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Rench - Wikipedia

Coordinates: 48°29′27″N 8°14′49″E / 48.4908639°N 08.2469944°E

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Rench
The Rench dyke near Lautenbach
Course of the Rench (interactive map)
Location
Country	Germany
State	Baden-Württemberg
Reference no.	DE: 2354
Physical characteristics

Source
• location	at Kniebis near Bad Griesbach im Schwarzwald-Zuflucht source Schöngrundbächle
• coordinates	48°29′27″N 8°14′49″E / 48.4908639°N 08.2469944°E / 48.4908639; 08.2469944
• elevation	ca. 915 m above sea level (NN)

Mouth
• location	at Rhine km 314.700, near Rheinau/Lichtenau/Helmlingen into the Rhine
• coordinates	48°43′22″N 7°58′00″E / 48.7226583°N 7.9665861°E / 48.7226583; 7.9665861
• elevation	123 m
Length	57.1 km (35.5 mi) ^[1]
Basin size	305.1 km² (117.8 sq mi) ^[1]

Discharge
• location	^[2]
• average	8.37 m³/s

Basin features
Progression	Rhine→ North Sea
Landmarks	Small towns: Oppenau, Oberkirch, Renchen Villages: Bad Peterstal-Griesbach, Lautenbach, Erlach
Population	88650^[3]
Tributaries
• left	Ödsbach, Hesselbach
• right	Lierbach, Acher (Teilmenge)

The Rench is an eastern tributary of the Rhine in the Ortenau in Central Baden, Germany. It rises on the southern edge of the Northern Black Forest at Kniebis near Bad Griesbach im Schwarzwald. The source farthest from the mouth is that of the Schöngrundbächle which rises at a height of around 915 m above NN in the parish of Zuflucht. After flowing through its steep mountainside klinge it is joined by other streams to form, first, the Old (Alter), then the Wild Rench (Wilder Rench), which first becomes the Rench below Bad Griesbach. The Rench runs in a prominent southerly arc through the Central Black Forest and crosses the hilly region of Ortenau with its orchards and vineyards before breaking out into the Rhine Plain. After just under 57 km it, together with the Mühlbach, confluences with the Rhine at 314.7 km between Helmlingen (Rheinau) and Lichtenau.

The upper Rench valley around Bad Peterstal-Griesbach initially cuts into the forested bunter sandstone plateau before entering a more open, very steep rugged valley, near the town of Oppenau. There it is joined from the east by the Lierbach, well known for the All Saints Waterfalls. In Lautenbach the valley abruptly broadens into the Foothill Zone with the town of Oberkirch at the foot of the vineyards and the little town of Renchen.

The B 28 federal road, long an important route through the Black Forest, runs through the Rench valley linking the Strasbourg area with the upper Neckar region. It climbs steeply above Bad Griesbach in hairpin bends to the Alexanderschanze (968 m). The Rench Valley Railway starts at Appenweier and runs as far as Bad Griesbach. It has also contributed to the development of the thermal baths in the Rench valley, which had already been established in the 16th century in Bad Griesbach, but which soon extended to Bad Antogast near Oppenau (especially for the nobility), Bad Peterstal and Bad Freiersbach (today part of Bad Peterstal-Griesbach).

The "Rench Flood Canal" was built between 1936 and 1953 at the Acher Rench Correction to divert floodwaters. It branches off the Rench at Erlach, picks up the Acher Canal at Rheinau and merges with the actual Rench at Memprechtshofen.

Gallery

The Rench in Oppenau
The Rench near Helmlingen at low water
The Rench in riparian woods near Helmlingen
Confluence of the Rench and the Rhine

References

^ ^a ^b Map services of the Baden-Württemberg State Office for the Environment, Survey and Conservation (Landesanstalt für Umwelt, Messungen und Naturschutz Baden-Württemberg)
^ Regierungspräsidium Freiburg: TBG Begleitdokumentation Acher-Rench (33), Tab. A 7.2.1, Freiburg i. Br. 2009 (converted from m³/a).
^ Regierungspräsidium Freiburg: TBG Begleitdokumentation Acher-Rench (33), Freiburg i. Br. 2009.

External links

Wikimedia Commons has media related to Rench.

"LUBW-BRSWEB": Map services of the Baden-Württemberg State Office for the Environment, Survey and Conservation (Landesanstalt für Umwelt, Messungen und Naturschutz Baden-Württemberg)
Geodata viewer of the Baden-Württemberg State Office of Geoinformation and Land Development (Landesamt für Geoinformation und Landentwicklung Baden-Württemberg), especially the map sections and layers
- the Landesanstalt für Umwelt, Messungen und Naturschutz Baden-Württemberg (LUBW)
  - "LUBW-FG10": Rivers, 1:10,000 scale
  - "LUBW-SG10": Lakes and reservoirs, 1:10,000 scale
  - "LUBW-GEZG": Catchments
Map of the Rench from source to mouth at OpenStreetMap

v t e Tributaries of the Rhine
Left	Vorderrhein Aua da Russein Schmuèr Alpine Rhine Vorderrhein Tamina Saar Alter Rhein Rheintaler Binnenkanal Upper Lake Constance Goldach Aach (Arbon) Aach (Romanshorn) Seerhein Grenzbach Dorfbach Lower Lake Constance Anderbach High Rhine Thur Töss Glatt Aare Sissle Möhlinbach Ergolz Birs Upper Rhine Birsig 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	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 Liechtenstein inland canal Ill Frutz Upper Lake Constance Dornbirner Ach Bregenzer Ach Leiblach Argen Schussen Rotach Brunnisach Lipbach Seefelder Aach Stockacher Aach Lower Lake Constance Radolfzeller Aach High Rhine Biber Durach Wutach Alb Murg Wehra Upper Rhine Wiese Kander 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

v t e Rivers of Germany by drainage basin or main stem
Baltic Sea	Oder Lusatian Neisse Peenestrom Peene Recknitz Schwentine Trave Stepenitz Uecker Warnow Nebel
Black Sea	Danube Abens Altmühl Brenz Friedberger Ach Große Laber Günz Iller Ilz Inn Isar Lauchert Lech Mindel Naab Paar Regen Riß Rot Schwarze Laber Vils Wörnitz Zusam
North Sea	Elbe Aland Alster Bille Black Elster Eger Havel Ilmenau Jeetzel Löcknitz Mulde Ohre Oste Saale Stör Stepenitz Weißeritz Wesenitz Eider Treene Ems Hase Rhine Acher Ahr Elz Emscher Erft Kinzig Lahn Lauter Lippe Main Moselle Murg Nahe Neckar Pfinz Queich Rench Ruhr Sauer Selz Sieg Wied Wiese Wupper Wutach Weser Aller Diemel Fulda Hunte Lesum Werra Werre
Maas	Niers Rur Inde Merzbach Wurm
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