Eschbach dam
| Eschbach dam | |||||||
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| Coordinates | 51 ° 9 '38 " N , 7 ° 14' 2" E | ||||||
| Data on the structure | |||||||
| Construction time: | 1889-1891 / 1991-1994 | ||||||
| Height above valley floor: | approx. 20 m | ||||||
| Height above foundation level : | approx. 25 m | ||||||
| Building volume: | 17,000 m³ | ||||||
| Crown length: | 160 m | ||||||
| Crown width: | 5.01 m | ||||||
| Data on the reservoir | |||||||
| Altitude (at congestion destination ) | 243.32 m, 243.80 m (for HQ 1000 ) | ||||||
| Water surface | 0.14 km² (14 hectares) | ||||||
| Storage space | 1.052 million m³ | ||||||
| Total storage space : | 1.120 million m³ | ||||||
| Catchment area | 5.25 km² | ||||||
| Design flood : | 11 m³ / s | ||||||
The Eschbachtalsperre is the first drinking water - dam of Germany and is located in Remscheid in North Rhine-Westphalia . The Eschbach is dammed . This pioneering achievement of hydraulic engineering was an important milestone in the economic development of the city of Remscheid when it opened in 1891.
Naming convention
In the early days of dam construction at the end of the 19th century to the beginning of the 20th century - and even today in other areas - it was customary in Germany to name dams not after their dammed water, but after the city for whose supply they were built were. As a result, the Eschbachtalsperre is also known as the Remscheider Talsperre in contemporary literature . It was later renamed according to today's naming convention.
history
The Eschbachtalsperre was planned by Otto Intze and built as a gravity dam according to the Intze principle from May 1889 to 1891 at the instigation of the Remscheid industrialist Robert Böker following a resolution by the city council in December 1888 . The executing construction company was Wolf and Vering from Düsseldorf, the total costs amounted to 536,000 marks.
The structure, which is important in terms of water management, was the forerunner of a large number of other so-called Intze dams. In addition, other types of dams have also been further developed.
The dam was renovated between 1991 and 1994. It was strengthened, a 35 cm thick wall made of concrete and a control passage on the water side, a new drainage system, a new extraction system and new measuring devices.
Staircase in the control corridor to the hotel
Inspection window in the inspection corridor
Water drainage in the inspection aisle
Hydropower plant
In November 2012, the EWR built a hydropower plant for regenerative energy generation in the dam after the project was approved by the Düsseldorf district government in October 2011. Due to the specified head of about 18 meters and a maximum usable flow rate of 209 l / s, the turbine with an output of 29 kW produces approx. 100,000 kWh of electricity per year. The electricity generated with this system covers the dam's own energy requirements and the electricity generated beyond this is fed into the public grid. The amount of electricity generated corresponds roughly to the annual requirement of 28 average households or an annual CO 2 saving of 65 tons.
Excursion destination
The dam was a popular destination from the start. Prince Friedrich Leopold of Prussia visited it on July 15, 1897. Two years later, Kaiser Wilhelm II found words of praise for this building on site.
In 1977 the circular route around the reservoir was expanded into a nature trail to make the dam better accessible to visitors. Not far from the circular route, a stone cross reminds of a bloody act in ancient times. A branch of the Way of St. James leads along the dam from Wuppertal- Beyenburg to Santiago de Compostela in Spain .
Dam network
The dam belongs to the Wupperverband's water network . To ensure the city's drinking water supply, there has been a direct 15 km pipeline to the higher Neyetalsperre near Hückeswagen since 1909 . The inflow point is a bit away from the dam. Another drinking water reservoir for Remscheid is the Great Dhünntalsperre as part of this network .
Technical details
- Exceptional HW retention area: 0.068 million m³
- Operating space: 1.041 million m³
- Reserve space: 0.011 million m³
- Dead space: 0
- Lowering target : 228.00 m above sea level NN
- Freeboard: 1.00 m
- Degree of expansion : 0.25
- Building volume / total space: 1:45
Note: The ratio of the building volume to the total storage space should be 1:45. With the information available for the wall volume of 17,000 m³ and the total storage space of 1,120,000 m³, however, one comes to a smaller ratio, namely 1:66. This is possible if one assumes that the wall volume was increased from 17,000 to 25,000 m³ during the renovation in 1991–94.
See also
Web links
Individual evidence
- ↑ ewr-gmbh.de: EEA commitment in the renewable energies business area ( memento of the original from April 11, 2016 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.
