Rotwassergraben (Wienfluss)

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Rotwassergraben
Rotwasser
Rotwassergraben in the Lainzer Tiergarten

Rotwassergraben in the Lainzer Tiergarten

Data
location Vienna , Austria
River system Danube
Drain over Vienna River  → Danube  → Black Sea
source in the Lainzer Tiergarten
48 ° 10 ′ 20 ″  N , 16 ° 12 ′ 15 ″  E
muzzle in Hütteldorf in the Wien river Coordinates: 48 ° 12 ′ 10 ″  N , 16 ° 14 ′ 5 ″  E 48 ° 12 ′ 10 ″  N , 16 ° 14 ′ 5 ″  E

length 7 km
Catchment area 5.1 km²
Left tributaries Glass trench
Right tributaries Wallnergraben

The Rotwassergraben , also known as Rotwasser , is a stream in the 13th district of Hietzing in Vienna . It is a right tributary of the Wien River .

course

The Rotwassergraben has a length of 6985 m with a height difference of 182 m. Its catchment area is 5.1 km².

Most of the stream runs through the Lainzer Tiergarten nature reserve . It rises west of the Hornauskogel near the Hirschgstemm rest house. Its river system is widely ramified, with most of its tributaries flowing through narrow valley valleys . He takes the right side Wallner digging up, then at the foot of Johannser Kogels left side of the glass ditch . The upper course of the Rotwassergraben up to the Glasgraben is also known as the Hüttgraben . The section from the Glasgraben, which runs through a sole valley , used to be called Pulverstampfbach after the pulverulent ramming mill on its lower reaches that existed until the end of the 18th century. The Rotwassergraben flows into the Wien River in the Auhof retention basin in Hütteldorf .

The water flow of the stream fluctuates greatly. The mean discharge (MQ) is 0.06 m³ / s. During a flood of the century (HQ100), 23.8 m³ / s are reached. There is no risk of flooding at the Rotwassergraben. In the event of a flood of the century, neither the infrastructure nor the resident population are affected.

history

In the 18th century the Rotwassergraben did not flow directly into the Wien River, but into a forerunner of the Mooswiesengraben . In the period 1780 to 1825 was an am Moos Wiesbaden trench weir built, the silting caused both streams ultimately separated from each other. In the course of the Vienna river regulation at the end of the 19th century, the lower reaches of the Rotwassergraben was regulated and straightened.

ecology

Bischofswiese in the valley of the Rotwassergraben

The brook serves as spawning water for yellow-bellied toads ( Bombina variegata ), common frogs ( Rana temporaria ) and agile frogs ( Rana dalmatina ). In its headwaters were Great cordulegastridae ( Cordulegaster heros ) were detected. The Rotwassergraben is also a habitat for the nymph bat ( Myotis alcathoe ) and the water bat ( Myotis daubentonii ).

Near-natural black alder , ash and alluvial forests grow along the stream . Ash spring forests lie on its upper reaches . The Bischofswiese in the valley of the Rotwassergraben is a large smooth oat - fat meadow , on which the plant species swamp sedge and spit skullcap can be found in places . In the mouth area there are gravel banks and reed beds with cane grass .

bridges

Johannserbrücke over the Rotwassergraben

The Rotwassergraben is crossed by the following bridges, lined up in the direction of flow:

  • Stadlbodenbrücke: The 5 m long and 4 m wide reinforced concrete road bridge on Pulverstampfstraße was built in 2003.
  • Hüttgraben Bridge: The 5 m long and 4 m wide reinforced concrete road bridge on the Pulverstampfstraße was built in 2002.
  • Braumeisterbrücke: The 6 m long and 4 m wide reinforced concrete road bridge on the Pulverstampfstraße was built in 1940.
  • Johannser Bridge: The 7 m long and 4 m wide reinforced concrete road bridge on Pulverstampfstraße was built in 1940.
  • Kaiserzipfbrücke: The 7 m long and 4 m wide reinforced concrete road bridge on the Glasgrabenweg was built in 1940.
  • Sound bridge: The 7 m long and 4 m wide reinforced concrete road bridge on Pulverstampfstraße was built in 1940.
  • Powder stamping bridge: The 9 m long and 4 m wide reinforced concrete road bridge on the Forsthaus-Auhof-Weg was built in 1940.
  • Rotwasserbrücke: The 16 m long and 7 m wide reinforced concrete road bridge on Hofjagdstrasse was built in 1967.
  • Rotwasserbachbrücke: The 7 m long and 28 m wide reinforced concrete road bridge on Wientalstrasse was built in 1966.

See also

literature

  • Julia Tanzer: Historical morphological changes in the southern Viennese Danube feeder 1755–2010 . Master thesis. University of Natural Resources and Life Sciences, Vienna 2016, Chapter 5.3.4 Rotwassergraben , p. 84-88 ( boku.ac.at [PDF]).

Web links

Commons : Rotwassergraben (Wienfluss)  - Collection of images, videos and audio files

Individual evidence

  1. ↑ a b c brooks by district. Economy, Labor and Statistics (Municipal Department 23), Municipal Authority of the City of Vienna, accessed on January 3, 2020 .
  2. ↑ Julia Tanzer: Historical morphological changes in the southern Vienna Danube feeder 1755-2010 . Master thesis. University of Natural Resources and Life Sciences, Vienna 2016, p. 84–85 ( boku.ac.at [PDF; accessed January 3, 2020]).
  3. ↑ MA 45, review of the discharge capacity of various torrents in connection with flood protection. Activity report 2014. (PDF) City Audit Office Vienna, April 2014, p. 8 , accessed on January 3, 2020 .
  4. ↑ Julia Tanzer: Historical morphological changes in the southern Vienna Danube feeder 1755-2010 . Master thesis. University of Natural Resources and Life Sciences, Vienna 2016, p. 86 ( boku.ac.at [PDF; accessed January 3, 2020]).
  5. ↑ Heinz Grillitsch, Silke Schweiger: Final report on the survey of amphibian spawning waters in Vienna “Spawning waters mapping 2015 and 2016”. (PDF) Vienna Environmental Protection Department (Magistratsabteilung 22), November 2016, pp. 38, 74, 82 , accessed on January 3, 2020 .
  6. ↑ Heidemarie Lang, Christoph Lang, Rainer Raab: Recording the spring maiden occurrences in Vienna's urban area. (PDF) MA 22 - Environmental Protection, Magistrat der Stadt Wien, December 2002, p. 7 , accessed on January 3, 2020 .
  7. ↑ Johanna Scheiblhofer, Wolfgang Schranz: Diverse nature in Hietzing. (PDF) Biosphärenpark Wienerwald Management GmbH, December 2019, pp. 133-134 , accessed on January 3, 2020 .
  8. ↑ Johanna Scheiblhofer, Wolfgang Schranz: Diverse nature in Hietzing. (PDF) Biosphärenpark Wienerwald Management GmbH, December 2019, pp. 32 and 62 , accessed on January 3, 2020 .
  9. ↑ Johanna Scheiblhofer, Wolfgang Schranz: Diverse nature in Hietzing. (PDF) Biosphärenpark Wienerwald Management GmbH, December 2019, p. 106 , accessed on January 3, 2020 .
  10. ↑ Bridge Information Vienna. Vienna Bridge Construction and Foundation Engineering (Municipal Department 29), Municipal Authority of the City of Vienna, accessed on January 3, 2020 .