Muldenberg dam
| Muldenberg dam | |||||||||
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| Coordinates | 50 ° 24 '37 " N , 12 ° 24' 5" E | ||||||||
| Data on the structure | |||||||||
| Construction time: | 1920-1925 | ||||||||
| Height above valley floor: | 20.9 m | ||||||||
| Height above foundation level : | 24.2 m | ||||||||
| Height of the structure crown: | 714.56 m | ||||||||
| Building volume: | 76,000 m³ | ||||||||
| Crown length: | 525 m | ||||||||
| Crown width: | 4 m | ||||||||
| Radius of curvature : | 400 m | ||||||||
| Data on the reservoir | |||||||||
| Altitude (at congestion destination ) | 713.45 m | ||||||||
| Water surface | 92.0 ha | ||||||||
| Storage space | 5.30 million m³ | ||||||||
| Total storage space : | 6.21 million m³ | ||||||||
| Catchment area | 20.3 km² | ||||||||
| Design flood : | 21 m³ / s | ||||||||
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The Muldenberg dam is a dam in the Vogtland district of the Free State of Saxony . It supplies around 100,000 people in 21 locations with drinking water and also serves to protect against floods .
Tributaries
In addition to a few unnamed streams, the dam is mainly fed by two rivers and one stream: the Rote Mulde from the west, the White Mulde from the south and the Saubach from the east . The first two initially flow into the forecourt, which has the particular function of absorbing the debris carried along . The former confluence of the Roter and Weißer Mulde to the Zwickauer Mulde lies at the bottom of the dam. The outflow from the dam is the Zwickauer Mulde.
Dam wall
The dam of the dam Muldenberg is a curved gravity dam from rubble masonry after the intze principle . It was built from 1920 to 1925 near Schöneck in Vogtland , south of the eponymous town of Muldenberg , and put into operation in 1925. It has the longest crest of all dams in Saxony. Of its 525 m, only 476 m are visible. An inspection corridor in the dam wall was only installed during the reconstruction of the 90-meter-long section of the wall that was destroyed by an explosion in 1945. It also had the function of a drainage tunnel. It was not extended by 200 meters until the 1960s. The dam has a fixed overflow in the middle of the wall for high water. It then flows into a stilling basin at the foot of the dam.
Redevelopment
In June 2009, the dam after the renovation from 2001 to 2007 and is sample storage has been returned to service and was briefly also fully dammed. Now a flood retention area of 0.85 million cubic meters is being kept free again. During the renovation, the dam wall was reinforced with concrete on the water side. It was anchored underground with 19 steel anchors in the area of the flood relief . The top of the wall, the air side, the overflow and the valve houses as well as all operating equipment and the measuring devices were renewed. For its own power supply, the dam has a power plant at the outlet that generates 15 kilowatts of electricity at a flow rate of 100 liters per second. As part of the renovation work, two pre-dams for water purification of 200 and 270 m in length were built at the inlets of the Roter and Weißer Mulde . In the course of the most recent renovation up to 2007, the dam received a variable extraction system. It makes it possible to always use the best quality water.
The renovation costs totaled around 25 million euros.
Explosion accident
On May 13, 1945, a serious accident occurred. When ammunition was sunk into the dam, there was an explosion that severely damaged the barrier wall. Two US soldiers and eleven German prisoners of war were killed. Their common grave is about 200 m east of the accident site. After the accident, the dam was largely empty within six days. There was no damage to the settlements below. The dam was rebuilt between 1946 and 1950.
leisure
Swimming, fishing and recreational sports in the reservoir are not possible to protect the drinking water, but you can hike around the reservoir and visit the dam wall. The top of the wall is also accessible for pedestrians and cyclists. On the occasion of the 90th anniversary of the dam, the Saxon dam administration issued a hiking map for the area around the Muldenberg dam in 2015. Below and above the dam there are several smaller basins that were previously created for rafting wood. Today every year on Ascension Day there is a show rafting organized by the Vogtland rafting association Muldenberg e. V. organizes.
literature
- The eastern Vogtland (= values of the German homeland . Volume 59). 1st edition. Verlag Hermann Böhlaus Successor, Weimar 1998, ISBN 3-7400-0938-1 , p. 213.
See also
Web links
- Information about the dam from the Saxon state dam administration
- Repair of the Muldenberg dam
- Information about the dam at Structurae
- Repair of the Muldenberg Dam with DYWIDAG permanent rock anchors , accessed on April 11, 2016
- Muldenberg dam as a tourist destination
- talsperren.net
Individual evidence
- ↑ Topographic map 1: 25,000 - Vogtland, Schöneck and Klingenthal -, edition with hiking and ski trails, sheet 5, published by the state enterprise Geobasisinformation und Vermessung Sachsen, 2nd edition, Dresden 2011
- ↑ a b c d e f Information from the dam administration from 2015 [1] , accessed on October 4, 2015
- ↑ Information on the dam of the Saxon dam administration
- ^ The eastern Vogtland (= values of the German homeland . Volume 59). 1st edition. Verlag Hermann Böhlaus Successor, Weimar 1998, ISBN 3-7400-0938-1 , p. 214.
- ^ Website of the association , accessed on March 1, 2016