falchen and Brandwald ), from the left and east-northeast to about 410  m above sea level. NHN , 0.5 km and over 0.1 km². Arises at about 462  m above sea level. NHN near the Kohlenstraße and a little northwest of the Saubuschhütte.
    After this inflow, the Irsbach valley runs southwards with slight fluctuations.
  • (Waldklingenbach from the Irsbachklinge ), from the right and west to a little over 400  m above sea level. NHN , 0.7 km and approx. 0.2 km². Arises at about 470  m above sea level. NHN a little east of the Brünststrasse and approx. 0.6 km south-southeast of the Brünsthütte.
  • (Waldklingenbach from the Brandwald ), from the left and east-northeast to a little below 400  m above sea level. NHN less than a hundred meters after the previous one, 0.6 km and approx. 0.2 km². Rises below 460  m above sea level. NHN a little south of the Saubuschhütte.
  • (Waldklingenbach from the Brandwald ), from the left and east to about 394  m above sea level. NHN , 0.6 km and approx. 0.2 km². Arises at about 479  m above sea level. NHN .
  • (Waldbach from the Schmiedsklinge ), from the right and west-northwest to about 391  m above sea level. NHN , 0.5 km and below 0.2 km². Arises at about 466  m above sea level. NHN .
  • ( Forest stream from the stall washer blade ), from the left and east-northeast to below 379.6  m above sea level. NHN at the forest exit, 1.5 km and about 0.9 km². Arises at about 477  m above sea level. NHN a few meters northeast of the Kohlenstrasse.
    At this tributary, the Irsbach turns to the southwest.
  • (Bach through the Tiefenklinge ), from the left and east-southeast to about 374  m above sea level. NHN , 1.2 km and approx. 0.4 km². Arises at about 466  m above sea level. NHN on the open plateau a little north of Sulzbach- Weißenhaus and flows back into the open corridor after the wooded Tiefenklinge.
    • RiverIcon-SmallLake.svgPassed at about 385  m above sea level. NHN a small pond on the right bank below Brunnengasse on the lower slope, under 0.1 ha.
    • RiverIcon-SmallLake.svg Shortly before the estuary it flows through two ponds one after the other, a total of 0.3 ha.
  • (Bach from the Wolfsklinge ), from the right and north-northwest to about 367  m above sea level. NHN , 0.6 km and approx. 0.2 km². Arises at about 420  m above sea level. NHN near a clearing in the Brünst .
  • (Bach from the Hagklinge ), from the left and east to just under 350  m above sea level NHN at the Walkmühle in front of Sulzbach, 1.0 km and under 0.3 km². Arises at about 468  m above sea level. NHN a little north of Sulzbach- Jägerhaus .

Mouth of the Irsbach from the left and finally northeast to 340.2  m above sea level. NHN next to an industrial site in Eisbachstrasse in the village of Sulzbach am Kocher in the municipality of Sulzbach-Laufen in the Eisbach , less than a kilometer from its confluence with the Kocher . The Irsbach is 5.0 km long and has a 5.5 km² catchment area .

Municipalities and localities

The vast majority of the stream and catchment area of ​​the Irsbach belongs to the municipality of Sulzbach-Laufen. Its source is still in the Obersontheim area , whose area in the Trüben Klinge then borders on the left as far as the brook and to which a total of around 0.5 km² of the catchment area belongs to the upper reaches. To Buhlerzell include only two snippets of about 0.1 square kilometers along on the crest of the left of the middle reaches of the coal road where the watershed exceeds this limit road just to the east. The only settlements on the brook are in Sulzbach-Laufen, namely the Walkmühle and Sulzbach am Kocher . In addition, there are two or three houses in the catchment area by Brünst on the Mündungsbergsporn between the Irsbach and Eisbachtal valleys, which drain on the Irsbach side.

geology

The catchment area is in the Mittelkeuper . Its highest layer is the Stubensandstein ( Löwenstein Formation ), which covers its northern tip, exposes before the swelling of the two upper course blades, occurs as an island on the right and left watershed on both sides of the middle course and covers the left plateau from the second half of the course. The remaining part of the plateau lies in the Upper Bunten Marl ( Mainhardt Formation ), from which the two upper course sources also arise. The silica sandstone ( Hassberge formation ) already sets in in their two spring blades, which is found on large parts of the slope in the further course of the valley. After the first inflow from the northern Falchen , the valley floor lies in the lower colored marls ( Steigerwald formation ), a little before the inflow of the Irsbachklinge then in the reed sandstone ( Stuttgart formation ). After the Wolfsklinge, the Gipskeuper ( Grabfeld Formation ) begins on the valley floor , into which the Irsbach also flows.

The middle course of the stream roughly follows a fault line running from north to south.

Nature and protected areas

In its long forest section, the Irsbach is a very natural, up to three meters wide brook with a meandering course. Its bed is sometimes cut several meters deep and covered by rubble, elsewhere it shows rocky, flat ground or sandbanks. in some places transverse sleepers have been drawn in, over which the stream falls into pools. In many places there are stratified or seepage springs on the slope.

The upper part of the Irsbach up to the bend in the direction before the lower reaches runs in a narrow and steep, forest-lined ridge, in which the accompanying forest road changes the side of the stream several times. After the wet season, you can often see fresh slides on bare sandy or clay slopes. After the bend and the widening of the valley, the Irsbach flows into a meadow basin on the lower reaches. The majority of this open valley section is located in the Eisbachtal and Irsbachtal nature reserve . The only settlements on its banks are in this area, namely the fulling mill and the Sulzbach estuary.

Individual evidence

LUBW

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

  1. ↑ a b Height according to the contour line image on the topographic map background layer .
  2. ↑ a b Length according to the waterway network layer ( AWGN ) .
  3. ↑ a b Catchment area according to the basic catchment area layer (AWGN) .
  4. ↑ Lake area after the layer standing waters .
  5. ↑ Catchment area measured on the background layer topographic map .
  6. ↑ Height according to the blue lettering on the background layer topographic map .
  7. ↑ Height according to black lettering on the background layer topographic map .
  8. ↑ Landscape protection area according to the relevant layer, nature partially according to the biotope layer .

Other evidence

  1. ↑ a b height according to the measuring table sheet 7025 Untergröningen from 1935 in the Deutsche Fotothek
  2. ↑ All distances measured on the TK25.
  3. ↑ 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)
  4. ↑ 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)
  5. ↑ 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 )

literature

  • Topographic map 1: 25,000 Baden-Württemberg, as single sheet No. 6925 Obersontheim and No. 7025 Sulzbach-Laufen

Web links