Köttelbach (Dhünn)

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Köttelbach
Data
Water code DE : 27368798
location Germany
River system Rhine
Drain over Dhünn  → Wupper  → Rhine  → North Sea
source in Leverkusen - Lützenkirchen
51 ° 3 ′ 37 ″  N , 7 ° 3 ′ 4 ″  E
Source height approx.  91  m above sea level NHN
muzzle in Leverkusen- Alkenrath in the Dhünn coordinates: 51 ° 2 '28 "  N , 7 ° 0' 49"  E 51 ° 2 '28 "  N , 7 ° 0' 49"  E
Mouth height approx.  47  m
Height difference approx. 44 m
Bottom slope approx. 11 ‰
length 3.9 km
Catchment area 3.667 km²
Discharge
A Eo : 3.667 km²
at the mouth 		MNQ
MQ
Mq
 		4.75 l / s
45.71 l / s
12.5 l / (s km²)

The Köttelbach (also "Köttelsbach") is a 4 km long orographically right and northeastern tributary of the Dhünn .

geography

course

The Köttelbach rises in Leverkusen - Lützenkirchen near the sports field. It flows, partly also underground, in a south-westerly direction, its main flow direction, which it essentially maintains up to its mouth. On the outskirts he takes up the Holzer Bach . In Quettingen the stream flows through the Bürgerbusch forest . To the east of Jakob-Fröhlen-Strasse it is fed by the small Wiesenbach and shortly afterwards by the Mönchsbach and Blankenburger Bach . The Köttelbach now flows through the Fixheide . A little later, it is strengthened by the Landsbergbach and crosses under Schlebuscher Strasse and the embankment of the Mülheim-Speldorf-Troisdorf freight train route . It flows past the small mountain lake , crosses under the A 1 motorway and joins the Dhünn in Alkenrath near the tracks of the Opladen-Cologne railway line .

Tributaries

The tributaries of the Köttelbach include (viewed downstream)

  • Holzer Bach ( left ), 0.709 km
  • Wiesenbach ( right ), 0.143 km
  • Mönchsbach ( right ), 0.395 km
  • Blankenburger Bach ( left) , 1.629 km
  • Landsbergbach (left), 1.971 km

River system Dhünn

nature and environment

pollution

In the 2001 water quality report of the State Environment Agency of North Rhine-Westphalia , the Köttelbach is classified as critically polluted (quality class II-III).

biosphere

The Bürgerbusch , a wooded area in Leverkusen, is a rich refuge for numerous different animal and plant species.

Individual evidence

  1. ↑ Topographical Information Management, Cologne District Government, Department GEObasis NRW ( Notes )
  2. ^ German basic map 1: 5000
  3. ↑ a b river basin geographic information system of Wupperverbandes
  4. ↑ Water directory of the State Office for Nature, Environment and Consumer Protection NRW 2010 (XLS; 4.67 MB) ( Notes )
  5. ↑ Specialized information system ELWAS, Ministry for Climate Protection, Environment, Agriculture, Nature and Consumer Protection NRW ( information )
  6. ↑ Modeled discharge values according to the specialist information system ELWAS, Ministry for Climate Protection, Environment, Agriculture, Nature and Consumer Protection NRW ( notes )
  7. ↑ State Environment Agency North Rhine-Westphalia Water Quality Report 2001 (PDF; 221 kB)