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The Ruhr
Ruhr
is a river in western Germany
Germany
(North Rhine-Westphalia), a right tributary (east-side) of the Rhine. Description and history[edit]

The Ruhr
Ruhr
valley near Bochum
Bochum
during a flood

The source of the Ruhr
Ruhr
is near the town of Winterberg
Winterberg
in the mountainous Sauerland
Sauerland
region, at an elevation of approximately 2,200 feet (670 m). It flows into the lower Rhine
Rhine
at an elevation of only 56 feet (17 m) in the municipal area of Duisburg. Its total length is 219 km (136 mi), its average discharge is 79 m³/s (cubic metres per second) at Mülheim
Mülheim
near its mouth. Thus, its discharge is, for example, comparable to that of the river Ems in Northern Germany or the River
River
Thames in the United Kingdom. The Ruhr
Ruhr
first passes the towns of Meschede, Arnsberg, Wickede, Fröndenberg, Holzwickede, Iserlohn
Iserlohn
and Schwerte. Then the river marks the southern limit of the Ruhr
Ruhr
area, passing Hagen, Dortmund, Herdecke, Wetter, Witten, Bochum, Hattingen, Essen, Mülheim
Mülheim
and Duisburg. The Ruhr area
Ruhr area
was Germany's primary industrial area during the early- to mid-20th century. Most factories were located there. The occupation of the Ruhr
Ruhr
from 1923-24 by French forces, due to the Weimar Republic's failure to continue paying reparations from World War I, provoked passive resistance, which saw production in the factories grind to a halt. As a result, the German hyperinflation crisis grew even worse. During World War II, two of the dams on the Ruhr, the Möhne Dam
Möhne Dam
and the Sorpe Dam
Sorpe Dam
were targets for Operation Chastise, in which special "bouncing bombs" were developed to take out the dams and flood the valley, with the hope of seriously affecting the German industries there. The story was told in a 1951 book and the popular 1955 film made from it, The Dam Busters.

The drainage basin of the Ruhr

Lakes[edit] There are five Ruhr
Ruhr
reservoirs on the river, often used for leisure activities.

Hengsteysee
Hengsteysee
between Dortmund
Dortmund
and Hagen, surface area: 1.36 km² height of the weir 4.5m Harkortsee between Herdecke
Herdecke
and Wetter; surface area: 1.37 km², height of the weir 7.8m Kemnader See between Witten and Bochum; surface area: 1.25 km², height of the weir 2m Baldeneysee in Essen-Werden; surface area: 2.64 km², height of the weir 8.5m Kettwiger See in Essen-Kettwig; surface area: 0.55 km², height of the weir 6m

See also[edit]

Ruhr
Ruhr
(area) Occupation of the Ruhr
Occupation of the Ruhr
(1923–1924) Nearby rivers: Rhine, Lenne, Lippe, Emscher.

References[edit] Notes

^ a b Hydrographic Directory of the NRW State Office for Nature, the Environment and Consumer Protection (Gewässerverzeichnis des Landesamtes für Natur, Umwelt und Verbraucherschutz NRW 2010) (xls; 4.67 MB)

Sources

 This article incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "Ruhr". Encyclopædia Britannica (11th ed.). Cambridge University Press. 

External links[edit]

Media related to Ruhr
Ruhr
at Wikimedia Commons

v t e

Tributaries of the Rhine

Left (western)

Vorderrhein Aua da Russein Schmuèr Alpine Rhine Vorderrhein Tamina Alter Rhein Rheintaler Binnenkanal Lake Constance Goldach High Rhine Thur Töss Glatt Aare Sissle Ergolz Birs Birsig Upper Rhine Ill Moder Sauer Lauter Spiegelbach Queich Speyerbach Rehbach Isenach Eckbach Eisbach Pfrimm Selz Middle Rhine Welzbach Nahe Moselle Nette Brohlbach Ahr Lower Rhine Erft

Right (eastern)

Vorderrhein Rein da Tuma Rein da Curnera Rein da Medel Rein da Sumvitg Glogn Rabiusa Hinterrhein Ragn da Ferrera Albula/Alvra Alpine Rhine Hinterrhein Plessur Landquart Mülbach Ill Frutz Lake Constance Dornbirner Ach Bregenzer Ach Leiblach Argen Schussen Rotach Brunnisaach Lipbach Seefelder Aach Stockacher Aach Radolfzeller Aach High Rhine Biber Wutach Alb Murg Wehra Upper Rhine Wiese Elz Kinzig Rench Acher Murg Alb Pfinz Saalbach Kraichbach Leimbach Neckar Weschnitz Modau Main Middle Rhine Wisper Lahn Wied Lower Rhine Sieg Wupper Düssel Ruhr Emscher Lippe IJssel Oude IJssel/Issel Berkel Schipbeek

Authority control

WorldCat Identities VIAF: 239445365 GND: 4050923-0 BNF: cb1194

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