Trieste

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Trieste
Triesting near Berndorf (with Margaretenkirche)

Triesting near Berndorf (with Margaretenkirche)

Data
location Lower Austria
River system Danube
Drain over Schwechat  → Danube  → Black Sea
source East of the gorge height , northwest of Kaumberg in the Vienna Woods,
48 ° 4 ′ 6 ″  N , 15 ° 52 ′ 20 ″  E
Source height 618  m above sea level A.
muzzle At Achau in the Schwechat coordinates: 48 ° 4 '52 "  N , 16 ° 23' 57"  E 48 ° 4 '52 "  N , 16 ° 23' 57"  E
Mouth height 172  m above sea level A.
Height difference 446 m
Bottom slope 7.4 ‰
length 60 km
Catchment area 388 km²
Right tributaries Further Bach
Small towns Berndorf , Schwechat
Communities Kaumberg , Altenmarkt , Weissenbach , Pottenstein , Hirtenberg , Enzesfeld , Leobersdorf , Schönau an der Triesting , Günselsdorf , Teesdorf , Tattendorf , Oberwaltersdorf , Trumau , Münchendorf

The Triesting is a river in the southeastern Vienna Woods . It flows into the less watery Schwechat near Achau and belongs to the catchment area of ​​the Danube . It has a length of 60 km.

Surname

The name "Triesting" is probably derived from the old Slavic word tresk (sound, strike, burst) and means, for example, Lärmbach or Tosebach . According to other assumptions, the name could also be derived from the Latin tristis , which means ominous, dangerous.

course

Source and upper course

Confluence of the two largest source streams of the Triesting: from the left the Stützenreithbach, from the right the Triestingquellbach
Triestingquellbach receives a tributary from another stream over a small waterfall

The Triesting arises from the confluence of several named and unnamed source streams, some of which only carry water seasonally (snowmelt, rain, etc.). A source of the Triesting can therefore only be identified with difficulty. The most important sources are in the woods on the southwest slope of the Schöpfl massif between Kaumberg in the Lilienfeld district and St. Corona am Schöpfl, Altenmarkt an der Triesting in the Baden district . The Triesting receives its first major tributary, the Stützenreithbach, near the road over the Klammhöhe, and shortly afterwards the Wittenbach flows into it. Between these named tributaries, a few unnamed streams flow on both the left and right sides. At the junction of the road through the gorge height from the Hainfelderstraße the chewing mountain stream flows from Gerichtsberg one coming who has previously taken the Fußbach and Laabach already the mirror Bach. As far as Altenmarkt, the Triesting takes in the Steinbach and Höfnerbach in addition to other unnamed streams. The confluence of the Coronabach and the Klosterbach from Klein-Mariazell flows between Thenneberg and Altenmarkt . The Triesting continues through Taßhof to Weissenbach an der Triesting , where the Further Bach flows from the right and the Nöstachbach from the left. The Haselbach flows into Fahrafeld and the Triesting continues through Pottenstein to Berndorf . This is where the Veitsauerbach flows, which rises on the Hohen Mandling and also takes in the Hernstein brook .

On the Berndorf AG premises, water is drawn from a works sewer to generate electricity. Shortly thereafter, the Buchbach flows into the west of the Striezelberg. At the train stop St. Veit / Tr. an unnamed stream flows from the Große Jauling into the Triesting. At the entrance to Hirtenberg , a small trickle of the so-called Pöllawiese between St. Veit and Großau flows into the rainwater sewer system . At the end of Hirtenberg, the Triesting leaves its valley on the border between the Vienna Woods and the Gutenstein Alps and continues to flow through the Vienna Basin .

Evening mood on the Triesting in Pottenstein

Lower course and mouth

On the border between Hirtenberg and Enzesfeld , the Triesting flood ditch , which was completed between 1924 and 1930, is branched off via a weir system . The Triesting itself flows a little further south around the ARED-Park and through the center of Leobersdorf, the flood protection channel runs a little further north around the ARED-Park and then roughly along Hainfelder Straße. The Triesting continues to flow past the Dornauer Mühle with its fish ponds, where it is also crossed by the Wiener Neustädter Canal . Shortly before Schönau an der Triesting flows into the flood protection channel, and the stream from the Heilsamen Brunnen still flows into it.

With the Triesting, the park of the Schönau Palace is also irrigated. The Triesting then flows in the flat landscape of the Vienna Basin through the towns of Günselsdorf , Teesdorf , Tattendorf , Oberwaltersdorf , Trumau and Münchendorf , where a canal for irrigation of the Laxenburg Palace Park branches off. After Münchendorf the Neubach branches off , which flows into the Mitterbach at Maria Lanzendorf , which in turn flows into the Schwechat at Zwölfaxing . The Triesting itself flows into the Schwechat at Achau , as does the Mödling / Mödlingbach and the Krottenbach. The Triesting still flows through the districts of Mödling and Bruck an der Leitha .

Downstream view from the former tow bridge of the Enz-Caro-Werke

Water flow

In fact, the Triesting is anything but a calm stream, although it sometimes carries very little water in summer. The Triesting has an average flow rate of 2.5 m³ / s near Hirtenberg. However, with persistent rainfall it can swell very strongly, which can lead to flooding again and again both in the Triestingtal and in flat terrain .

Weirs and canals

In the past, there were numerous weirs and factory channels on the Triesting for the adjacent industrial companies. Electricity was produced there for personal use. Today there is still a works canal with a small power station on the Berndorf AG premises, a weir and a small power station at the Leobersdorfer bypass next to the A 2 motorway, and a weir system with a works canal in Dornau . The remains and ruins of many other weirs and works canals are still visible, such as the facilities between the ARED Park and the premises of the Enz-Caro and Rexam companies .

In Hirtenberg, an underground channel branches off the Kromag premises, which is used to supply the Kromag and the Hirtenberger cartridge factory with utility water and to supply the fire brigades with extinguishing water.

The irrigation of the Laxenburg Palace Park is a curiosity . It does not get the water from the nearby Schwechat, but from Münchendorf from the Triesting. This water is led through an open canal - built in 1801 - along the LH 154 and crosses under the Schwechat at the slide bridge by means of a culvert . The castle park is then drained via the Hahnenwiesbach into the Schwechat.

Flood and protection

Rapidly rising floods with the risk of flooding often arise on the Triesting when rain clouds from the Vienna Basin move into the valley and near the mountains at the western end of the valley in the Furth-Kaumberg-St. Corona get stuck. Rain clouds from other directions have usually already rained out a bit and do not cause dramatic water levels. Automatic level measuring points have been set up in Fahrafeld and Hirtenberg , which automatically transmit the values ​​to the state warning center. In the event of an emergency, the Baden district administration has set up alarm and action plans that determine the amount of rain and water levels to be expected from which the police, fire brigades, mayors and the population will be notified. For a large part of the measures that are taken by the fire brigades together with the population, a system based on empirical values ​​has been established from which the respective level changes are observed.

Historical floods

  • 1846
  • July 1882
  • May 1940
  • July 1944
  • July 1966
  • July 1991 (tidal wave only in the upper reaches)
  • August 1997
  • June 2002 (rest of Lower Austria only in August)

Floods in 1944

The flood in 1944 was the worst flood disaster for the Triestingtal. On July 4, 1944, severe downpours caused flooding in the upper Triestingtal, in the Schöpfl and Further Tal area. The bottleneck in the valley above Pottenstein was blocked by driftwood and the Fahrafelder basin was transformed into a reservoir. The barrier broke and the masses of water rolled up to two meters high through the valley. 188 people, mostly foreign workers , are said to have died throughout the valley .

Division of work Triesting flood trench Triesting ; Right edge of the picture: Triesting main bed

Flood protection

Due to the recurring floods and the associated danger to the population, investments have been made in flood protection measures. For this reason, a flood protection channel, which began in 1846 near Leobersdorf and was completed between 1924 and 1930, was built to protect the town center.

At the beginning of the 21st century, a lot is being done for flood protection, especially in the upper reaches of the Triesting. The measures are designed for a hundred-year flood event and consist of a combination of river bed widening, flood concrete protection walls, retention areas and mobile flood closures.

In 2019, the construction of a retention basin in Fahrafeld with a volume of 750,000 cubic meters will begin. It is said to be the largest project in the river.

various

Web links

Commons : Triesting  - collection of images, videos and audio files

literature

  • Walter Rieck: Cultural geography of the Triestingtal . Dissertation. University of Vienna, Vienna 1956, OBV .
  • Fritz Hanauska: Heimatbuch der Marktgemeinde Hirtenberg . Market town of Hirtenberg, Hirtenberg 1980, OBV .

Individual evidence

  1. ↑ Above all, the lower Triestingtal was a center of the armaments industry, in which foreign workers were used to a large extent as a substitute for conscripted soldiers . The majority of the people doing foreign labor were forced laborers : prisoners of war of various nationalities, "displaced persons" from the Eastern and Balkan states who had been occupied by the German Wehrmacht in the course of the war (Rieck, p. 147).
  1. ↑ BMLFUW (Hrsg.): Area directory of the river areas: Danube area from the Enns to the Leitha. In: Contributions to Austria's Hydrography Issue 62, Vienna 2014, p. 117. PDF download , accessed on July 8, 2018.
  2. ↑ Hanauska: Heimatbuch der Marktgemeinde Hirtenberg , p. 127 f.
  3. ^ The federal state of Lower Austria. Its constitutional, economic, cultural and social development in the first decade of the inventory, 1920–1930 . Lower Austrian Provincial Government (Ed.), Vienna 1930, OBV , p. 200 f.
  4. ↑ Helmut Suck: Blog A little Laxenburg
  5. ↑ Hanauska: Heimatbuch der Marktgemeinde Hirtenberg , p. 106 ff.
  6. ↑ a b Helene Schießl, Erwin Schindler: Berndorfer Gemeindechronik, published on the occasion of 100 years of the city of Berndorf . Stadtgemeinde Berndorf (Ed.), Berndorf 2000, p. 24 ff.
  7. ^ Rieck: Kulturgeographie des Triestingtales , p. 150
  8. ↑ Hanauska: Heimatbuch der Marktgemeinde Hirtenberg , p. 108.
  9. ↑ Start of construction for flood basins in Triestingtal on ORF on December 9, 2018, accessed on December 9, 2018.