Upper Großhartmannsdorfer pond
| Upper Großhartmannsdorfer pond | |||||||||
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| Coordinates | 50 ° 47 '2 " N , 13 ° 19' 35" E | ||||||||
| Data on the structure | |||||||||
| Construction time: | 1591-1593 | ||||||||
| Height above valley floor: | 12.95 m | ||||||||
| Height above foundation level : | 13.95 m | ||||||||
| Height of the structure crown: | 534.60 m | ||||||||
| Building volume: | 92,500 m³ | ||||||||
| Crown length: | 531 m | ||||||||
| Crown width: | 9.70 m | ||||||||
| Data on the reservoir | |||||||||
| Altitude (at congestion destination ) | 533.31 m above sea level | ||||||||
| Water surface | 21 ha | ||||||||
| Storage space | 0.94 million m³ | ||||||||
| Total storage space : | 0.966 million m³ | ||||||||
| Catchment area | 1.58 km² | ||||||||
The Obere Großhartmannsdorfer Teich is a dam of the Revierwasserlaufanstalt Freiberg (RWA) in Saxony . It was created between 1591 and 1593 near Großhartmannsdorf for mining in the Freiberg Revier and is connected to other RWA ponds via artificially created ditches and florets . Water from the RWA is transported via a raw water transfer to the Lichtenberg dam and on to the Klingenberg dam , and thus used to supply drinking water from Freiberg to Dresden . The dammed natural water is the Großhartmannsdorfer Bach (or Oberteichbach). The middle and lower Großhartmannsdorfer ponds are very close by . It is part of the Fauna-Flora-Habitat Freiberg Bergwerksteiche .
history
Around 1524 the establishment of the Revierwasserlaufanstalt began in order to be able to supply the water wheels of the mines with sufficient impact water. The dam was built between 1591 and 1593. Since the pond did not have enough water due to its location near the Mulde - Flöha - Wasserscheide via the Oberteichbach, it was reinforced with water from the Saidenbach in 1607 via the Obersaidaer artificial ditch and finally in 1882 from the Flöha. Its drainage takes place via the Kohlbach artificial moat .
Between 1778 and 1782 the dam was raised by 2.5 cubits (= 1.42 meters), but this caused significant problems with the tightness of the structure. In 1888 the dam was examined by Otto Intze , after which it was repaired and raised by one meter from 1890 to 1895. In the course of these measures it was discovered that the dam seal was not connected to the watertight subsurface at the time. This problem has also been resolved since 1910.
The dam
The barrier structure is an earth dam with a clay seal and a stone layer on the water side ( Tarras wall ). Due to its crown length of more than 500 meters at a height of more than 10 meters, the Obere Großhartmannsdorfer Teich is one of the "large dams" in Germany. The dam and the reservoir were renovated several times, most recently in 1910 and 2000/2001.
Freetime activities
There are hiking and fishing opportunities, but no tourist facilities on the lake. There is also a lookout point with a display board. On the day of the memorial you can visit the dam crown and the harrow houses as evidence of historical mining. At this pond there is a biotope worth protecting .
Others
The operator of the pond is the state dam administration of the Free State of Saxony . In addition to drinking water, the pond is also used for fishing, nature conservation and a cultural monument.
See also
Individual evidence
- ↑ Konrad Voppel: The landscape of the Ore Mountains under the influence of ore mining . In: Scientific publications of the Deutsches Museum für Länderkunde. New episode . No. 9 , 1941, pp. 34 .
Web links
- Information about the dam from the Saxon state dam administration
- Dams directory of the LfUG Saxony
- Flyer Upper Großhartmannsdorfer Pond of the State Reservoir Administration (PDF; 230 kB)