Fischbach (Ötztaler Ache)
| Fischbach | ||
 The upper reaches of the Fischbach in the rear Sultzal |
||
| Data | ||
| Water code | AT : 2-8-92-54 | |
| location | Tyrol , Austria | |
| River system | Danube | |
| Drain over | Ötztaler Ache → Inn → Danube → Black Sea | |
| origin | in the Sulze in the Stubai Alps 47 ° 1 ′ 43 ″ N , 11 ° 4 ′ 50 ″ E |
|
| Source height | 2172 m above sea level A. | |
| muzzle | in Längenfeld in the Ötztaler Ache Coordinates: 47 ° 4 ′ 16 ″ N , 10 ° 57 ′ 45 ″ E 47 ° 4 ′ 16 ″ N , 10 ° 57 ′ 45 ″ E |
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| Mouth height | 1168 m above sea level A. | |
| Height difference | 1004 m | |
| Bottom slope | 77 ‰ | |
| length | 13 km | |
| Catchment area | 82.6 km² | |
| Left tributaries | Roßkarbach, Sulzkarbach | |
| Right tributaries | Schrannbach, Winnebach, Griesbach | |
| Communities | Längenfeld | |
The Fischbach is a 13 km long right tributary of the Ötztaler Ache in Tyrol , which flows through the Sulztal .
course
The Fischbach arises from the confluence of several source streams in the Sulze in the Stubai Alps . The most important source streams are the approximately 2 km long Wannenbach , which rises from the Sulztalferner and the 2.5 km long Schwarzenbergbach , which is fed by the Schwarzenbergferner and the Bockkogelferner . The Fischbach initially flows northwards, below the Amberger Hütte it turns to the northwest and takes the Sulzkarbach from the left. It flows through the Sulztal, picks up the Winnebach fed by the Bachfallenferner from the right, shortly afterwards passes the village of Gries in the Sulztal and runs in a narrow gorge before the exit into the Ötztal . In Längenfeld , where it separates the districts of Ober- and Unterlängenfeld, the Fischbach flows into the Ötztaler Ache. There he dumped an alluvial cone and pushed the Ötztaler Ache to the western edge of the valley.
Catchment area
The natural catchment area of the Fischbach is 82.6 km² and includes around a dozen glaciers, which together cover an area of 12.1 km² (as of 1988) and thus make up 15% of the catchment area. The highest point in the catchment area is the Wardrobe at 3497 m above sea level. A.
Outbreaks and Protections
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The Fischbach used to be feared for flood events with large mudslides , the so-called eruptions. Particularly when there was heavy rainfall or heavy snow and glacier melt on the upper reaches of the Fischbach and its tributaries, the water flow increased rapidly in a short time, which meant that a lot of debris was transported with the water masses into the Ötztal. The flood of the century is 125 m³ / s. The first outbreak was documented in 1340, the last major catastrophe so far occurred in June 1965. Houses and fields in Längenfeld were destroyed each time. In July 1678, the flooding of the Fischbach coincided with an eruption of the Rofener Eisseee , which caused particularly severe devastation in the lower Ötztal and Inntal. The eruption in June 1725 as a result of heavy snowmelt in the glaciers also had an impact as far as the Inn Valley, with parts of the city in Innsbruck being under water.
Protective structures, so-called arks, were built early on. In 1700 the villagers built the "church" to protect the church and the village of Oberlängenfeld. Subsequently, the population built 3 to 4 m high stone dams on both sides of the Fischbach from the mouth to the exit from the gorge, which were repeatedly damaged and rebuilt. Since these self-help measures were not enough to prevent mudslides, the Fischbach dam with a 12 m high dam was built at the end of the gorge between 1923 and 1928, which can hold back up to 200,000 m³ of rubble.
Langenfeld a 1969 by reminding Erich Keber created statue of St. Johannes Nepomuk to the devastating outbreaks.
Power plant plans
In 2004, TIWAG's plans to build a reservoir in the Sulztal became known . For this purpose, the Fischbach in the area of the Amberger Hütte was to be dammed with a 150 m high dam and the reservoir with a capacity of 120 million m³ was to be filled with water from fifteen Ötztal glacier streams via a ring main. The power plant was to be built near Aschbach in the Ötztal between Sölden and Längenfeld. However, massive resistance caused TIWAG to distance itself from the Sulztal storage site. The current plans (as of April 2013) now provide for a diversion of the Fischbach and its feeders Schranbach and Winnebach into the planned new Kühtai storage facility of the Sellrain-Silz power plant . The Fischbach is said to be below the Amberger hut at about 2100 m above sea level. A. be taken.
Web links
- Water level of the Fischbach at the Gries gauge in Sulztal (Hydrographischer Dienst Tirol)
Individual evidence
- ↑ a b c TIRIS - Tyrolean regional planning and information system
- ↑ Federal Ministry for Trade and Reconstruction (Ed.): Österreichischer Wasserkraft Kataster: Ötztaler Ache . Vienna 1948, p. III / 2a 2 ( digitized version )
- ^ Max H. Fink, Otto Moog, Reinhard Wimmer: Flowing waters - natural areas of Austria . Federal Environment Agency Monographs Volume 128, Vienna 2000, p. 49 ( PDF; 475 kB )
- ↑ a b Michael Posch: Renovation of double-shell masonry by injection using the example of the Fischbach dam, Gde. Längenfeld, Ötztal, Tyrol . In: Zement und Beton, No. 3, 2008, pp. 28–31 ( PDF; 2 MB )
- ↑ Tirol Atlas: Natural History Tyrol
- ^ E. Leys, O. Reinwarth: Effects of the glaciers and the glacier runoff on the torrent and avalanche danger and their consideration in the hazard zone plans. In: Interpraevent, Volume 1 (1975), pp. 345–357 ( PDF; 3.3 MB )
- ↑ Chronicle of the Ötztal ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. on oetztal.at
- ↑ Schumacher, Wiesauer: wayside shrine with sculpture St. Johannes Nepomuk. In: Tyrolean art register . Retrieved August 4, 2016 .
- ^ Office of the Tyrolean Provincial Government, Institute for Social Ecology, Austrian Ecology Institute, Joanneum Research (Ed.): Technical review of the TIWAG options report on possible locations for future hydropower use in Tyrol. Synthesis report. Innsbruck, Graz and Vienna 2005 ( PDF; 532 kB )
- ↑ Tiwag wants four reservoirs in the Ötztal . The July 8, 2004 standard
- ↑ Action alliance Ötztal (ed.): The consequences of a power plant chain in the Ötztal (PDF; 426 kB)
- ↑ Expansion of the Kaunertal power plant presented , tirol.orf.at of February 4, 2011
- ↑ TIWAG: Kühtai storage power plant project area ( Memento of the original dated February 24, 2013 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
