Little Weisach

from Wikipedia, the free encyclopedia
Kleine Weisach
upper course: Leyerbach
Data
Water code DE : 242896
location Bavaria
River system Rhine
Drain over Aisch  → Regnitz  → Main  → Rhine  → North Sea
origin Pond outlet southwest of Scheinfeld -Neuses
49 ° 42 '12 "  N , 10 ° 29' 48"  O
Source height approx.  421  m above sea level NHN
muzzle near Lonnerstadt in the Aisch coordinates: 49 ° 41 ′ 35 "  N , 10 ° 46 ′ 33"  E 49 ° 41 ′ 35 "  N , 10 ° 46 ′ 33"  E
Mouth height approx.  270  m above sea level NHN
Height difference approx. 151 m
Bottom slope approx. 6.7 ‰
length 22.4 km  with OL Leyerbach
Catchment area 66.87 km²

The Kleine Weisach is a river in the Central Franconian districts of Neustadt an der Aisch-Bad Windsheim and Erlangen-Höchstadt in Bavaria , which after an approximately 22 km long, essentially eastern run at Markt Lonnerstadt in the Central Franconian district of Erlangen-Höchstadt from the left and finally northwest flows into the lower Aisch . Its right upper course to Obertaschendorf is called Leyerbach . At Lonnerstadt, a short right-hand estuary branches off the Aischgraben on the lower reaches .

Above the Little Weisach something opens before Uehlfeld been a Weisach from the left in the Aisch, like the swell height of the treated here "little ones" Weisach is significantly exceeded both the total strand length, the catchment area.

geography

course

The Kleine Weisach flows at about 421  m above sea level. NHN under the name Leyerbach southwest of the village of Neuses in the town of Scheinfeld in the district of Neustadt an der Aisch-Bad Windsheim a pond. South at the site over the Leyerbach flows east and switches on the town boundary in the area of Markt Taschendorf , where, after a forest tightness in the parish of Upper Taschendorf left unstable inflow of two short sides sound experiences. From there it is called Kleine Weisach and runs in the same direction through the main town of Taschendorf, past the Butzenmühle and through the village of Hombeer.

Then she changes to the district of Erlangen-Höchstadt in the area of ​​Markt Vestenbergsgreuth , from which the hamlet of Pretsdorf is first on the left bank, then the Hülsenmühle and the parish village of Kleinweisach . In the following village of Burgweisach the first longer tributary Gründleinsbach flows from the left, then the Oberwinterbach in Dutendorf from the same side. Shortly before Hermersdorf on the right bank, the Sechselbach now runs to the right, which drains the eponymous capital of the municipality. After the Hermersdorfer Mühle and the hamlet of Weickersdorf, which are also on the right, the Kleine Weisach begins a flat arc to the north, on the first half of which it passes through the last village of Frimmersdorf in the market community.

Below the valley plain widens, now there is always at least one side ditch on the side of the Kleine Weisach. About next to the northernmost point of the Laufbogen, the Unterwinterbach, called Weiherlendgraben on the lower course, enters the valley through the village Unterwinterbach from the west-northwest and then unites in the area of ​​Markt Lonnerstadt via such a ditch with the Ailsbach coming from the northwest later the combined tributary flows into the Kleine Weisach opposite the Lonnerstadt village of Fetzelhof from the left.

On the second part of the arch, which again runs somewhat southwards, towards the end of the settlement area Lonnerstadt itself borders on the left bank. At the road bridge out of the market village, the only 0.8 km long Aischgraben goes off to the right; it and the longer left main branch cross under the B 470 in the left Aischaue and then flow one after the other from the left and finally northwest just before and opposite the beyond to the city of Höchstadt an der Aisch belonging Greiendorf at about 270  m above sea level. NHN in the lower Aisch .

The Kleine Weisach flows after a 22.4 km long run with its upper course Leyerbach with an average bed gradient of around 7 ‰ about 151 meters below its origin.

Catchment area

It covers 66.9 km² and has the contour of a wedge that widens slowly to the east, which then narrows abruptly towards the mouth at the easternmost point. Its highest point is on the western tip about 300 meters northwest of the origin on the Seitenbacher Ranken and reaches about 454  m above sea level. NHN . Some other elevations over 400  m above sea level. NHN are all also in the western catchment area. Throughout the territory sandstone is keuper to except only in a band around the lower reaches of the broad Untertal after the last great tributary, where younger Talfüllungen liegenjund on the right mouth spur where it terrace gravel and pulverized limstone somewhat older Quaternary is time.

The northern watershed borders on the catchment area of ​​the Reichen Ebrach , which only flows into the Regnitz receiving it below the Kleine-Weisach receiving stream Aisch ; in the western part the small Teisach competes with the Ebrach tributary Haslach . Behind the southern watershed, the streams all run above the Kleine Teisach to the Aisch, first in the west the Steinach , then the Weisach , which, despite its name, is significantly shorter (11.3 km) and has less catchment area (25.4 km) than the " Little “Weisach.

Because the catchment area is nowhere very wide along the entire course, there are many ridge-close locations on the northern and southern borders, which is why a considerable part of it is forested.

Tributaries

Individual evidence

BayernAtlas ("BA")

Official online waterway map with a suitable section and the layers used here: Course and catchment area of ​​the Kleine Weisach
General introduction without default settings and layers: BayernAtlas of the Bavarian State Government ( notes )

  1. ↑ a b c Height requested on the BayernAtlas (right click).
  2. ↑ Height according to black lettering on the BayernAtlas.
  3. ↑ Geology according to the geological map 1: 500,000 on the BayernAtlas.
  4. ^ Name of Eschbach after a district name on the historical map.

Water directory Bavaria ("GV")

  1. ↑ a b Length according to: List of brook and river areas in Bavaria - Main river area, page 61 of the Bavarian State Office for the Environment, as of 2016 (PDF; 3.3 MB)
  2. ↑ a b catchment area according to: Directory of stream and river areas in Bavaria - Main river area, page 61 of the Bavarian State Office for the Environment, as of 2016 (PDF; 3.3 MB)

literature

Web links