Onolzbach
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Onolzbach rarer: Onoldsbach |
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| Data | ||
| Water code | DE : 242112 | |
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Swiss franc amount
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| River system | Rhine | |
| Drain over | Franconian Rezat → Rednitz → Regnitz → Main → Rhine → North Sea | |
| source | approx. 1 km northwest of Leutershausen - Hinterholz 49 ° 20 ′ 2 ″ N , 10 ° 27 ′ 25 ″ E |
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| Source height | approx. 511 m above sea level NHN | |
| muzzle | near the Ansbach residence from the right into the Franconian Rezat Coordinates: 49 ° 18 ′ 10 ″ N , 10 ° 34 ′ 39 ″ E 49 ° 18 ′ 10 ″ N , 10 ° 34 ′ 39 ″ E |
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| Mouth height | approx. 402 m above sea level NHN | |
| Height difference | approx. 109 m | |
| Bottom slope | approx. 9.8 ‰ | |
| length | 11.1 km | |
| Catchment area | 26.03 km² | |
The Onolzbach (rarely also Onoldsbach ) is an 11 km long brook in the Bavarian administrative district of Middle Franconia , which flows from the right into the Upper Franconian Rezat after a roughly east-south-east run in the middle of the independent city of Ansbach .
Surname
The brook was first mentioned in a document in 786 as "Onoldisbach". The defining word of this compound is "Onold". A person with that name had built a settlement there. The pronunciation of the Bach name and its spelling has remained almost unchanged to this day, while the u. a. The town that emerged from this settlement has been called "Ansbach" since the 18th century.
geography
Headwaters
The longer left main stream source stream of the Onolzbach arises in the Hirschgarten forest about one kilometer northwest of the center of the village of Hinterholz in the small town of Leutershausen in the district of Ansbach at about 511 m above sea level. NHN near a forest path leading from the village of Oberramstadt to the west . At the beginning almost eastwards it flows through the upper one after a good 150 meters and after about the same distance further down to about 503 m above sea level. NHN the lower animal pond. After that, the community boundary from Leutershausen to Lehrberg accompanies him on his now east-south-east course, mostly in the open corridor or on its edge. Shortly before it joins the right source brook, it receives an inflow from the right from a few short outflows from hillside sources at 480 to a little below 460 m above sea level. NHN .
The shorter right source stream arises at 498 m above sea level. NHN on the eastern edge of the village of Hinterholz and flows continuously to the east. Its course first follows a field path, is then partially bumped and enters the forest in a corridor, from there it receives inflow from several sources, including - already in the forest and close to the confluence with its left counterpart - from the Gumbertusbrunnen, which appears about 480 m above sea level NHN rises left on the slope. After exiting the forest again, it unites at about 452 m above sea level. NHN with the other source stream to the Onolzbach.
course
The Onolzbach immediately crosses into the area of the Ansbach district of Schalkhausen , on which it now remains for the greater part of its now south-eastern course. Below the Naturfreundehaus Gumbertushütte on the noticeably steep and nearby left slope, he passes the fulling mill on the right bank, after which it flows from the right at 436 m above sea level. NHN the Pfaffengraben . Further down the valley it feeds a pond on the right and then immediately touches Neudorf on this side , from which a first road to Steinersdorf crosses the brook on the left edge. Then a winding course branches off from the now straight trench in the valley line, from which, shortly before reunification, a trench runs to the right to the Neudorfer mill and feeds a tiny pond.
After the mill, the 53-hectare Scheerweiher nature reserve begins near Schalkhausen , and almost everywhere in the valley there is a wetland area crossed by side ditches. The stream itself is divided into up to three courses and runs through or passes the series of Scheerweiher ponds that give it its name , the last and by far the largest at Scheermühle at around 418 m above sea level. NHN is also fed from the west by the Hohenmühlbach . The nature reserve ends below the dam, and the strands are reunited. The Nuremberg – Crailsheim railway line and the St 2246 state road now pull from the side valley on the north-western edge of Schalkhausen into the valley. The railway line changes immediately to the left foot of the slope, while parallel to it the Onolzbach, accompanied by the state road, runs on an increasingly easterly course through the center of Schalkhausen.
After leaving the residential area of Schalkhausen, another Mühlbach branches off from the Onolzbach on the left , after which the brook itself joins the Hengstbach at a very acute angle from the village from the right and west . Only after the two parallel runs have completely passed the Bocksberg settlement above the railway line on the left slope do they reunite shortly before the Hohenzollernring , which stretches to the west and which the St 1066 makes around the central urban area of Ansbach. Down these streets, the Fürstengraben flows in from the west-south-west .
The Onolzbach, which now runs eastwards, crosses under the fork of the railway lines from Würzburg and Crailsheim in the urban area . Shortly before the promenade of the former residential town, it disappears in a vault in the underground, where the Dombach , which is also rotten here , the last and longest of the tributary streams, flows in from the right and south-west. The route of the Onolzbach follows under this boulevard its slight left curve around the residence and then flows under its bridge over this river to Residenzstrasse from the right and at about 402 m above sea level. NHN in the Upper Franconian Rezat .
The Onolzbach falls on its entire course with a left upper course of 11.1 km in length with a mean bottom gradient of about 10 ‰ by about 109 meters.
Catchment area
The Onolzbach drains a catchment area of 26 km² east-south-east to the upper Franconian Rezat . It has roughly the shape of a right triangle, with a more acute cathetus angle slightly above the source of the main strand, the right angle slightly north of Dautenwinds and the less acute cathetus angle at the mouth. The hypotenuse on the north-northeast side is about 10 km long, the small cathetus almost 5 km.
In it, Onolzbach flows very close to the left, north-northeastern watershed, without any significant left tributary. At its upper end, a little above the source on the west-northwest tip of the catchment area, lies at about 521 m above sea level. NHN highest point near the summit of the wooded Oberramstadter Horn , which carries a radio mast ; the watershed on both sides is often above 490 m above sea level elsewhere . NHN and mostly over 480 m above sea level. NHN .
The Onolzbach receiving water Fränkische Rezat flows very close to the north-northeastern watershed , which is why the Hürbeler Bach is a reasonably large direct competitor only behind the northern border of the Onolzbach catchment area . Behind the short south-east border some streams and its own upper course drain to the Silberbach , an inlet of the Franconian Rezat below the Onolzbach. The southwestern watershed is part of the European main watershed between the river system of the Rhine tributary Main on this side and the Altmühl running to the Danube on the other side, which on this section from the border takes up its left tributaries from the Schreinermühlbach up to the Kümmelbach .
Natural spaces
The catchment area of the upper part Onolzbachs south to the valley axis of High millstream the subspace Colmberger heights of the natural space Frankenhohe on, then both sides of the lower course the means Fränkischen pool .
geology
The course and catchment area of the Onolzbach are in the Mittelkeuper , the higher elevations in the Sandstone Keuper , the lower ones in the Gipskeuper ( grave field formation ).
literature
- Elisabeth Fechter: The place names of the district of Ansbach . Inaugural dissertation. Erlangen 1955, DNB 480570132 , p. 39-41 .
Individual evidence
BA
Official topographic online map with a suitable section: Course and catchment area of the Onolzbach
General introduction without default settings and layers: BayernAtlas of the Bavarian State Government ( notes )
- ↑ a b c d e f g h i Height queried (by right-clicking).
- ↑ Height according to the blue lettering on the background layer.
- ↑ Geology according to the switchable layer geological map 1: 500,000 .
Other individual references and comments
- ↑ a b On the usual maps you only find the form of the name Onol z bach , also on the historical map of the BayernAtlass, which dates from the 19th century, with the addition of the word Holzbach . In the Bavarian waters Directory and based on the same data base water official map of the creek on the other hand as Onol ds bach entered. However, this last form of name can be found on the website of the city of Ansbach except in a historical name of origin only in the perhaps historicizing name of a concert series, which can also be found under the other name - cf. Finds "Onoldsbach" ( Memento of the original from September 23, 2015 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. - while otherwise only the form Onolzbach - Finds "Onolzbach" ( memento of the original from 23 September 2015 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. - is used, which is also used in a street name Am Onolzbach .
- ↑ Length according to the list of brook and river areas in Bavaria - Main river area, page 36 of the Bavarian State Office for the Environment, as of 2016 (PDF; 3.3 MB).
- ↑ a b Catchment area according to the list of brook and river areas in Bavaria - Main river area, page 36 of the Bavarian State Office for the Environment, as of 2016 (PDF; 3.3 MB).
- ↑ E. Fechter, p. 39.
- ↑ Nature reserve 32 - Scheerweiher area near Schalkhausen, City of Ansbach
- ^ Franz Tichy : Geographical Land Survey: The natural spatial units on sheet 163 Nuremberg. Federal Institute for Regional Studies, Bad Godesberg 1973. → Online map (PDF; 4.0 MB)
Web links
- Course and catchment area of the Onolzbach on: BayernAtlas of the Bavarian State Government ( information )
- Main line and catchment area of the Onolzbach on: Map service water management, FGN Bavarian State Office for the Environment ( information )