Berzdorf Lake
| Berzdorf Lake | ||
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| Geographical location | Görlitz , Saxony ( Germany ) | |
| Tributaries | artificially through crossings from the Lausitz Neisse , Pließnitz and other small tributaries | |
| Drain | artificially by transferring to the Lusatian Neisse | |
| Places on the shore | Görlitz districts of Hagenwerder , Klein Neundorf , Tauchritz and the communities of Jauernick-Buschbach , Schönau-Berzdorf | |
| Location close to the shore | Goerlitz | |
| Data | ||
| Coordinates | 51 ° 5 '24 " N , 14 ° 57' 36" E | |
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| Altitude above sea level | 186 m above sea level NHN | |
| surface | 960 ha | |
| volume | 330 million m³ | |
| scope | 18 km | |
| Maximum depth | 72 m | |
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particularities |
flooded open-cast brown coal mine |
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The Berzdorfer See is located on the southern city limits of Görlitz in Upper Lusatia . It consists of the remaining hole in the former Berzdorf open-cast lignite mine, which was flooded until the beginning of 2013. The lake forms the southeast corner of the Lusatian Lake District . With its volume of around 330 million cubic meters and a water depth of max. 72 meters on an area of 960 hectares, it is one of the largest lakes in Saxony .
geography
The Berzdorfer See is about five kilometers long and two kilometers wide on the southern border of the city of Görlitz in Eastern Upper Lusatia . The Görlitz districts of Hagenwerder , Klein Neundorf and Tauchritz and the communities of Markersdorf and Schönau-Berzdorf on the own border the former open-cast mine. The sea water level is 186 m above sea level. NHN .
leisure offers
The Dresden Regional Council has approved the seasonal use of the open pit residual water with restrictions, so since August 2007 it has been possible to sail on Lake Berzdorf. Access for sailors is via the Tauchritz harbor and the slipway at the Blaue Lagune sailing base.
history
History of the open pit
The deposit is a tectonic deposit type. The basin is a tectonically northeast-southwest oriented ditch, which is limited at the edges by numerous faults with different strike directions. The deposit was heavily stressed by glacial ice in the Pleistocene , which had an impact on the geomorphological and geological properties of the basin.
The Berzdorf coal seam has an average thickness of 80 meters on the German side and an extension of about three by eight kilometers. In comparison, the seams in Niederlausitz are ten meters thick and about a hundred kilometers long.
Around 1835, the mining of lignite began south of Görlitz on the site of the former Berzdorf location , at that time still in underground shafts . In 1919 the site was converted to open-cast mining . In 1927 the mine was flooded for reasons of profitability. After the end of the Second World War in 1946, the opencast mine was reactivated. The groundwater lake was drained and lignite mining was strongly promoted in a three-shift system .
In 1958, the Hagenwerder I power plant was commissioned to use the lignite on site . The space required for the open-cast mine was great: from 1962 to 1965, Berzdorf was relocated to Schönau-Berzdorf. During these years, Plant II was commissioned, Plant III followed in 1970. The open-cast mine developed into a large open-cast mine, with production rates of up to 7 million tons of lignite per year being achieved. In terms of technology, conveyor belt operation replaced the complex train operation and modern large excavators extracted up to 50,000 tons of coal per day. During the peak of funding in the 1980s, the open pit was the place of work for around 7,000 people. In 1988 the town of Deutsch-Ossig also had to give way to coal mining.
After more than 150 years of lignite mining, coal production was stopped in December 1997. There remained a recoverable amount of lignite of 60 million tons. The amount would have made it necessary to convert the power plant to desulfurization technology in the estimated 10 to 15 years . This would not have been economically viable.
The excavator 1452 can be visited as a technical monument of this time .
Development to a local recreation area
The Lusatian and Central German Mining Management Company transformed the post-mining landscape into a local recreation area. In 2002, flooding of the mine hole with water from the Pließnitz began. The flooding from the Neisse with a one kilometer long transfer through two 1.6 meter thick pipes began on February 18, 2004. The maximum flow rate was 10 cubic meters per second. Branch water from the Neisse can be taken from a minimum flow rate of 13.3 cubic meters per second. On February 6, 2013, the LMBV announced that the flooding target of Lake Berzdorf (186 m above sea level) had been reached. The management water level is 186.2 m above sea level. NHN.
Like many other former opencast mining holes, the lake is used for recreational purposes in addition to the visual landscaping. A boat harbor with a 150 meter long quay wall was built in the south. There are several viewpoints with information boards along the 18-kilometer lakeshore path, including at Deutsch-Ossig and Klein Neundorf.
The bathing beach on the north bank (northeast beach) has been accessible since the end of 2018. The bathing areas on the so-called Blue Lagoon on the south side and on the east side in Hagenwerder were released in 2010. A golf course and a campsite are in the planning stages.
In 2008, the over twenty meter high Neuberzdorfer Höhe observation tower was completed on the west bank on Neuberzdorfer Höhe .
Individual evidence
- ↑ Current flooding data. (No longer available online.) Berzdorfersee.eu, archived from the original on March 26, 2012 ; Retrieved December 16, 2011 .
- ↑ Flooding data. berzdorfersee-info.de, archived from the original on September 15, 2010 ; Retrieved February 7, 2013 .
- ↑ Sailing on the Berzdorfer See. segeln-am-berzdorfer-see.de, accessed on April 15, 2016 .
- ↑ Curt Thomas Zimmer: The first sailing boat is on the way on the Berzdorf Lake . In: Saxon newspaper . August 20, 2007 ( sz-online.de ).
- ↑ Securing embankments close to the surface in an opencast mining sequence (PDF; 302 kB)
- ↑ An eventful history. (No longer available online.) Berzdorfersee.eu, archived from the original on March 26, 2012 ; Retrieved December 16, 2011 .
- ↑ Anett Böttger: Neisse now feeds Lake Berzdorf . In: Saxon newspaper . February 18, 2004 ( sz-online.de ).
- ↑ Flooding ended successfully ( memento from February 23, 2013 in the Internet Archive ), Oberlausitz TV, February 6, 2013
- ↑ The easternmost, artificial area, the Berzdorfer See reaches its target water level . In: Segler-Zeitung , issue 4/2013, p. 92, Service-Verlag GmbH, Lübeck 2013, ISSN 0930-2891
- ↑ Off to the Berzdorfer See! In: Saxon newspaper . June 28, 2011 ( sz-online.de ).
literature
- Joachim Bender: Recultivation and renaturation in the Berzdorf opencast mine. in: Reports of the natural research society of Upper Lusatia. Volume 11, Görlitz 2004, pp. 17–29 ( digitized version )
- Olaf Tietz, Alexander Czaja: The lignite deposit Berzdorf - geology, geological substrates and palaeobotany. Volume 11, Görlitz 2004, pp. 57-76 ( digitized version )
