Johannisbach (Aachen)

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Johannisbach
Suylisbach
Johannisbach shortly before the intersection Pottenmühlenweg / Im Johannistal

Johannisbach shortly before the intersection Pottenmühlenweg / Im Johannistal

Data
Water code DE : 2828186
location Aachen , North Rhine-Westphalia , Germany
River system Rhine
Drain over Pau  → Wurm  → Rur  → Maas  → Hollands Diep  → North Sea
River basin district Meuse
source In Aachen
50 ° 45 ′ 35 ″  N , 6 ° 3 ′ 15 ″  E
Source height approx.  219  m above sea level NN
muzzle In the Aachener Peterstraße in the Paubach Coordinates: 50 ° 46 '34 "  N , 6 ° 5' 21"  E 50 ° 46 '34 "  N , 6 ° 5' 21"  E
Mouth height 158  m above sea level NN
Height difference approx. 61 m
Bottom slope approx. 16 ‰
length 3.8 km
Rhoen The older topography of Aachen-Karte.jpg

The Johannisbach (formerly also called Suylisbach ) is one of the Aachener brooks that flow through the historic old town of Aachen . It belongs to the Wurm brook system , which drains the Aachen valley basin.

course

The sources of the Johannisbach are in the southwest of the city, in the meadows between Lütticher Strasse and the Friedrichswald and in the cellar of Gut Blockhaus. From here it flows through pastures and meadows to the northeast. Along the Hanbruch estate, it flows through two rainwater retention basins to be discharged into the city's canal system at the junction Pottenmühlenweg - Im Johannistal.

The further underground course can be read from some street names. From Vaalser Straße the stream flows parallel to Junkerstraße to the Pfaffenturm , further under Johanniterstraße to Lindenplatz. Here, in 1999, part of the stream was "exposed" again as part of the "Ecological City of the Future" project . About half of the water flows above ground in a channel from Lindenplatz along the streets Annuntiatenbach (named after the former Annuntiaten monastery Aachen ) and Augustinerbach (named after the former Augustinian monastery Aachen ) to Pontstrasse . From here the water follows the traffic routes Neupforte, Seilgraben and Komphausbadstraße exclusively underground. Today the Johannisbach joins the Pau and the Paunell under Peterstraße , which flows into the Wurm shortly afterwards. The worm reappears at Europaplatz .

history

The historical course of the Johannisbach largely corresponds to its current course. In its upper reaches, however, it used to deviate further to the left and right. In the Middle Ages, too, it entered the city at the Pfaffenturm, flowed through the Carlsweiher and then ran through the depression northwest of the market hill. Before entering the city, he drove the Junkersmühle located near the Junkerstor and the old slab-belly mill , formerly Segraedt-Mühle , in the area of ​​the Carlsweiher , both of which were of economic importance to the van Houtem / Lochner cloth factory .

In the past, the stream did not run exactly along the Seilgraben, but a little north of it, for example along today's Sandkaulbach road.

Originally the Johannisbach only merged at the Willy-Brandt-Platz, where in the Middle Ages the Pletschmühle , operated by the Amya family and others , stood and today the Kugelbrunnen stands, with the Paunell and a little further towards Kaiserplatz with the Pau. To the north of Kaiserplatz, the combined streams left the medieval city through the water tower and flowed into the Wurm shortly afterwards.

The Johannisbach originally served as a sewer for the medieval city. Between Neutor and Kölnmittelor , the moat in front of the inner city wall was filled with water from the Johannisbach.

During the siege of Aachen in 1248 , when the outer city wall had not yet begun, Wilhelm von Holland had Johannisbach, Pau and Paunell dammed and thereby flooded a large part of the city area to force Aachen to give up.

literature

  • Klaus Bischops, Daniel Gerards: Around Aachen . tape 3 . Meyer & Meyer Verlag, 2007, ISBN 978-3-89899-194-0 .
  • Carl Rhoen : The older topography of Aachen . Verlag der Cremersche Buchhandlung, Aachen 1891. ( Online version, pdf, 2.84 MB )
  • Christof Peter, Franz Meiers, Gabi Heidner, Gabi Hermsdorf, Hartmut Welters, Henry Beierlorzer and Rita Caesar, Spurensicherung - Walks along the Aachen brooks, February 1983, page 8 ff. ("Der Johannisbach"), library of the Burtscheid Society for History and Present .

Individual evidence

  1. ↑ a b German basic map 1: 5000
  2. ↑ Topographical Information Management, Cologne District Government, Department GEObasis NRW ( Notes )
  3. ^ The Johannisbach II Ecology Center Aachen, accessed on June 19, 2017 .

Web links

  • The Johannisbach. In: The Aachen brooks. Ecology Center Aachen eV, accessed on May 10, 2009 .