Duffesbach

Below efferens

The Duffesbach reached the only creek in the bay of Cologne in Cologne, the Rhine. This is because he had to serve the medieval Cologne guilds and commercial enterprises as a follow - flowing waters of the Roman period constructed by hydroelectric engineering Roman aqueduct from the Hürther valley in an artificial stream bed. This, too, is unique. Prior to this he seeped into the gravel near the level of the Lower Rhine Middle Terrace between Kalscheuren and the military ring, as deposits ( colluvium ) prove there and missing colluvium at the recent Bach route.

Bach name

The creek had different names in earlier times. In Cologne, he was mostly - he was the only creek far and wide - only the brook. The stretch of road that accompanied the creek in Cologne is, as a whole, the Cologne streams. He was mostly Hürther Bach Before Cologne. The name Duffesbach is unclear in its meaning. The interpretation of trials Tuff- mill or Duffes / dovecot give no real sense.

Swell

The sources of the stream are in the Ville in Knapsack. Three source streams, from the Kranzmaar and northwest ( Hürther Bach) and southeast of Knapsack Coming ( Knapsack Bach), united above the Hürther Talmuhle. This source horizon is largely changed by lignite mining in the Ville and fallen dry and reshaped for the most part by the Knapsack industry. The creek begins today below the wastewater treatment plant of the Chemical Park near the former holding point of where she was formerly running route of the black car. Most of the creek water now flows from pipes that drain the site of the chemical park. Other sources (jumps ) and smaller flume (22 ) from the many - Broich of Hürther Tales are listed in a document from 1773. They were formerly taken to improve water management and introduced into the stream. Despite the short run, the Ville streams were relatively productive, because the ground water is accumulated on the footwall clay, saved the over -bearing lignite water and Cologne and the Ville- plaice are tilted to the northeast.

Stream

Austretend From the Hürther valley, the creek is pivoted at right angles to the west towards the old castle Hermülheim and traversed across its plain Riedel Theresienhöhe, formerly piped into a brick open bed through the Kirch-/Severinusstraße today. In bad weather he often spilled out again through the Luxembourg road. Again and again had to be repaired the bed there. From the castle it flows straight and open parallel to the former aqueduct by Efferen to ( in the piped creek road ) to Cologne. Below efferens he took before the Stotzheimer creek ( headwaters: Born Bach also Burbach Bach) as a single tributary on which is now led by the Cologne edge channel. Also from Duffesbach water is discharged during heavy rain or with greater water flow in the edge channel. He reached Cologne on the highway. In the borough of Lindenthal it flows channeled under the Luxembourg road. At the White House he filled the pond formerly the manor. Entrance to the medieval city was Bachtor. From there it flows open in medieval times, today channeled past the old Roman wall on the felts trench ( in the Middle Ages multiple branches ) into the Rhine.

Use

Alone on jetzigem Hürther area there used to be seven mills in Cologne just before the mouth then the malt mill. In this case, no actual mill ponds were created. Some of the water was just accumulated in mill creek itself. All mills could grind only when the upper mills not dammed the water. Besides the malt mill grinding cotta had a special usage in Efferen. Before grinding the Lowenmühle was used for the processing of tanbark. The mills are now living on only in street names. The lords and landowners on stream used the creek water to fill the castle pond. This they were allowed by contract with the City of Cologne only on Sunday, when the water was not used for the Cologne trade. This commercial is reflected today in the names of the streets in the course of road train Cologne streams down.

A contemporary use of Duffesbaches is made ​​possible by the expulsion of the still open riparian zones as green space. Renaturation such as the Pulheimer Bach appears questionable, since the creek from Hermülheim never had a natural river bed. A restoration of the upper course is hardly possible by the use of the narrow valley as the railway line of the black car.

To maintain the stream and its banks and for the removal of impurities of Duffesbachverband was founded in 2012, in the next to the city Hürth also industrial factories InfraServ Knapsack, RWE Power and the ports and freight Köln AG are involved. Their precursors were the pollution control and drainage Cooperative for the Duffesbach and Duffesbachgenossenschaft.

Restoration Hürther Thalmühle (1897 ) Recent mill use (see the chimney of the steam engine ).

German Herrnmühle around 1909, named for Hermülheim.

Channeled Duffesbach, limit Efferen / Cologne.

Outflow of Duffesbach in Cologne edge channel left.

Dry Fallen Duffesbach, whose water flows earlier in the edge channel.