Mariatroster Bach

	Mariatroster Bach; upper course: Föllinger Bach; Lower course: Kroisbach
	The Mariatroster Bach at Purbergstrasse is in a largely natural state
	Data
location	Weinitzen and Graz , Styria , Austria
River system	Danube
Drain over	Grazbach → Mur → Drau → Danube → Black Sea
origin	The confluence of two source streams to the Föllinger Bach at the Weinitzner district of Fölling ; 47 ° 7 ′ 42 ″ N , 15 ° 31 ′ 20 ″ E
Source height	485 m above sea level A.
confluence	as Kroisbach under the crossing Mandellstr. - Sparbersbachgasse with the Leonhardbach to Grazbach Coordinates: 47 ° 4 ′ 2 ″ N , 15 ° 27 ′ 0 ″ E 47 ° 4 ′ 2 ″ N , 15 ° 27 ′ 0 ″ E;
length	12.4 km
Catchment area	17.15 km²
	Mariatroster Bach at Freihofanger

The Mariatroster Bach is a city brook in the Styrian capital Graz . During its course the Mariatroster Bach bears several names: it is called Föllinger Bach or Eisnitzbach during its upper course, Mariatroster Bach during its middle course and Kroisbach during its lower course .

The Mariatroster Bach rises south of Faßlberg. The source area is in the municipality of Weinitzen .

course

Upper course: Föllinger Bach or Eisnitzbach

The Föllinger Bach arises from the confluence of several small streams in the Weinitz district of Fölling. It follows Neusitzer Straße , while other unnamed feeders converge . The upper course is largely preserved and has water quality 2.

Middle course: Mariatroster Bach

From the height of the Mariatroster district Fölling, the Föllinger Bach is called Mariatroster Bach. In the area up to Tullriegelstrasse , the original stream bed with a multitude of meanders has been preserved. The brook then breaks through a Schöckl limestone clod and separates the Kogelberg from the Purberg . During its course through the Graz district of Mariatrost , several right tributaries come from the slab . These are the Tullbach consisting of Rettenbachklamm coming Rettenbach which Josef Bach , who Mariagrüner Bach and Faulbach .

The Mariatroster Bach has water quality 2 up to the confluence of the Josefbach, below water quality 2–3.

Since 1999, the first Graz Bach educational trail has been stretching for two kilometers along the Mariatroster Bach .

Lower course: Kroisbach

The Mariatroster Bach is called Kroisbach from the height of Hilnteich . During its course through the districts of Geidorf and St. Leonhard , it mainly flows in a concrete bed; From the site of the University of Music and Performing Arts , the water is completely built over. The Kroisbach continues underground under Mayffredigasse and Wastiangasse to the intersection of Sparbersbachgasse and Mandellstrasse . At this intersection it flows together with the Leonhardbach , which together form the Grazbach .

Ecological importance

Especially in the upper reaches up to Tullriegelstraße , the Mariatroster Bach or Föllingerbach is still largely in a natural state. The middle course is already heavily built, but the bottom of the valley is intact. The following fish species are found in the Mariatroster Bach: gudgeon , brown trout , minnow , brook loach .

The body of water is partially leased by the Styrian Nature Conservation Union in order to prevent harmful influences. The Mariatroster Bach is part of the Styrian landscape protection area No. 30.

Economic use

The Graz sugar factory , formerly at the current address Herdergasse 3, used the water of the Kroisbach by means of a pump that was operated with the first steam engine in Styria.

Web links

Commons : Mariatroster Bach - Collection of images, videos and audio files

L (i) worthwhile rivers. Wasserland Steiermark No. 1.1 / 2008 (PDF file, 5 MB)

1. Graz Bach nature trail. Mamilade excursion destinations

Landscape protection area No. 30: Northern and eastern hill country of Graz. (PDF file, 1.2 MB)

Nature Conservation Union of Styria: Mariatroster Bach reserve

Individual evidence

↑ Extract from the digital Styrian body of water index. State of Styria , accessed on July 6, 2018 .
↑ Extract from the digital Styrian body of water index. State of Styria , accessed on July 6, 2018 .
↑ Extract from the digital Styrian body of water index. State of Styria , accessed on July 6, 2018 .
↑ BMLFUW (ed.) : List of areas of the Austrian river basins: Mur area. In: Contributions to Austria's Hydrography Issue No. 60, Vienna 2011, p. 76. PDF download , accessed on July 6, 2018.

[1] Extract from the digital Styrian body of water index. State of Styria , accessed on July 6, 2018 .

[2] Extract from the digital Styrian body of water index. State of Styria , accessed on July 6, 2018 .

[3] Extract from the digital Styrian body of water index. State of Styria , accessed on July 6, 2018 .

[4] BMLFUW (ed.) : List of areas of the Austrian river basins: Mur area. In: Contributions to Austria's Hydrography Issue No. 60, Vienna 2011, p. 76. PDF download , accessed on July 6, 2018.