Röhr (river)

The Roehr is a 28.9 km long, orographic left tributary of the Ruhr in North Rhine-Westphalia Sauerland ( Germany ).

• 2.1 Condition of Rohr
• 2.2 Protected Areas
• 2.3 Animals
• 2.4 Meaning as a traffic

Geography

The Rohr rises at the southern edge of tube Spring, a district of Sundern, at an altitude of 597 m above sea level. NN. From here it flows primarily in a northerly direction. It flows through on its way to the previously mentioned pipe Spring, Sundern, Hachenbach, Müschede and flows Hüsten to 161 meters above sea level. NN on the left into the dysentery.

At the 28.9 km long road of Rohr a height difference of 436 m is recorded, corresponding to an average bed slope of 15.1 ‰. She drains an area of 203.427 km ². The most important tributary is the Sorpe with the Sorpetalsperre. When Endorfer mill water of Rohr can ( 7.2 km Settmecke studs ) are cut off in the Sorpetalsperre a tunnel system.

Tributaries

The most important tributary of the Rohr is the 18.6 km long Sorpe. With a catchment area of ​​57.203 km ², it has a share of 28 % where the Rohr. Another significant tributary is the 14.3 km long Linnepe with a 40.842 km ² large catchment area.

The following are the tributaries of the Rohr in order from the source are credited to the mouth. Is indicated in each case the orographic situation, the mouth position, stating the stationing kilometer, the length, the size of the catchment area, the mouth height and the waters code ( Note: For the better sortability a space has been inserted ).

Nature and Environment

State of Rohr

The Rohr was examined on behalf of the Ministry for the Environment, Agriculture and Consumer Protection of North Rhine -Westphalia ( MUNLV ) For the management plan for the Water Framework Directive of the EU. The various aspects of Rohr was evaluated. It was carried out in the examination, a division into two areas. The one part of the field went from the source to the local situation Sundern and the other portion from local situation Sundern to the mouth of the Ruhr. The Rohr in its entirety was classified as natural, despite barriers in the local documents. The general degradation was to Sundern rated as moderately and after Sundern as well. The saprobic along the entire river classified as good. For benthic invertebrates ( live at the bottom of the water microbes ) to Sundern as moderate and from local situation Sundern as well. The fish fauna of the Rohr has not been studied. The migratory fish or the continuity for migratory fish classification was as bad, with only the area was evaluated from Sundern. When macrophytes ( aquatic plants visible with the naked eye, living in and on the water surface, including Chara, mosses and ferns and seed plants such as pondweed ) to Sundern as very good and after Sundern as bad. In Phytobenthos (live at bottom of the water plants, mainly algae) as standard from Sundern, above Sundern was no classification. With regard to the burden of Rohr with nitrate, metals, and other potentially harmful substances the body of water it was probably as good, good to very good classified. Only for non-priority metals was carried out after Sundern being classified as poor. Because of the barriers in the local positions of the ecological status and the potential for improvement to Sundern was only classified as moderately and after Sundern even as bad. The chemical state of the Roehr was evaluated in the entire course of the river as well. In the area of the confluence with the river Ruhr Hüsten the Rohr was created a new river bed on 13 March 2014 in particular, the course was renatured with a loop.

Reserves

Large parts of the lower reaches of Rohr in the urban area Arnsberg have been designated as a nature reserve and at the same time as a conservation area. In the currently ongoing review of the landscape plan Sundern, even parts of the river are found in the urban area Sundern under protection.

Animals

At the Rohr previously Kingfisher, Dipper, Grey Wagtail, Mallard and Tufted Duck were detected as breeding birds. As food stays during heron, black stork and rarely cormorant. At the Rohr and the muskrat, in the local situation Sundern, the brown rat occurs.

Importance as a transport route

The Valley of Rohr is opened up almost the entire length of road. In the upper reaches of the Rohr is accompanied by the County Road 24 until it empties into the national road 519. This leads to the river entlangt about Sundern after Hachenbach, where they in turn flows into the federal highway 229. The latter accompanied the Rohr to its confluence with Hüsten.

From Sundern downstream, the valley is also used by the Röhrtalbahn.