Silberteich

Silberteich
The northern side of the Silberteich
Location	Goslar, Lower Saxony, Germany
Construction began	1755
Operator(s)	Harz National Park
Dam and spillways
Type of dam	Dam
Impounds	Brunnenbach
Length	90 m
Reservoir
Total capacity	22,000 m3
Surface area	c. 1.4 ha
Maximum length	0.3 km
Maximum width	0.08 km
Power station
Operator(s)	Harz National Park

The Silberteich is a man-made reservoir, of a type called a Kunstteich, and lies on the upper reaches of the Brunnenbach stream between Braunlage and Sankt Andreasberg in the Harz Mountains of Germany. It was built as part of the historic Upper Harz Water Regale.

The pond is about 300 metres long with an earth dam about 8 m high. Material for the construction of the dam came from a quarry on the west bank immediately next to the embankment. Today the reservoir is located in the middle of the Harz National Park and is managed by the park authorities. A path runs along the eastern shore, in places along the water's edge. Otherwise paths have been kept some distance away in order to create a quiet zone for flora and fauna.

The reservoir was laid out in 1755, but even during its construction the height of the embankments was raised twice. It was designed was based on that of the 'new type' (neuer Bauart) of Upper Harz Pond with a watertight seal of grass sods. The surrounding embankments were initially too steep and had to be remodelled several times; apparently when the embankments were raised in height, their feet were not increased accordingly. The Silberteich was probably built to supply the ore mines to the southwest with water power. This was the Hoffnungsbergbau ("Mine of Hope") which was heavily financed by the mining authorities but which had to be finally closes around 1780 due to a lack of profitability. The Silberteich then found a new use supplying power to the Braunlage Blue Glass Factory (Braunlager Blaufarbenwerk), which was built on the site of the present-day Waldmühle. Originally the reservoir was called the Andreasberger Teich or Brunnenbacher Teich, where Teich means 'pond'. Its present name (which means 'Silver Pond') was chosen quite recently to make it more attractive as a tourist destination.

When walking along the footpath that grazes the eastern shore, the experienced eye will notice that this path is an old 'leat' (Hanggraben) that follows the contours of the hill. This was probably dug to be able to divert water past the reservoir during times of flooding.