Krebsbach dam
| Krebsbach dam | |||||||||
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| Coordinates | 50 ° 42 '35 " N , 12 ° 13' 26" E | ||||||||
| Data on the structure | |||||||||
| Construction time: | 1962-1964 | ||||||||
| Height above valley floor: | 12.9 m | ||||||||
| Height above foundation level : | 18.8 m | ||||||||
| Height of the structure crown: | 298.5 m | ||||||||
| Building volume: | 91 200 m³ | ||||||||
| Crown length: | 186 m | ||||||||
| Crown width: | 5.1 m | ||||||||
| Slope slope on the air side : | 1: 1.5 | ||||||||
| Slope slope on the water side : | 1: 1.5 | ||||||||
| Data on the reservoir | |||||||||
| Altitude (at congestion destination ) | 295 m | ||||||||
| Water surface | 7 ha | ||||||||
| Storage space | 0.32 million m³ | ||||||||
| Total storage space : | 0.43 million m³ | ||||||||
| Catchment area | 14.1 km² | ||||||||
| Design flood : | 8.34 m³ / s | ||||||||
The Krebsbach dam near Teichwolframsdorf in the Greiz district was located in eastern Thuringia on the Krebsbach , a tributary of the White Elster . It was built in the early 1960s as a water storage tank for uranium mining in the Wismut and demolished in 2007.
dam
The barrier structure was a stone embankment dam with a central clay core seal and steel sheet pile wall. The sheet pile wall was only installed later because the core was not tight enough. The building material of the support body consisted of diabase , the seal of alluvial clay . There is phyllitic slate in the subsoil . The flood relief was on the right slope, the bottom outlet about in the middle of the dam.
Dismantling
After the lower Herbringhauser dam , the Krebsbach dam is the second dam in Germany that was dismantled because it was no longer needed. It didn't even have a flood protection effect .
A few years ago the water level was lowered by creating a 30 m wide gap as an overflow on the left side of the dam. This reduced the traffic jam by half. In March 2000, the Thuringian dam administration submitted the planning approval application for the dismantling of the Krebsbach dam. In 2002 the documents were publicly displayed. The dismantling of the dam began in March 2007. A meandering river course was created. The aim of the renovation is a good condition according to the European Water Framework Directive .
See also
literature
- Helmut Deubner, among others: Dams in Thuringia. Published by the Thuringian dam administration. Progress publishing house, Erfurt 1993.
- Quent Mehlhorn, Markus Ottenbreit, Bruno Walter: Initiation, course and experience of the planning approval procedure for the dismantling of the Krebsbach dam. In: Wasserwirtschaft 95, 2005, 1–2, pp. 73–78.