Valme

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Valme
Data
Water code DE : 27612
location Germany
River system Rhine
Drain over Ruhr  → Rhine  → North Sea
source on the north flank of the Hunau
51 ° 12 ′ 57 ″  N , 8 ° 24 ′ 44 ″  E
Source height 775  m above sea level NHN
muzzle in Bestwig in the Ruhr Coordinates: 51 ° 21 '49 "  N , 8 ° 23' 56"  E 51 ° 21 '49 "  N , 8 ° 23' 56"  E
Mouth height 291  m above sea level NHN
Height difference 484 m
Bottom slope 25 ‰
length 19.7 km
Catchment area 62.722 km²
Weir on the Valme for irrigation of meadows, 1925

The Valme is a 19.7 km long left tributary of the Ruhr in the North Rhine-Westphalian Hochsauerlandkreis , Germany .

geography

course

The Valme rises above the Nassen Wiese on the northern flank of the Hunau at 775  m above sea level. NHN . From here it flows primarily to the north, passing the towns of Obervalme , Werdern , Ramsbeck and Heringhausen before reaching Bestwig at 291  m above sea level. NHN flows into the Ruhr on the left .

On its 19.7 km long path, the Valme experiences a difference in altitude of 484 m, which corresponds to an average bed gradient of 24.6 ‰. It drains a 62.722 km² above-ground catchment area via the Ruhr and Rhine to the North Sea .

The Valme flows in the upper reaches of the Upper Valme protected landscape area, which is surrounded by the Valmetal nature reserve north and south of Lanfert . The lower reaches lie partly in the nature reserve valley system of the Valme .

Tributaries

Numerous streams, some of them very short, flow into the Valme from the slopes of the surrounding mountains. The most important tributary is the Brabecke with a length of 13.6 km. With its 32.439 km² catchment area, the Brabecke has more than 50% share of that of the Valme. In the following the tributaries of the Valme are named.

Surname location Length
[km] 		Catchment area
[km²] 		Mouth height
[m above sea level. NHN] 		DGKZ
Rough break right 1.4 670 27612112
Hagmecker Siepen right 1.1 452 27612114
Steinbecke right 1.3 0.626 445 2761212
NN right 1.4 415 27612192
Reitmecke right 1.6 398 27612194
Eismecke right 0.8 392 27612196
Brabecke Left 13.6 32,439 379 276122
Hannebecke right 2.2 2.473 364 276124
This corner Left 1.5 315 2761252
Bilmecke right 3.9 3,673 311 276126

Renaturation

From 2019 to 2020 the Valme was renatured over a length of 6.1 kilometers in the village of Ramsbeck . The reason was Directive 2000/60 / EC (Water Framework Directive) , which stipulates that the rivers in Europe should be put in good ecological condition. The measures cost around one million euros. Of this, 90 percent was paid by the state of North Rhine-Westphalia and the rest by the municipality of Bestwig. Bestwig was also credited with its investment in the form of eco-points , which can then be used for other building measures instead of compensatory measures that are subject to a fee. In the Valme, 24 transverse structures were removed and concrete elements on the bank. At the village square, people were able to access the river directly.

Individual evidence

  1. ↑ a b German basic map 1: 5000
  2. ↑ a b Topographical Information Management, Cologne District Government, Department GEObasis NRW
  3. ↑ Monika Loerchner: The renaturation of the Valme: A living river flows through Ramsbeck again. WOLL Summer 2020: 84-87