Sudheim flood retention basin
| Sudheim flood retention basin | |||||||||
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| Coordinates | 51 ° 36 '2 " N , 8 ° 54' 53" E | ||||||||
| Data on the structure | |||||||||
| Construction time: | 1978-1980 | ||||||||
| Height above valley floor: | 12.5 m | ||||||||
| Height above foundation level : | 13.3 m | ||||||||
| Height of the structure crown: | 311.57 m above sea level NHN | ||||||||
| Crown length: | approx. 400 m | ||||||||
| Crown width: | 5 m | ||||||||
| Slope slope on the air side : | 1: 2 - 1: 2.5 | ||||||||
| Slope slope on the water side : | 1: 3 | ||||||||
| Operator: | Upper Lippe Water Association (WOL) | ||||||||
| Data on the reservoir | |||||||||
| Altitude (at congestion destination ) | 309 m above sea level NHN | ||||||||
| Water surface | 72.07 ha | ||||||||
| Storage space | 2.511 million m³ | ||||||||
| Total storage space : | 3.408 million m³ | ||||||||
| Catchment area | 32.83 km² | ||||||||
| Design flood : | 74.1 m³ / s | ||||||||
The Sudheim flood retention basin is a flood retention basin (HRB) of the Upper Lippe Water Association (WOL) on the Sauer near Lichtenau ( Paderborn district , North Rhine-Westphalia ) and belongs to the catchment area of the Lippe and Rhine .
As a “green basin”, in which there is normally no water, it serves to protect Lichtenau and the villages below it from flooding .
Geographical location
The flood retention basin is located in the Teutoburg Forest / Eggegebirge Nature Park on the Paderborn plateau on the Sauer. It is located above the Lichtenau core town in the Sauertal nature reserve (NSG no. 319051), which has existed since 2000 and is around 927 hectares in size. Its dam is located around 1.4 km southeast of the south-eastern exit of the village ( Sudheimer Weg ) with the Sudheim estate there and about the same distance to the west-northwest of the confluence (approx. 305 m above sea level ) of the Kleinenberg creek into the Sauer. The federal road 68 (in the Lichtenau– Kleinenberg section ) in the east and the district road 25 (in the Lichtenau– Holtheim section ) in the west pass by a little further .
history
Because the Sauer often leads to strong floods , such as between July 15 and 17, 1965 during the Heinrichsflut , and flooded large parts of the neighboring villages, a flood retention basin was built on its upper course above Lichtenau or from Gut Sudheim , the excess sour water is recording: The dam began in 1978 and ended in 1980. The commissioning took place after completion of sample storage 1,981th
In addition to the HRB Sudheim, the HRB Ebbinghausen was built on the Sauerunterlauf and the HRB Husen-Dalheim at its confluence with the Altenau .
Dam with outlet structure
The dam , whose crown height is 311.57 m , is about 400 m long and 12.5 m (above the valley floor) or 13.30 m (above the foundation floor ) and 5 m wide at its crown . It consists of a bed of rock with a clay core and its slope is 1: 2 to 1: 2.5 on the air side and 1: 3 on the water side .
An approximately 58 m long outlet structure made of reinforced concrete with a diameter of 1.4 m and a flood relief system was integrated into the dam , which can let through up to 31.0 m³ / s; the output at the bottom outlet is 8 m³ / s. At the foot of the dam on the air side, an operating building with monitoring and control devices was erected near the outlet structure.
Flood retention basin
The dam has 3,408,000 m³ total and flood control room m³, in a normal memory space of 2,511,000. The design flood is 74.1 m³ / s. The storage space is designed for a rainfall or catchment area of around 32.83 km² . The storage target is exactly 309 m above sea level and the highest storage target (a flood that occurs on average once every 1,000 years) is 310.15 m . The flooded area is 72.07 ha for the storage target and 82.75 ha for the highest storage target.
Work on rivers and infrastructure
During the construction of the dam, the section of the river Sauer located in the dam area was designed as an underground canal leading through the dam. In addition, the access road to the parking lot at the company building and a few walking, hiking and control paths, one of which also leads over the dam, were created.
See also
Individual evidence
- ↑ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag HRB Sudheim at Wasserverband Obere Lippe (WOL)
- ↑ Map services of the Federal Agency for Nature Conservation ( information )
- ↑ Topographical Information Management, Cologne District Government, Department GEObasis NRW ( Notes )
- ↑ a b List of dams in NRW , on lanuv.nrw.de (PDF; 124 kB)
Web links
- Dams in North Rhine-Westphalia; State Environment Agency NRW ( Memento from February 26, 2009 in the Internet Archive )
- Dams in the Detmold administrative district