Herrenwieser Schwallung
| Herrenwieser Schwallung | |||||||||
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| Coordinates | 48 ° 39 '19 " N , 8 ° 17' 26" E | ||||||||
| Data on the structure | |||||||||
| Construction time: | 1844 | ||||||||
| Data on the reservoir | |||||||||
| Total storage space : | 25th 000 m³ | ||||||||
| Catchment area | 9.6 km² | ||||||||
| Particularities: |
Schwellsee, drained today |
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The Herrenwieser Schwallung is a dam made of red sandstone near Herrenwies in the Black Forest , built between 1844 and 1847 , which dammed the water of the Schwarzenbach into a swell pond. At the drift they let it off and used it to wash down the felled wood. Today the dam serves as a bridge over the Schwarzenbach.
technology
Up until 1844 there was a flood of wood in the same place. However, since it was very difficult to maintain, it was replaced by the red sandstone building that still stands today under the direction of the Weisenbach master mason Johann Belzer . The individual stones are worked very precisely and are set without binding agents , the structure was completed by precisely fitting, wedged keystones .
The dam stands at a valley height of approximately 708 m above sea level. NHN , is approx. 20.5 meters wide and 67 meters long at the foot and could hold back 20,000 to 25,000 cubic meters of water.
Timber transport
The tree trunks to be cut were pulled by horses on plumb paths from the mountains to the raft room on the valley side of the Schwallung and stored there. By quickly opening the two lock gates , the tree trunks were swept into the Murg Valley . Raft men used raft poles to loosen trunks that had jammed. This work on the Trift was dangerous and attracted onlookers from the surrounding area, for example from nearby Baden-Baden .
Further down the Murg in Gernsbach and Hörden , the tree trunks were tied to rafts and then rafted to the Rhine , where they were connected to form larger trading rafts that were taken to Holland for sale.
literature
- Karl Friedrich Viktor Jägerschmid : Das Murgthal: especially with regard to natural history and statistics , 1800, pp. 93–98 (description of the wooden previous building; digitized ).
Individual evidence
- ↑ Max Scheifele : Die Murgschifferschaft - History of the raft trade, the forest and the timber industry in the Murgtal . Casimir Katz Verlag, Gernsbach 1988, ISBN 3-925825-20-7 , p. 282.
