Adamsgraben (Neckar)

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Adam's Trench
Data
Water code DE : 23891132
location Kraichgau

Neckar basin

Baden-Württemberg

River system Rhine
Drain over Neckar  → Rhine  → North Sea
source on the western edge of the settlement of Wimpfen
49 ° 13 ′ 30 ″  N , 9 ° 8 ′ 58 ″  E
Source height approx.  226  m above sea level NHN
muzzle at the foot of Wimpfen am Berg below the river bridge from the left in the Neckar Coordinates: 49 ° 13 '50 "  N , 9 ° 10' 0"  E 49 ° 13 '50 "  N , 9 ° 10' 0"  E
Mouth height approx.  142.8  m above sea level NHN
Height difference approx. 83.2 m
Bottom slope approx. 52 ‰
length 1.6 km
Catchment area 1.641 km²

The Adamsgraben is a one and a half kilometer long stream in the urban area of Bad Wimpfen in the Heilbronn district in northern Baden-Württemberg , which flows into the Neckar from the left and west-southwest at the foot of Wimpfen am Berg .

geography

course

The Adamsbach begins its course at about 226  m above sea level. NHN on the western edge of settlement Wimpfen at the confluence of Fleckenstein street in the pipe path . It flows almost to the end in an approximately east-northeast direction. The beginning of the ditch initially runs straight between a row of houses in an elongated field set into the contour of the settlement. He soon runs up to and in an allotment garden that lies between parts of the settlement on the left and right, along a path for a long time, from which small footbridges open up the small plots.

After about half of his way he goes into a parking lot next to the L 1107. Around this point, a second natural and long undeveloped basin runs to the southwest, which also begins on the outskirts of Wimpfen, but today apparently no longer has an open watercourse.

The brook then crosses under the state road called Schiedgraben there , passes on the other side the bulwark tower on the southwest corner of the former city fortifications around the old town of Wimpfen am Berg , there feeds a small pre-pond and then from an open ditch the approximately 5 ares large birch lake , which was once Adamssee and Biersee was named.

Now noticeably up to about 185  m above sea level. Lowered NHN , the valley basin of the Adam's Trench now becomes a steep blade that runs along the southeast flank of the old town. Immediately after the lake, the Adamsgraben crosses under Neutorstrasse and then flows past the building of the former Upper Oil Mill , where it falls a few meters; so he presumably drove the water mill with an overshot wheel.

Immediately afterwards, it enters a hollow again under what is now called Wallstraße and soon afterwards Neuer Weg , which is winding the course of the valley and descends into the Neckar valley at the edge of the brook. In the end there are forest trees on the right slope. Before the eastern spur tip of Wimpfen near the Nuremberg tower, the stream turns left from the road, crosses under the Elsenz Valley Railway, which runs on the left bank, and then flows about 200 meters down the Wimpfen river bridge from the south and at 142.8  m above sea level. NHN from the left into the Neckar , which swings there in the Neckar Valley landscape protection area between Bad Wimpfen and Gundelsheim from west to north.

The Adamsgraben flows after a 1.6 km long run with an average bottom gradient of about 52 ‰ around 83 meters below its origin.

Catchment area

The Adamsgraben has a 1.6 km² catchment area, which , in terms of natural space , is predominantly in the lower area of ​​the Leinbachgäu of the Kraichgau and only with the small area near the mouth from the beginning of the blade in the lower area of ​​the Heilbronn-Wimpfen valley of the Neckar basin . Its greatest height at its western tip at the water tower on the Galgenberg reaches almost 350  m above sea level. NHN - Today (2020) it is mostly built up; Between the Galgenberg and the western border of the urban development there is still around 0.3 km² of arable land, which used to stretch much further east.

In turn, the catchment areas of the following neighboring waters are adjacent:

  • in the northwest the Schafgraben drains over the Erbach and then the brook from the Klinge across from Offenau down into the Neckar;
  • between the mouth of this blade and that of the Adams Trench there are no tributaries to the Neckar in the east;
  • in the southeast, the Morschbach or Mersch, which flow upwards less than 200 m, competes with the Neckar
  • in the south lies the headwaters of the Kimbach , which feeds the Böllinger Bach , an even higher Neckar tributary
  • in the west the uppermost catchment area of ​​the Michelbach borders only briefly , it also runs to the Böllinger Bach.

The entire catchment area is in the urban area of Bad Wimpfen .

geology

The plateau portion of the catchment area in the west, which dominates in terms of area, shows the typical Kraichgau cover with loess sediment from Quaternary deposits. Underneath there is apparently Gipskeuper ( Grabfeld formation ), because at the low hump of the Galgenberg at the western tip it stands right down to the foot of the hill and it also stretches out in western Wimpfen on both sides of Hohenstaufenstrasse. Further east to the Wimpfener Talsporn there is a zone with Lettenkeuper ( Erfurt formation ). The Upper Muschelkalk, which lies underneath in the Mesozoic deposit sequence , then lies as a very narrow strip at the foot of the slope of the Neckar Valley.

There, between the Nuremberg tower of the city fortifications and the railway line, at the foot of the Wimpfen mountain spur, there is also a geotope in the higher Upper Muschelkalk.

See also

Individual evidence

LUBW

Official online waterway map with a suitable section and the layers used here: Course and catchment area of ​​the Adamsgraben
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. Jump up to the Neckar between the locks Kochendorf above and Gundelsheim below.
  3. ↑ Length according to the waterway network layer ( AWGN ) .
  4. ↑ Catchment area according to the basic catchment area layer (AWGN) .
  5. ↑ Lake area after the layer standing waters .
  6. ↑ Protected area according to the relevant layers.
  7. ↑ Geotope according to the relevant layer.

Other evidence

  1. ↑ Josef Schmithüsen : Geographical land survey: The natural space units on sheet 161 Karlsruhe. Federal Institute for Regional Studies, Bad Godesberg 1952. →  Online map (PDF; 5.1 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 )

literature

  • Topographical map 1: 25,000 Baden-Württemberg, as single sheet No. 6720 Bad Rappenau and No. 6721 Bad Friedrichshall

Web links