Krebsbach (Katzenbach)
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Krebsbach dominant upper course Mühlbach |
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 View down the stream to the Krebsbach in Hemmendorf , on the left the castle, on the right the bridge on Johanniterstraße |
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| Data | ||
| Water code | DE : 2381542 | |
| location |
Middle Alb foreland
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| River system | Rhine | |
| Drain over | Katzenbach → Neckar → Rhine → North Sea | |
| origin |
Confluence of the Mühlbach and Riedbach to the Krebsbach: after the Bodelshausen sewage treatment plant 48 ° 24 ′ 17 ″ N , 8 ° 57 ′ 30 ″ E Source of the Mühlbach: east of Hechingen- Sickingen 48 ° 22 ′ 43 ″ N , 8 ° 58 ′ 54 ″ O |
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| Source height | approx. 530 m above sea level NHN source Mühlbach |
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| muzzle | About 1.2 km west of Rottenburg- Dettingen at the end of its short Aischbach section in the Katzenbach Coordinates: 48 ° 26 '8 " N , 8 ° 55' 9" E 48 ° 26 '8 " N , 8 ° 55' 9 ″ O |
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| Mouth height | approx. 405 m above sea level NHN | |
| Height difference |
for the strand millstream Cancer Bach : 125 m |
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| Bottom slope |
for the Mühlbach – Krebsbach line: 11 ‰ |
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| length | 11.4 km with the upper Mühlbach |
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| Catchment area | 23.317 km² | |
| Residents in the catchment area | less than 8000 | |
The Krebsbach is a brook in central Baden-Wuerttemberg with a north-westerly direction throughout, which is over 6 km long on its name section and together with its dominant right upper course Mühlbach over 11 km. It flows west of the village of Dettingen in the city of Rottenburg am Neckar in the Tübingen district from the left into the Katzenbach , of which it is the largest tributary. It first crosses the large Rammert forest , its meadow valley in it is called Schellentäle or Hemmendorfer Tal .
geography
Upper Mühlbach
The Mühlbach rises at about 530 m above sea level. NHN about half a kilometer east of the village of Sickingen in the city of Hechingen next to the K 7106 running from there to the southeastern edge of Bodelshausen (from the district boundary K 6932). Accompanied by the road on the right and densely growing vegetation on the bank, the brook runs north-east in a flat, damp hollow and after a good half a kilometer it crosses the municipal boundary to Bodelshausen, along the south-eastern edge of the settlement it runs for the remaining few hundred meters up to its first Running kilometers maintains its direction to the confluence with the Butzensee .
It flows out of the lake approximately westwards and then runs in and on the edge of Bodelshausen, which has expanded strongly on this side, mostly twisted in a generally approximately northwestern direction towards the old town center, after which it soon reaches the other end of the village. Four tributaries flow into it from the left, the last two of which, the Ghaibach and the Höllbach , are about one and a half and two and a half kilometers in length, respectively. After the village, it continues its course in the now deeper valley basin in the same north-westerly direction to the edge of the forest area Rammert , in whose south-western part Rauher Rammert it then enters west-north-west. After a last good half a kilometer, finally past the Bodelshausen sewage treatment plant, it runs 4.9 km below its source with the much smaller left Krebsbach upper course Riedbach at about 447 m above sea level. NHN to the Krebsbach together. The Mühlbach has a catchment area of around 7.5 km².
Upper Riedbach
The Riedbach runs entirely in the forest of the Rauhen Rammerts. It rises at about 538 m above sea level. NHN on the northern slope of the Langenharts very close to the edge of the forest to the corridor around the southeastern Bodelshausen hamlet of Oberhausen and runs somewhat winding for about 1.4 km north-west to its confluence with the Mühlbach and has a catchment area of only 0.8 km² mostly also in the forest.
course
The cancer Bach continues the west-north-west of its confluence direction of its larger upper reaches mill stream. It passes a group of lakes on the left bank in the initially still narrow floodplain through which it flows in small meadow meanders and takes in a few small tributaries from the left and right. Then the floodplain widens strongly and it flows in a straightened course with only sporadic tree vegetation on the bank after turning away from the forest edge. The following larger tributaries from the forest, the Zimnerbach with almost two and a half kilometers, the Holzwiesenbach with less than two kilometers and the Harbach with three quarters of a kilometer, all come from the right.
Around the inlet to the last one, its Auental ends in Rammert, the forest mountains on the right and left drop down to a corridor level. It runs through a usually waterless retention basin that was created in the early 2010s and now runs northwest towards the village of Hemmendorf in the city of Rottenburg am Neckar . The only larger tributary that follows, the one and three-quarters kilometer long and also left Weiherbach, flows into the southern soft area of the village, arises near Hirrlingen and runs quite flat and for the first time again on the whole route in an open field.
After crossing Hemmendorf there is willow bushes on the bank, but it soon stops. Then the Krebsbach bends in front of the 466.5 m above sea level. NHN high single forest crest Eichenberg the level on northern course. It now runs again in a valley basin that only half a kilometer before the mouth begins to form half a loop to the left. In this the stream has partly rocky banks made of shell limestone.
The Krebsbach flows at its end at about 405 m above sea level. NHN about 6.5 km downstream of its confluence in Rammert and about 11.4 km below the source of his great upper reaches Mühlbach from the left, and finally south to the east of here coming and just last Aischbach called Katzenbach , who then continues to flow north. The Krebsbach is by far the largest tributary of the Katzenbach. Its catchment area significantly exceeds that of the Katzenbach up to the tributary.
The Krebsbach flows about 125 meters above sea level below the source of the Mühlbach and, together with this, has a mean bed gradient of about 11 ‰.
Catchment area
The Krebsbach has a 23.3 km² large catchment area, which extends from a 535.9 m above sea level. NHN high flurkuppe at the farms Butzenwasen von Hechingen , which is about a kilometer east of the Mühlbach origin, extends about eight and a half kilometers to the northwest to the mouth. At right angles to it, it reaches a maximum width of four kilometers. It has a share in three natural areas ; the upper catchment area in the southeast in Bodelshausen belongs to the lower area of the Steinlach of the Middle Alb foreland , the middle one lies in the almost entirely forested sub- area of Rammert von Schönbuch and Glemswald , the north-western area near the mouth is part of the lower area of Eyach-Gäuplatten of the Upper Gau , a predominantly open landscape again. The highest point is near the southern border on the western edge of Hechingen- Bechtoldsweiler and reaches 535.9 m above sea level. NHN .
The catchment areas of the following neighboring waters are adjacent in turn:
- Beyond the entire north-eastern watershed, left tributaries flow to the Mühlbach-Krebsbach-Strand, which runs almost parallel here, from its main upper reaches Beurenbach and Katzenbach , into which the Krebsbach flows;
- on only a short stretch of the eastern watershed, the Tannbach drains the other side to the Steinlach ;
- behind the southwestern and finally western watershed, streams flow from the right to the Starzel .
Like the Katzenbach, both large neighboring bodies of water are tributaries of the upper Neckar .
On the Mühlbach there is only the eponymous village of the municipality of Bodelshausen , on the Krebsbach itself only the village of Hemmendorf of the city of Rottenburg am Neckar . In addition, parts of the villages of Sickingen and Bechtoldsweiler, which belong to the city of Hechingen, are located on the southern edge in the upper catchment area , as well as the Bodelshausen hamlet of Oberhausen and its Aussiedlerhof Birkenhof . The middle catchment area in Rammert is completely free of settlement, in the lower one there is no other place apart from Hemmendorf. In addition to the municipalities already mentioned, the municipality of Hirrlingen also has a share in the catchment area, a large one in Rammert, a smaller one on the Eyach-Gäuplatten, which only extends near the mouth of the river to the west bank of the Krebsbach. With the exception of Hechingen in the Zollernalb district , all municipalities belong to the Tübingen district .
Tributaries and lakes
List of tributaries and 
lakes 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.
Selection.
Origin of the Krebsbach at about 447 m above sea level. NHN after the Bodelshausen sewage treatment plant shortly before a chain of ponds in the still narrow floodplain in the beginning of the Rammert from the confluence of its two upper courses.
- Mühlbach , right and southeastern upper reaches, 4.9 km and approx. 7.5 km². Arises at about 530 m above sea level. NHN east of Hechingen - Sickingen on the K 7106 to Bodelshausen. The Mühlbach initially flows northeast.
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Flows through to about 501 m above sea level. NHN the Butzensee on the eastern edge of the settlement of Bodelshausen, 0.9 ha.
Thereafter, the Mühlbach flows to the northwest, to the lower edge of the village of Bodelshausen verdolt, and takes in two nameless, also verdolte left tributaries from the local area. -
Ghaibach , from the left and southwest to about 480 m above sea level. NHN near the lower end of Goethestrasse, 1.5 km and approx. 0.3 km². Arises at about 512 m above sea level. NHN in the commercial area around Höfelstrasse. Mostly or completely condemned.
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Passed at about 495 m above sea level. NHN two ponds to the left of the course on Marc-Cain-Allee, approx. 0.1 ha and 0.1 ha.
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- Höllbach , from the left and west-southwest to over 470 m above sea level. NHN last of all verdolt at the Burghof von Bodelshausen, 2.4 km and 1.3 km². Arises at about 553 m above sea level. NHN between Hechingen- Bechtoldsweiler in the south and its sports field. Mostly open run in the hallway.
- (Bach vom Stockachrain ), from the right and north to around 450 m above sea level. NHN opposite the Bodelshausen sewage treatment plant, 0.3 km and approx. 0.2 km². Arises at about 485 m above sea level. NHN . Runs completely in the Rammert.
- Riedbach , left and southwestern upper reaches, 1.6 km and approx. 0.8 km². Arises at about 538 m above sea level. NHN at the northern drop of the Langenhart ( 561 m above sea level ) and northwest of Bodelshausen- Oberhausen . Runs completely in the Rammert.
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Happened immediately after the confluence at heights of 445 m above sea level. NHN a row of ponds to the left of the course, a total of 0.9 ha.
- (Bach vom Nägelesbrückle), from the right and north-northeast to a little over 440 m above sea level. NHN , 0.9 km and approx. 0.8 km². Arises at a little over 480 m above sea level. NHN in the railing from the Nägelesbrückle southwest of the Sau ridge ( 540.6 m above sea level ).
- Russbach , from the right and northwest to just under 439.5 m above sea level. NHN , 0.4 km and approx. 0.5 km². Arises at almost 460 m above sea level. NHN in the forest area of Russpach (!). A longer north-north-west upper reaches is unstable.
- (Stream from the leaf spoon ), from the left and south to about 439 m above sea level. NHN shortly after the previous one, 0.6 km and below 0.2 km². Arises at about 485 m above sea level. NHN on the northern slope of the Hohenstöffels ( 538.9 m above sea level ).
After this inflow, the meadow meadow of the Krebsbach expands significantly. -
Zimmerbach , from the left to about 432 m above sea level. NHN opposite a water reservoir on the lower opposite slope, 2.6 km and 2.5 km². Arises at about 55 m above sea level. NHN northwest of Bechtoldsweiler am Flurrand to Waldgewann Seigen .
- Small Stöffelbach , from the right and east to about 460 m above sea level. NHN , 0.4 km and approx. 0.3 km². Rises at 479.6 m above sea level. NHN south of the Hohenszöffels in the forest of Kleiner Stöffel .
- Hauser-Hau-Bach , from the left and southwest at 454 m above sea level. NHN a few hundred meters before the exit into the wide valley floor, 0.7 km and about 0.7 km². Arises at almost 500 m above sea level. NHN long two each 0.5-0.6 km headwaters, both at 565- 570 m above sea level. NHN at Hauser Hau , the northern fall of the Hohnwacht ( 570 m above sea level ).
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Holzwiesenbach , from the left and southwest to about 427 m above sea level. NHN , 1.8 km and 2.04 km². Arises at about 470 m above sea level. NHN at the Dachsbauhalde .
- (Other upper reaches of the Holzwiesenbach), from the left and southwest to about 442 m above sea level. NHN shortly before the end of the forest under Gerbenhau , 1.0 km and approx. 1.0 km². Arises at about 475 m above sea level. NHN in the Zieglers Graben forest area .
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Harbach , from the left and southwest to about 426 m above sea level. NHN just before Rottenburg- Hemmendorf , 0.7 km and 2.1 km². Arises at about 515 m above sea level. NHN in Waldgewann Langer First .
Around this tributary the valley ends in the Rammert and the Krebsbach, which now flows more and more northerly, crosses into an agricultural plain. - Hemmendorf flood retention basin ⊙ . Less than 100 meters after the Harbach tributary, the Krebsbach has been running through a flood retention basin since 2012 with a 7.4 m high earth dam, which is usually dry, but can hold back up to 230,000 m³ of water when there is a strong inflow. The runoff is controlled and a dirt road runs along the top of the dam.
- Weiherbach , from the left and southwest to about 423 m above sea level. NHN on the upper outskirts of Hemmendorf, 1.7 km and 1.0 km². Arises at about 451 m above sea level. NHN east of Hirrlingen not far from the sports field under the Schmalberg .
Mouth of the Krebsbach from the left and finally south to about 405 m above sea level. NHN west of Rottenburg- Dettingen in the lower Katzenbach . The Krebsbach itself is 6.5 km long , together with a dominant right upper course Mühlbach even 11.4 km long and has a 23.3 km² catchment area, which exceeds the only 20.4 km² catchment area of the Katzenbach itself up to the inflow.
geology
The upper course of the Mühlbach rises in the lowest Opalinus Clay formation of the Central Jurassic . On its initially north-easterly course up to the Butzensee along the south-eastern edge of Bodelshausen's settlement, it soon follows a fault line that offsets the Opalinus Clay on the deep floe on the right against the Jurensis marl or the Posidonia schist formation on the high floe on the left. In the lake, it turns to the northwest and then passes through the other layers of the Lower Jurassic in the local area - the Amaltheenton , Numismalis marl , Obtususton , Arietenkalk , Angulate sandstone and finally the Psilonotenton formation . The uppermost layer of the Mittelkeuper , the tuber marl ( Trossingen formation ), in which the Mühlbach runs up to the beginning of the Rammert, begins in the center of the village . In this, on the higher valley flanks and on the heights - below a few peaks above in the tuberous marl - the Stubensandstein ( Löwenstein Formation ) stands, while on the lower slopes soon Obere Bunte Margel ( Mainhardt Formation ), Kieselsandstein ( Hassberge Formation ) and Lower Spread out colored marl ( Steigerwald formation ). Little after the confluence of cancer Bach starts first at Auenrand only narrow thread of Schilfsandstein ( Stuttgart Formation ), which later in the Schellentäles extended only a few places to small Spornverebnungsflächen while including then soon the Gipskeuper ( grave field formation ) crosses out . This lowest middle Keuperschicht ends after the Rammert in the local area of Hemmendorf, where it is replaced by the Lettenkeuper ( Erfurt Formation ) as the lowest Mesozoic layer. About half a kilometer before the mouth there is Upper Muschelkalk on the valley floor , the brook runs here in the Upper and Middle Tael troughs in half of the loops typical of this layer, sometimes the limestone rock forms the bank.
With the onset of the Mittelkeuper in the center of Bodelshausen, the main stream of the stream, still called Mühlbach, begins to run in a Holocene floodplain loam, which on both sides of the Krebsbach expands to a width of up to half a kilometer after the stream flows out of the leaf spoon in the middle Rammert. Already before Hemmendorf it becomes narrower again and even more after the place in the very narrow, but not yet very deeply cut new valley basin.
In the Rammert there is loess sediment from a more recent age on some valley flanks and on some heights . This layer also predominantly covers the Lettenkeuper and the Muschelkalk in the catchment area below Hemmendorf.
Nature and protected areas
On its way in the Lower Jurassic to the center of Bodelshausen, the Mühlbach is classified as rich in coarse material , then, like the Krebsbach, until it enters the Muschelkalk, it is classified as a carbonate low mountain stream rich in fine material . The subsequent short section of the Krebsbach is then again rich in coarse material.
Its catchment area in the Rammert comprises the larger part of the Rauher Rammert landscape protection area , the smaller of which continues beyond the northern watershed to the course of the Katzenbach.
To the east of Hemmendorf, under the western spurs of Herrenhäule ( 529.3 m above sea level ) and Köpfle ( 528 m above sea level ) of the Rammert, there is almost half a square kilometer of the Vollmershalde nature reserve . It extends in a curve from the right edge of the outgoing Schellentäles to a northwest slope of the Rammert to the plane lying in front of some Hangewanne with the central Vollmer heap on which previously wine was grown. Today there are dry stone walls, poor grassland and many loosely standing fruit trees.
Traffic routes
From the Butzensee, the L 389, which branches off from the B 27, follows the stream from Mühlbach and Krebsbach to the confluence at a maximum of 200 meters, but mostly much less. On the short stretch before that, the K 7106 / district border K 6932, the Sigmaringen – Tübingen railway line and the main road run alongside the Mühlbach.
Individual evidence
LUBW
Official online waterway map with a suitable section and the layers used here: Course and catchment area of the Krebsbach
General introduction without default settings and layers: State Institute for the Environment Baden-Württemberg (LUBW) ( notes )
- ↑ a b c d e Height according to the contour line image on the background layer topographic map .
- ↑ a b c Length according to the waterway network layer ( AWGN ) .
- ↑ a b Catchment area summed up from the sub-catchment areas according to the basic catchment area layer (AWGN) .
- ↑ For straightening, compare the current run on the background layer topographic map with that on the measuring table sheet 7519 Rottenburg (Württ.) Bietenhausen (Preuss.) From 1909
- ↑ a b c d e f g h i Height according to black lettering on the background layer topographic map .
- ↑ Lake area after the layer standing waters .
- ↑ Catchment area according to the basic catchment area layer (AWGN) .
- ↑ Catchment area summed up from the sub-catchment areas according to the basic catchment area layer (AWGN) and the remainder measured on the background layer topographic map up to the Riedbach.
- ↑ a b c d e f g h i Catchment area measured on the background layer topographic map .
- ↑ The area of the lake measured on the background layer topographic map .
- ↑ a b c Height according to the blue lettering on the background layer of the topographic map .
- ↑ Name of the Zummerbach tributaries according to the corresponding layers of the water network (AWGN) and the name of the water body . Since the respective original tubs are called Kleiner Stöffelbach and Hauser Hau , although in the first case the tub could be named after the body of water, at least in the second case we avoid the hypal situation and allow ourselves the blocked, orthographically correct spelling Hauser-Hau-Bach .
- ↑ Length measured on the background layer topographic map .
- ↑ Flood retention basin after the dam layer .
- ↑ The fact that the last section of the stream and valley lies in the Muschelkalk does not appear from the geological map, probably due to the extensive loess sediment overlay, the narrowness of the valley channel and the inevitable generalization. See the layer Biotope .
- ↑ River type according to the relevant layer.
- ↑ Protected areas according to the relevant layers, nature partly according to the biotope layer .
Other evidence
- ^ A b Friedrich Huttenlocher : Geographical land survey: The natural space units on sheet 178 Sigmaringen. Federal Institute for Regional Studies, Bad Godesberg 1959. → Online map (PDF; 4.3 MB)
- ↑ 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. 7519 Rottenburg am Neckar and No. 7619 Hechingen
Web links
- Map of the course and catchment area of the Krebsbach on: State Institute for the Environment Baden-Württemberg (LUBW) ( information )
- Measuring table sheets in the Deutsche Fotothek :
- 7519 Rottenburg (Württ.) Bietenhausen (Preuss.) From 1909
- 7619 Hechingen / Bodelshausen from 1910