Wiental waterworks
The Wiental waterworks in Purkersdorf - “An der Stadlhütte” 3 ( Lower Austria ) initially only supplied industrial water. After the takeover by the Wiener Wasserwerke , drinking water for the city of Vienna and the communities in between was also obtained here until 2004 . The waterworks is located in the municipality of Purkersdorf, right near Untertullnerbach , where the responsible post office is also located. The associated lake - the Wienerwaldsee - is located between the communities of Tullnerbach, Preßbaum and Purkersdorf.
Previous projects
- In 1781 the architect Johann Wilhelm Beyer wanted to create a total of 12 ponds (six in the Mauerbach , three in the Dürr- and Großwien , one between Hietzing and the Feldmühle , one between Meidling and the Schönbrunn line , one at the pheasantry of the Schönbrunn garden )
- In 1782, the surveying officer, Colonel Jean-Baptiste Brequin de Demenge , suggested building a reservoir with weirs, locks and five elevator gates outside the Schönbrunn line.
However, since no financiers were found for either proposal, they were not implemented.
- In 1839 the architect Seitle , who was involved in the construction of the Kaiser-Ferdinand-Wasserleitung , is said to have suggested collecting the uselessly draining water in the area of the kk forest management.
- Around 1849 a certain Guggenbichler suggested creating reservoirs in the Vienna river basin in order to allow the water of the Vienna river to run off evenly.
- Shortly afterwards, a d´ Avigdor made a similar proposal . He wanted to build containers at Ober Sankt Veit .
Probably the most unrealistic project from today's perspective was created by Franz Atzinger and Heinrich Gravé for Franz Zaillner von Zaillenthal . In 1873 the latter received the pre-license for the construction of a shipping canal from Tulln on the Danube via Mauerbach and Hadersdorf to Vienna. As part of the creation of this shipping route, an aqueduct was to be built that would regulate Vienna and more favorable conditions for commercial use of the river were to be created.
Industrial water production
Although this project was not implemented in this form, it was the first time that the Vienna River was used to supply Vienna with water, and Franz Zaillner von Zaillenthal continued to pursue this goal.
In 1877 he sent an inquiry to the Sechshaus district authority as to whether the project of a water pipe was even permissible. When this was confirmed to him, Franz Zaillner von Zaillenthal began looking for donors. In 1878 he asked the Lieutenancy to grant him the exclusive right to use the Vienna River above Hütteldorf , as this would help him find financiers and facilitate contract negotiations.
Between October 29, 1879 and May 22, 1880, the first water law negotiations about the planned reservoirs Wolfsgraben Reservoir, Gablitz Reservoir, Dammbach Reservoir, Lower Mauerbach Reservoir and Upper Mauerbach Reservoir took place with interruptions.
The municipality of Vienna opposed this project. A constant flow rate of 11,360 cubic meters of water per day was required. Later there was also heated discussion about who owned the Wienflusswasser at all - Vienna took the position that this too, since it owned both the river bed and the banks in the city, was its property. Another point of contention was the right to bury the water pipes under the pavement of the city streets.
On June 1, 1880, the district administration of Sechshaus granted Franz Zailler von Zaillenthal permission to build and operate a water pipe by installing reservoirs and pipes to supply the western suburbs of Vienna with usable and drinking water from the entire area of the Vienna River and its tributaries above Hütteldorf under a number of conditions. In the meantime, however, the donors, for whom the negotiation had taken too long, had withdrawn.
As one of the most important conditions, the deposit of a deposit , could not be met for this reason , Franz Zailler von Zaillenthal applied several times for an extension of the deadline, which he was granted each time. In 1884 the concession for the construction of the Wiental waterworks was transferred to the stock corporation " Vienna-West-Water-Works-Compagnie Limited " in London .
Between 1887 and 1895, several further negotiations under water law took place on the detailed plans for the Wolfsgraben Reservoir, Dammbach Reservoir, Gablitzgraben Reservoir and the Mauerbach Reservoir, which resulted in repeated revisions of the plans.
In 1893 the concession was transferred from the “ Vienna-West-Water-Works-Compagnie Limited ”, which was in liquidation, to the Belgian “ Compagnie des Eaux de Vienne, Societé anonyme ” based in Brussels .
In 1895 the required bail was finally paid and the construction of the Wolfsgraben reservoir began with the construction of a 240 meter long earth dam and a maximum height of 13 meters. The dispute with the municipality of Vienna about being allowed to lay the pipeline under the streets of the municipality of Vienna had not yet been resolved.
The dispute over the right to be allowed to bury pipelines under the streets of the city of Vienna was to be decided between August 22, 1896 and March 12, 1897 in an official procedure and finally went as far as the Administrative Court. However, since a water supply contract had meanwhile been concluded between the City of Vienna and the “ Compagnie des Eaux de Vienne, Societé anonyme ”, the legal dispute was ended.
In this water supply contract dated July 8, 1898, the " Compagnie des Eaux de Vienne, Societé anonyme " assured the City of Vienna the delivery of a maximum of 25,000 cubic meters of usable water daily, with the city having to purchase an annual average of 10,000 cubic meters daily. The municipality of Vienna has committed itself to supplying private and industrial purposes - with the exception of food and luxury food factories - only usable water from the Wiental water supply.
After repeated filtration (originally Worms sand plate filter system (Fischer system), later sand plate filter Zurich system), the water was directed through a pipeline around 10 kilometers long into the Breitensee water tank of the Wiental water pipeline in Vienna-Penzing (Altebergenstraße 3), where it was passed through a Water meter was taken over by the municipality of Vienna. The originally granted right to also be able to supply drinking water had been withdrawn from the " Compagnie des Eaux de Vienne, Societé anonyme " by the authorities.
In the city itself, the utility water was delivered to end users via a pipeline network around 140 kilometers long ( main customs office tram station , water meter workshop of Wiener Wasserwerke, water meter factory Bernhardt and Sons (Meidling, Schönbrunner Strasse 173), ÖBB train station Hütteldorf , ÖBB water tower Laxenburger Strasse 2, Theresienbad Meidling, some other municipal baths and some private hydrants ) (as of 1927). In 1928 around 2.7 million cubic meters of water were delivered.
Between 1901 and 1903 the " Compagnie des Eaux de Vienne, Societé anonyme " was under administrative administration due to financial difficulties. In 1905 the construction of the Dammbach reservoir was decided, the construction of the other reservoirs was withdrawn, but this was contested by various bodies. Between August 1921 and 1927 the water supply was stopped due to a pending legal dispute.
Drinking water works
The water supply contract contained a gold clause which enabled the Belgian company to keep charging higher prices, so that the city of Vienna finally decided to purchase the Wiental waterworks. The purchase price of this was 20 million schillings, half of which had to be paid in Belgian francs . This transaction was resolved on November 14, 1957 by the Vienna City Council . On May 2, 1958, it became the property of the City of Vienna and was expanded to an average annual output of 7.2 million cubic meters by 1964.
In 2003, the Wientalwasserwerk supplied 3,482,070 cubic meters of water or 2.34 percent of the total drinking water pumped in 2003.
It is not known whether there was a certain ratio in the admixture of drinking water treated here to the water of the Second Vienna High Spring Water Pipeline . However, during the warm season of the year, those in charge always made sure that the cool spring water was not heated too much by the surface water warmed by the sun.
In 2004, drinking water production in the Wiental waterworks was stopped. The reason for this was that further investments would have been necessary to achieve or comply with increasingly strict quality requirements, the amount of which had no relation to the amount of water obtained and which would therefore have been uneconomical.
While the company buildings in Untertullnerbach are used by MA 31 as operations management for the Second Vienna High Spring Pipeline, the Wienerwaldsee has been used by MA 45 as a flood retention basin since the completion of necessary modifications. For this purpose, the target was lowered by about 2.5 meters.
On the opposite side of the street, at An der Stadlhütte 4 , the Wiental Water Technology Center (WTWt) has been located since 2010 . In this test laboratory, a cooperation between the Medical University of Vienna , the University of Veterinary Medicine, Vienna , the Austrian Institute of Technology and Wiener Wasserwerke researches the disinfection of drinking water using UV rays as UV-Team Austria in cooperation with manufacturers from all over the world .
aviation
With the failed attempt by Wilhelm Kress to take off with his self-made seaplane, this reservoir went down in Austrian aviation history .
Oddities
A curious incident occurred during the construction of the dam for the Wolfsgraben Reservoir. Heavy rains in May 1897 raised the fear of a dam breaking and so between Tullnerbach and Vienna the military set up cannons about one kilometer apart in order to quickly send a warning signal to Vienna in the event of an actual dam breaking. Such an accident did not occur, but the guard who was at what is now the Purkersdorf Sanatorium , fired a shot for an unknown cause and caused great excitement.
Individual evidence
- ↑ a b Felix Czeike (Ed.): Das Große Groner Wien Lexikon , Verlag Fritz Molden, 1974, ISBN 3-217-00293-8 , p. 844, "Wientalwasserleitung"
- ^ Vienna 1957: reports from November 1957
- ↑ drinking water
- ^ UV-Team Austria
literature
- The Wiental water pipeline - a contribution to the history of this company . Published by Moritz Zander, kk district captain for the Hietzing area (probably around 1906).
- The waterworks of the City of Vienna in 1927 . Vienna 1930, print “Thalia” (Josef Schweinberger).
- Ruth Koblizek, Nicole Süssenbek: Water in every citizen's house - Vienna's drinking water supply . MEMO Association for Historical Research , Vienna 2003, ISBN 3-9501238-2-2 .
- BASSENA employee information for Wiener Wasserwerke, 6th edition, September 2004.
- DEHIO Vienna - X. to XIX. and XXI. to XXIII. District . Anton Schroll & Co, Vienna 1996, ISBN 3-7031-0693-X .
Web links
- Site plan (The brown dash-dotted line shows the municipal boundaries and, to the north, the historic, curved course of the Vienna River.)
Coordinates: 48 ° 11 '4.4 " N , 16 ° 7' 28.3" E