Grenzgraben (Liesing)

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Grenzgraben
Grenzbach
Data
location Lower Austria and Vienna , Austria
River system Schwechat
Drain over Reiche Liesing  → Schwechat  → Danube  → Black Sea
source in Kalksburg
48 ° 8 ′ 51 ″  N , 16 ° 12 ′ 39 ″  E
muzzle in Kalksburg in the Reiche Liesing Coordinates: 48 ° 8 '10 "  N , 16 ° 13' 18"  E 48 ° 8 '10 "  N , 16 ° 13' 18"  E

length 1.4 km
Catchment area 40 ha

The Grenzgraben , also Grenzbach , is a brook in the Vienna Woods between Lower Austria and Vienna . He is a feeder of the rich Liesing .

course

The border ditch has a length of 1355 m with a height difference of 40 m. Its catchment area is 0.4 km². The brook has its source in the wooded area of ​​the Vienna Woods and runs along the border between the Lower Austrian municipality of Breitenfurt near Vienna and the Kalksburg part of the 23rd district of Liesing . In this case, it forms an up to 10 m deep ravine . It crosses under Breitenfurter Straße and joins Reiche Liesing on the left at Zangerlestraße.

There is no risk of flooding at the border ditch. In the event of a flood of the century , neither the infrastructure nor the resident population are affected.

history

The channel passage for the border ditch under the Breitenfurter Straße was built in 1970.

ecology

About 200 m from its mouth, the stream runs through a small fish pond, which also serves as spawning water for common toads ( Bufo bufo ). Fire salamanders ( Salamandra salamandra ) spawn in a pond a little further upstream . Black alder , ash and alluvial forests grow along the border trench .

See also

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. ↑ a b c Johanna Scheiblhofer, Wolfgang Schranz: Diverse nature in Liesing. Short version. (PDF) Biosphärenpark Wienerwald Management GmbH, October 2019, pp. 11 and 24 , accessed on 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. 7 , accessed on January 3, 2020 .
  4. ↑ Bridge Information Vienna. Vienna Bridge Construction and Foundation Engineering (Municipal Department 29), Municipal Authority of the City of Vienna, accessed on 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. 23, 44 and 89 , accessed on January 3, 2020 .