Negro (Ruhr)
| Negroes | ||
 Marking stone "An den Negerquellen" on Klappersberg |
||
| Data | ||
| Water code | DE : 276114 | |
| location | Germany | |
| River system | Rhine | |
| Drain over | Ruhr → Rhine → North Sea | |
| source | On the Klappersberg near Schmallenberg - Rehsiepen 51 ° 12 ′ 23 ″ N , 8 ° 25 ′ 31 ″ E |
|
| Source height | approx. 720 m above sea level NHN | |
| muzzle | near Olsberg - Steinhelle in the Ruhr Coordinates: 51 ° 19 ′ 51 ″ N , 8 ° 29 ′ 19 ″ E 51 ° 19 ′ 51 ″ N , 8 ° 29 ′ 19 ″ E |
|
| Mouth height | approx. 349 m above sea level NHN | |
| Height difference | approx. 371 m | |
| Bottom slope | approx. 21 ‰ | |
| length | 17.7 km (with nameless 20.3 km) |
|
| Catchment area | 53.883 km² | |
| Discharge at the Siedlinghausen2 A Eo gauge : 35.4 km² Location: 9.6 km above the mouth |
NNQ (08/15/1997) MNQ 1980/2007 MQ 1980/2007 Mq 1980/2007 MHQ 1980/2007 HHQ (10/28/1998) |
7 l / s 79 l / s 943 l / s 26.6 l / (s km²) 16.7 m³ / s 48.6 m³ / s |
The Neger is a southwest or left tributary of the Ruhr in the North Rhine-Westphalian Hochsauerlandkreis ( Germany ). After a generally northward run of 17.7 km in length, it reaches a water flow of a good 1.3 m³ / s on average. The flow goes up on local locations and smaller portions in protected areas in the nature reserves reserve Hömberg / Bruse Becke / Eberg / Cold Spring , reserve Negro and Birautal , reserve Medium Negertal and reserve Negertal .
geography
course
The Neger rises in the Rothaargebirge on the northwest flank of the Klappersberg ( 729.9 m ) at an altitude of 722 m above sea level. NHN in the nature reserve Hömberg / Brusenbecke / Eberg / Kalte Spring . Its source is about 1.5 km (as the crow flies ) northeast of Rehsiepen , a district of Schmallenberg . It flows exclusively in the Sauerland-Rothaargebirge nature park .
First the negro flows east. After a distance of around 1.5 km, the direction of the river turns south-west of Mount Frettloh ( 643.9 m above sea level ) abruptly to the north-east. At this point several short rivers flow, which the negroes flow from the slopes of the surrounding mountains. From then on, the Neger flows parallel to the state road 742. The valley suddenly widens to a wide trough valley with a kar-like valley head. The Gutmecke flows about 1.4 km downstream on the right , another 600 m later on the right, the Renau , which flows past the Jagdschloss Siedlinghausen shortly before its mouth . From a hydrographic point of view, it represents the main river, as it is not only longer but also 40% richer in water than the negroes. The Birau (Giers) , which comes from the Hunau massif and drains a trough valley over two hundred meters deep , joins the Mühlenhof on the left .
The first village on the Neger is Siedlinghausen . The Nameless (Lamelofe) , which rises northwest of Winterberg, flows here on the right. At 10.2 km in length, it is the longest Negro tributary and even longer than this at the point of mouth. Between Siedlinghausen and Brunskappel , the Hambkebecke flows out on the right , before the Negroes flow through a reservoir ( 428.9 m above sea level ) of the Steinhelle 1 power station . The Hartmecke flows into the southern outskirts of Brunskappel on the left . In the section between Brunskappel and Wulmeringhausen , several short watercourses flow on both sides, which flow off the slopes of the surrounding mountains. Between Wulmeringhausen and Steinhelle , a hamlet in the urban area of Olsberg , Fauleborn and Faules Siepen flow in on the left .
Finally , the Neger flows into Steinhelle between the mountains (height in meters above sea level ; NHN) Steinhelle ( 612.7 m ; in the northwest), Schmalenberg ( 714.2 m ; in the west) and Wiedegge ( 732.3 m ; in the west-southwest) and Heidkopf ( 715.3 m ; in the east) on the left at 349 m in the Ruhr . About 60 m north below the mouth of the Negro, the L 742 meets the federal highway 480 .
At its mouth, the Neger carries around a sixth more water than the Ruhr as the main river by name and exceeds this by a good 8 km in length (with Renau). Between the source and the mouth, the Neger overcomes a 370 m difference in altitude, which corresponds to an average bed gradient of 20.9 ‰.
Tributaries
The most important tributary of the Negro is the 10.2 km long Nameless . With its 15.376 km² catchment area, it drains 28.5% of the negro area. The following are the tributaries of the Negroes in the order from the source to the mouth.
| Surname | Position ( km ) |
page | Length ( km ) |
EZG ( km² ) |
Mouth height ( m above sea level ) |
GKZ |
|---|---|---|---|---|---|---|
| Gutmecke | 14,799 | right | 2.4 | 1.364 | 534 | 276114-12 |
| Renau | 14.254 | right | 5.4 | 6.354 | 519 | 276114-14 |
| Birau | 13.107 | Left | 4.5 | 4,719 | 488 | 276114-2 |
| Nameless ones | 10.111 | right | 10.2 | 15.376 | 444 | 276114-4 |
| Hammock pool | 8.315 | right | 2.3 | 423 | 276114-92 | |
| Hartmecke | 7.430 | Left | 0.8 | 411 | 276114-94 | |
| NN | 7.184 | right | 1.1 | 409 | 276114-952 | |
| Fauleborn | 1.186 | Left | 1.5 | 360 | 276114-96 | |
| Lazy sifting | 0.760 | Left | 1.1 | 356 | 276114-98 |
A comparison of negroes and dysentery
Up to its confluence, the Neger (17.7 km, via Renau 19.1 km) is not only longer than the Ruhr (16.7 km, via Hille 17.7 km), but also has a slightly larger catchment area (53.883 km² vs. 52.977 km²). The mean runoff of the Negro is a good 1.3 m³ / s compared to a good 1.1 m³ / s of the Ruhr. Therefore, the Negro at the mouth is at least as important a body of water.
History and economy
The former village of Neger near Siedlinghausen was given up around 1550.
The Neger dam at Brunskappel with 44.5 million m³ of storage volume (low water regulation), which was planned from 1976 onwards , was not implemented, as was the later planned Renau dam above Siedlinghausen with a storage volume of 18 million m³ (drinking water).
Above Siedlinghausen and from Wulmeringhausen , the Neger is assigned to water quality class I-II, in between there is a stretch of quality class II. The structural quality is still impaired by several barriers.
Individual evidence
- ↑ a b c d German basic map (DGK 5) in Topographical Information Management, Cologne District Government, Department GEObasis NRW ( information )
- ↑ a b c d e Topographical Information Management, Cologne District Government, Department GEObasis NRW ( information )
- ↑ German hydrological yearbook Ruhr / Siedlinghausen2 2010 ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. (PDF, 14.6 kB)
- ↑ a b c Antje Giers: Forecast and assessment of the ecological consequences of hydraulic engineering measures using the example of a dam planning in the Hochsauerland Dissertation Ruhr University Bochum 2003 (Tab. 75, p. 262) (PDF; 2.69 MB)
- ↑ For a better overview and sorting downstream, a hyphen has been inserted for each river in the water code number (GKZ) after the number “276114”, which stands for the negroes .
- ↑ The brook marked as "Birau" on maps is declared as "Giers" in the water station.
- ↑ Data based on the Olsberg gauge. Archived from the original on July 30, 2012 ; accessed on August 8, 2016 . on the Ruhr below the mouth and Siedlinghausen 2 ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. at the Neger, whereby the area runoff of the intermediate catchment area is related to the catchment areas of the Ruhr above the confluence and the Neger below the water level catchment area Siedlinghausen 2 .
- ↑ Ruhrtalsperrenverein Essen: Without water there is no life! Die Negertalsperre In: Der Aufbau, H. 2, S. 53-56. Bremen 1979 (PDF: 10.42 MB)
- ^ Regional council Arnsberg: Area development plan district Soest and Hochsauerlandkreis , Arnsberg 1994, p. 242
Web links
- Forecast and evaluation of the ecological consequences of hydraulic engineering measures using the example of dam planning in the Hochsauerland , dissertation Ruhr-Universität Bochum 2003, on ruhr-uni-bochum.de (PDF; 2.69 MB)