Naafbach

Naafbachtal

The Naafbach is just 22.7 kilometers long, orographic left or eastern tributary of the Agger in the Rheinisch- Bergische Kreis and Rhein- Sieg district, in North Rhine -Westphalia, Germany.

Course

The Bergisch in Bergisch Land and Natural Parkland running Naafbach rises two spring-fed streams in the southern foothills of the forests of the rear:

The western source stream ( 0.8 km long), referred to by the Naafbach - kilometer of just 22.7 kilometers long, rises in the Rheinisch -Bergisch district on the southeast edge of the little tail mountain ( 348.1 m above sea level. NHN ). Its source is located in the district of Overath between the far west in the village Federath and about 580 m southeast, yard Siebelsnaaf to about 312 m altitude. The forest area of its origin leaving it flows südsüdostwärts after Abelsnaaf to unite with the eastern source stream to Naafbach.

The eastern source stream ( 0.9 km long) rises on the border of the Rheinisch -Bergisch - circle to the eastern Rhein- Sieg-Kreis in the transition region of the southern flanks of the Little Berg's tail to tail mountain ( 383.4 m). Its origin lies on the border of the districts of Overath and Much between the Court Siebelsnaaf the west, the hamlet Esinghausen the east and the village Heckhaus to about 320 m altitude. The edge of the forest leaving at its source and the Never Bach taping it flows southwestward after Abelsnaaf to unite with the western source stream to Naafbach.

Henceforth the Naafbach runs primarily along the border of the Rhein- Sieg district to the southwest past Schommelsnaaf where the Brungssiefen opens, and Bixnaaf where the Hentgesnaafer Siefen flows, to Breitenstein (all about Overath ). Then reached the creek after inflow of small birch Bach fishermen mill ( Much), where he is fed the provincial road passes under 312, and shortly thereafter the small Siefenbach (oil Bach).

Then the Naafbach runs on Rieserhof ( Much) and on the threshold Mühle ( Overath ) over which the Small Naafbach, who had recently passed the Blindenaafer mill discharges. Then he happened Büchel ( about Overath ) and the Klauserhof ( Much) and flows shortly afterwards - just south of the creek located off Four bridges ( Overath ) - finally at the Rhein- Sieg-Kreis one. Thereafter, the stream flows south and takes the Wood Creek ( at Kucken Bach) on. Then he runs further south to Ingersauel, it curves around in a right turn, and then passes southwestward Büchel, the Naafmühle and Bloch (all about Lohmar ).

After inflow of less creek, which opens when a little off both streams past elections ( to Milton of Campsie ) and longest Naafbach inflow is the Naafbach reached the hamlet Kreuznaaf ( to Lohmar ) to after passing under the highway 484 to 66 m in the there to open approximately from the north flowing tributary victory Agger.

On his way to the river overcomes 225 m difference in altitude, which corresponds to an average bed slope of 9.9 ‰.

Flora and Fauna

In Naafbach bullhead and brook lamprey are native. In addition, the Naafbach stocking Bach is for the re -introduction of salmon. In Naafbachtal are the red kite, kingfishers, watching black and green woodpecker.

On Naafbach change Luzulo -Buchwald, chickweed - oak-hornbeam forest and alder-ash forest with pastures and hay meadows from. Here flourish reed canary grass reed, sedge and meadowsweet.

Monument and Conservation

By 1980, all worth protecting property and houses were made ​​in the valley of Naafbachs under monument protection. The valley - with the exception of the short portion of the western source Bach from the origin until after Abelsnaaf - with most side valleys was put under protection: There are nature reserves Naafbachtal ( founded in 1989; 852.39 ha; NSG No. 164744. ) And Upper Naafbachtal ( founded in 2005 and 11.42 ha. NSG No. 344 732 ), the latter located on the eastern source stream and along a small stream section below Abelsnaaf.

Dam

For drinking water supply for the cities of Cologne and Bonn were already about 1930 plans underway to dam the Naafbach and to use as drinking water reservoir. This remained under greater construction activities in the valley.

In 1973 there were solid plans to begin dam construction in 1980. Using appropriate state funds acquired the mandated Aggerverband the local realty to 60 percent. For 1985, the completion would have been announced.

After civil protests then the need for the dam construction has been questioned and the plans not continued. In 1985, the national average for the dam have been set, but the option of a dam construction remains.

Hiking

The Naafbachtal is to explore good especially walking. The valley is crossed by the wide hiking trails of the Sauerland mountain association X22 and X29.

Catchment and inflows

The catchment area of ​​Naafbachs is 45.869 km ². Its tributaries include with orographic mapping (l = left side, R = right side ), length, mouth position, direction of influence, mouth height ( in meters above mean sea level ), and (if known) catchment ( downstream considered ) /:

• Never Bach ( l) - 0.5 km - (for Siebelsnaaf, from the north-east ), 295 m
• Brungssiefen (r ) - 1.1 km - (for Schommelsnaaf, from the north ), 234 m
• Hentgesnaafer Siefen (r ) - 1.2 km - (for Bixnaaf, from the north ), 223 m
• Ohligsberg Bach ( l) - 1.7 km - (for Breitenstein, from the north-east ), 202 m
• Birkenbach ( l) - 2 km - ( Fischer Mill, from east-northeast ), 178 m
• Siefenbach / Oil Bach ( l) - 1.9 km - ( Fischer Mill, from east-southeast ), 176 m, 1.419 km ²
• Bach of low groats Bach ( r) - 1.5 km - (below Fischermühle, from the north ), 173 m
• Kühlingsbach ( l) - 1.4 km - (below Fischermühle, from the south), 166 m
• Small Naafbach (r ) - 3.9 km - ( at threshold Mühle, from the north ), 151 m, 4.085 km ²
• Bonnensiefen (r ) - 0.9 km - ( at Büchel, from the north ), 145 m
• Mühlensiefen ( l) - 1 km - (for Klauserhof, from the south), 138 m
• Eulenbach (r ) - 1.4 km - (for four bridges, from the north ), 136 m
• Kaltenbonnsiefen (r ) - 1 km - (for four bridges, from the west ), 135 m
• Steinenbach ( l) - 1.3 km - ( at Meis Bach, from the north-east ), 118 m
• Wood Creek ( l) - 3 km - ( at Kucken Bach, from the east), 112 m, 2.547 km ²
• Sieferbach / Siefenbach (r ) - 2.1 km - (for Ingersauel, from the north-west ), 105 m
• Hellenbach ( l) - 2.4 km - (for Ingersauel; east ), 104 m
• Less Bach ( l) - 8.7 km - ( in elections, from the south), 84 m, 7.068 km ²
• Ürnich ( l) - 1.9 km - ( at Grimberg, from the southeast ), 77 m