Lorch-Waldhausen flood retention basin

Lorch-Waldhausen flood retention basin
Tributaries: Rems Drain: Rems Major cities nearby: Lorch
Baden-Wuerttemberg , Germany
Coordinates	48 ° 47 '42 "  N , 9 ° 39' 40"  E Coordinates: 48 ° 47 '42 "  N , 9 ° 39' 40"  E
Data on the structure
Lock type:	Earthfill dam
Construction time:	2006-2008
Height above valley floor:	6 m
Height above the river bed :	10.20 m
Crown length:	1 400  m
Data on the reservoir
Water surface	31.7 ha
Total storage space :	670,000 m³

Lorch-Waldhausen flood retention basin, flooded on June 1, 2013.

The Lorch-Waldhausen flood retention basin , also known as the Lorch-Waldhausen flood retention area , was built between 2006 and 2008. It is located on the Rems above Waldhausen and below Lorch . After the Schorndorf-Winterbach flood retention basin and the Reichenhof / Schwäbisch Gmünd flood retention basin , the basin is the third retention basin built by the Rems water association and is listed under number 9. It was inaugurated on May 30, 2008.

Normally the storage space is empty. It is said to be filled with water from a 20-year flood , with flood troughs filling first . Damming and emptying together should take a maximum of 21 hours. The basin, like the other basins of the flood association, was dimensioned in such a way that it can hold back a 100-year flood to such an extent that there is no flooding directly below the basin .

A base ramp was built to make it easier for aquatic life to negotiate the facility . The Lorcher Baggerseen nature reserve above was taken into account in the construction and operational design.

The cost of the retention basin was around 10.2 million euros, of which the State of Baden-Württemberg contributed 70%. 200,000 t of earth and 1,300 m³ of concrete were used for the construction. The height of the dam above the normal water level is 10.20 m, the maximum height above the valley around 6 m.

When, contrary to expectations, the level of the Rems in Schorndorf rose against expectations during the flood of January 13, 2011 , the gates were closed manually and water was dammed up to prevent the Schorndorf-Winterbach basin, which had reached its capacity limit, from having to increase the drain which would have led to the risk of flooding in the communities below the Schorndorf-Winterbacher Basin. The level at the Lorch-Waldhausen basin itself would not have required any damming.

Web links

Commons : Flood retention basin Lorch-Waldhausen  - Collection of images, videos and audio files

Individual evidence

1. ↑ Lorch-Waldhausen flood retention area / planning approval decision is issued  ( page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. , Ostalbkreis, accessed on January 31, 2010  
2. ^ Waldhausen flood retention basin , City of Lorch, accessed on January 31, 2010
3. ^ Report of the municipal council meeting on February 13, 2008 , Urbach municipality, accessed on January 31, 2010
4. ↑ Thick steel defies the floods , Gmünder Tagespost from August 30, 2007
5. ↑ Rems flood retention room 9 - Lorch / Waldhausen  ( page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. , Leonhard Weiss , accessed on January 31, 2010  
6. ↑ Flood: New dams save the Rems Valley ( Memento from January 17, 2011 in the Internet Archive ), Stuttgarter Zeitung , accessed on January 15, 2011