Aubach (Mitterwasser)

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Aubach
Klettfischerbach
Data
Water code AT : HZB: 2-126-002, GGN: 429618, 429619
location Linz - Ebelsberg , Upper Austria
Drain over Tagerbach  → Mitterwasser  → Ipfbach  → Danube  → Black Sea
River basin district Danube below Jochenstein (DUJ)
origin at Posch
48 ° 15 ′ 10 ″  N , 14 ° 22 ′ 38 ″  E 48 ° 14 ′ 41 ″  N , 14 ° 23 ′ 0 ″  E
muzzle at Raffelstetten coordinates: 48 ° 14 '35 "  N , 14 ° 23' 44"  E 48 ° 14 '35 "  N , 14 ° 23' 44"  E
Mouth height 246  m

length approx. 2 km
Communities Linz
two source runs ( ⊙ ); historical Altau ; also indicated confluence with the Mitterwasser.

The Aubach is a brook in the Ebelsberg district of Linz .

Run

The Auchbach flows in the Donauauen in the south of Linz, south of the mouth of the Traun. It forms east of Posch and Traundorf . The more northerly course begins in today's Linz- Pichling industrial park and is also called Klettfischerbach (after a historic farmstead there). It runs as a visible strip of grassland eastwards through the industrial area, and then southwards along Schwaigaustraße. The southern course begins in the old town center of Posch, where it draws the course of the Traundorfer Straße to the east, then southwards, and then turns again to the east, a little north parallel to the Westbahn. The brooks come together south of the old Schwaigau farmstead. A few hundred meters further on, at the city limits near Raffelstetten , the brook joins the Tagerbach . They seep away a little further, north of Raffelstetten and just before the Ausee , in the Au.

history

The stream goes to a dead channel of the port estuary of the River Traun in the intertwined tributaries of the Danube in Linz field back. This was in the 18th century, before the great Danube regulation , Altau , and was silted in the upper reaches. From Posch, in the area of ​​the green belt between this place and the industrial park, there was still a body of stagnant water, which streaked eastward in the area of ​​today's Tagerbach infiltration to a tributary of the Danube. This old arm is hardly preserved in the area. It was then placed in a Mühlbachgerinne converted (Altaubach) .

This bayou led well in the early Middle Ages to the major border in Raffelstetten where the barges, with the Salzkammergut came down salt, the Traun, were reloaded for further transport on the Danube or the Überfuhr on the northern bank of the Danube (see Raffelstetten Customs Regulations to 900 ). It then perhaps continued in the Kühwampe (today's Kronau and Kristeinbach).

ecology

The stream is completely blocked today. Despite the denaturation, its lower reaches are ecologically valuable. In the boggy ditch on the Tagerbach there are several amphibian species, including the rare spotted toad , many species of birds and a number of dragonflies, including the southern damsel . In Schilfgraben the homestead Schwaigau there is a stock of Euphorbia palustris , one of only two bills in Upper Austria.

Due to its natural value, the lower course from Schwaigaustraße to Tagernbach is part of the European Protected Area Traun-Donau-Auen ( fauna-flora-habitat area).

Individual evidence

  1. ↑ a b c d e f g h i The Josephinische Landesaufnahme (around 1780) lists Aldau , the Franciscan Cadastre (around 1830) gives Altau Bach and Altrachbach (different sheet, on the lower reaches in the Tagerbach area); the Klettfischer homestead can still be found in the Franciscan cadastre ; Stationing according to Wasserbuch 1.2488 km from Tagerbach upwards to Schwaigaustraße northwest of Schwaigau (here 42961 Aubach , this is the FFH area), southern run 429619 Aubach feeder , length 0.3484 km; Discharge route to HZB: Aubach → Mitterwasser → Danube, so that the Tagerbach flows into the Aubach, the Aubach catchment area goes to the Ausee, and the Ipfbach estuary is run as Mitterwasser, code 2-126-002 in this regard (information according to DORIS: Layer waters , stationing 1000 km and detail basins , booth 2018, all land record also online at Arcanum / Austrian State Archives: mapire.eu ).
  2. ^ A b c Friedrich Schwarz: Alluvial forest on the outskirts - a hike through the Schwaigau. 9th part of: Natural history hiking guide through the city of Linz. In: City of Linz, Naturkundliche Station (Ed.): ÖKOL - Journal for Ecology, Nature and Environmental Protection 26/2 (2004), keyword Klettfischerbach , p. 10, column 2 f, photos Fig. 24, p. 9 and Fig. 25, p. 10, full article p. 3–10, PDF on ZOBODAT there p. 7.