Deesbach Forebay

Housed in the bottom outlet bauzeit union diversion tunnel

The pre-dam Deesbach is the Leibis - light in front. It is located in Lichtetal, near the villages of Deesbach, light, Meura and Unterweißenbach in the district Saalfeld- Rudolstadt, Thuringia. It was put into operation in 1991 and dammed the light.

Use / Function

With the construction of Leibis - light began long after completion of the pre-dam. This, however, was planned from the beginning as a pre-dam and not for direct drinking water supply. She has temporarily taken over the function of a dam, because from 1992 to 2005 had to be supplied with drinking water from more than 100,000 inhabitants in the district of Saalfeld -Rudolstadt and Saale- Orla-Kreis. 2005 authorization for temporary raw water intake expired. After commissioning the Leibis - light in 2008, the pre-dam Deesbach took over now finally its actual function as pre-dam ( pre-treatment, sedimentation). She is now dammed air side by the main lock.

Dam / Buildings

The dam is a rockfill dam with asphalt concrete from Posidonia skin seal of two seal layers, a base layer and a drainage layer. The spillway consists of a crown assault on the right slope with a collection and spillway chute that leads into a stilling basin. The raw water was taken through two inlets, one of which has a pivoting tube, with the 18,000 m³ could be taken per day. About a 3.5 km long steel pipeline DN 500, which was laid at the base of the current storage space of the main dam and the eleven -kilometer " light tunnel " I and II, the water for drinking water treatment plant pointer home was out at Bad Blankenburg, in the mid-2008 the raw water of Leibis / light is cleaned.

Others

The pre-dam is also often used for fishing. It is, however, only be reached on foot or by bike, along the main dam of Unterweißenbach from or along the tributaries of Deesbach ago. Also from Fröbelturm a path is signposted.