Heidelbach flood retention basin
| Heidelbach flood retention basin | |||||||||||
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| Coordinates | 50 ° 48 '1 " N , 9 ° 15' 59" E | ||||||||||
| Data on the structure | |||||||||||
| Lock type: | Earthfill dam | ||||||||||
| Construction time: | 1965-1968 | ||||||||||
| Height of the barrier structure : | 13 m | ||||||||||
| Crown length: | 364 m | ||||||||||
| Operator: | Schwalm water association | ||||||||||
| Data on the reservoir | |||||||||||
| Storage space | 5.6 million m³ | ||||||||||
| Catchment area | 162 km² | ||||||||||
The flood retention basin Heidelbach of the Schwalm water association is a flood retention basin (HRB) on the Schwalm near Alsfeld in the Vogelsbergkreis in central Hesse and belongs to the catchment area of the Fulda .
As a "green pool", usually located where no water, it serves the flood protection of the nearby villages below it and it protects the river basin of the Fulda before flood .
Geographical location
The flood retention basin is located on the southwestern edge of the Knüllgebirge in Schwalmgrund and, within the framework of its dam, a little below the confluence of the small Erlenbach in the Eder tributary Schwalm . It is located around 5.5 km north of the core town of Alsfeld and around 1 km above its village district of Heidelbach . To the west of the basin is the village district of Münch-Leusel .
history
Because the Schwalm often strong flood led, as in the highest ever measured Schwalm flood of 5 December 1960 (an outflow of 157 m³ / s in Uttershausen flooded), while large parts of the river downstream villages, was the most 6 December 1962 Water Association Schwalm founded and Several flood retention basins built on the river. This is how the HRB Heidelbach was created, which absorbs excess Schwalm water: The construction of the dam began in 1965 and ended in 1968.
The strongest flood since the dam was erected - triggered by continuous rain and snowmelt - occurred (as on HRB Treysa-Ziegenhain, which is much further downstream ) on 24/25. January 1995, the levels sank from February 2, 1995 and the dam of the basin proved itself.
Dam with outlet structure
The dam , which consists of embankments, is about 364 m long and 13 m high. A reinforced concrete outlet structure was integrated into the dam . The damming usually occurs when the discharge exceeds more than 5.8 m³ / s water. The flood relief is designed for a flood event that occurs on average once every 1000 years. It takes place via a central fish belly flap and two lateral overflow thresholds . At the northeast end of the dam, an operating building with monitoring and control devices was built.
Flood retention basin
The dam has 5.6 million m³ congestion and flood control room . The storage space is designed for a precipitation or catchment area of around 162 km² , which makes up almost 12.5% of the total catchment area of the Schwalm.
Work on rivers and infrastructure
When the dam was built, the section of the Schwalm watercourse in the dam area was designed as an open canal leading through the dam. In addition, access roads to the dam and a walking, hiking and control path leading over the dam were created. Federal road 254 runs east of the basin .
See also
Individual evidence
- ↑ a b c d e f g h facilities of the Schwalm water association ( Memento of the original dated December 11, 2013 in the Internet Archive ) Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. , including HRB Heidelbach (on wasserverband-schwalm.de)
- ↑ a b c d Wikipedia article List of dams in Germany , including HRB Heidelbach (accessed April 19, 2012)
- ↑ a b Info according to the Schwalm water association (homepage)
- ↑ a b When the water overflowed, article on the floods from January / February 1995 on hna.de (from January 10, 2011)
