Emswehr Haneken ferry
| Emswehr Haneken ferry | ||
|---|---|---|
 The weir seen from the north side of the headwater |
||
| location | ||
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| Coordinates | 52 ° 28 '11 " N , 7 ° 18' 15" E | |
| Country: | Germany / Lower Saxony | |
| Place: | North side: Lingen (Ems) South side: Elbergen |
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| Waters: | Ems | |
| Water kilometers : | km 84.635 | |
| Data | ||
| Operator: | Meppen Waterways and Shipping Office | |
| Construction time: | 1823–1825 1876–1877 (conversion) 1896 (conversion) 1946 (repair) 1955–1956 (conversion) |
|
| lock | ||
| Average height of fall : |
4 m | |
| Others | ||
| Associated weir: | 4 fields: 1 attack weir, 3 flap weirs |
|
| Associated power plant: | planned | |
.JPG)
The Emswehr Hanekenfähr , alternatively sometimes Emswehr Lingen , colloquially locally also called The Waterfall , is a weir system on the Ems near Hanekenfähr , about 8 km south of Lingen . The north bank of the weir, which is more than 100 m wide, is in the Lingen area, the south bank is in Elbergen (municipality of Emsbüren ).
The main purpose of the weir is to regulate the water level in the Dortmund-Ems Canal and the Ems-Vechte Canal , both of which branch off from the Ems above the barrage . The weir also ensures the supply of cooling water for the nearby Lingen power plants, the natural gas power plant and the nuclear power plant . There have been plans for a long time to build a run-of-river power plant at the barrage.
The weir systems are under the responsibility of the Meppen Waterways and Shipping Authority .
history
Planning, construction and operation
The first weir at the Hanekenfähr location was built between 1823 and 1825, in preparation for the construction of the Ems-Hase Canal , as a needle weir made of simple oak beams. The weir served to dam the Ems up to the level of Listrup , so that the Emspünten , barges with a draft of about 1 meter, which were customary at the time , could navigate the river and transfer to the new canal. This canal, which later largely merged with the Dortmund-Ems Canal, also branched off from the Ems above today's weir. Not far from the barrage, a small section of the canal with an old lock chamber has been preserved.
For the construction of the Ems-Vecht Canal the wooden weir was a more stable, fixed in the years 1876/77 overflow weir replaced in stone. At this early point in time, at the urging of the fishery, the weir received two fish passes (a salmon ladder and an eel ladder ) to enable salmon , eels and other migratory fish to climb over the weir.
In the course of the construction of the Dortmund-Ems Canal, the weir was modified and reinforced again in 1896.
Further repairs and alterations followed after the Second World War and from the mid-1950s, with the weir being expanded to include a field with a variable fish belly damper and the fish ladder renewed.
Later another piece of the weir on the south side was converted into a flap weir.
Planned hydropower plant
Since the weir was built, there have been several plans to use the barrage to build a run-of-river power station . To date (as of 2013) [obsolete] none of the plans have been implemented.
As early as 1920 there were first considerations to use the water power of the weir to promote the electrification of the Emsland.
In the mid-1990s, a private investor from Bavaria drew up new, specific plans and submitted the corresponding applications for approval. As a reaction, the VEW - operators of the neighboring large power plants - and the Lingener Stadtwerke developed alternative concepts, which were given priority for further planning after some local political disputes.
In 2002, RWE (as the successor to VEW) announced that it was leaving the project. Stadtwerke Lingen took over all of RWE's shares in Wasserkraftwerk Hanekenfähr GmbH & Co. KG . However, due to the prioritization of other projects, the construction of the Hanekenfähr hydropower plant was initially postponed by the municipal utilities. After a plan with a Kaplan turbine was rejected by the nature conservation authority of the Emsland district for reasons of fish protection in 2007 , the municipal utilities changed their concept to more gentle hydropower screws . From 2010 the planning was intensified again with the new concept. In the same year the Stadtwerke Lingen applied for the planning approval for the construction and operation of the power plant. In addition to Stadtwerke Lingen, Stadtwerke Schüttorf , Energieversorgung Emsbüren and Stadtwerke Osnabrück also want to participate in the project.
According to the latest planning, the hydropower plant would be built on the south side of the weir (Elbergen area) and consist of three or four hydropower screws. The system would have a maximum electrical output of around 1 megawatt. The construction costs are estimated at 5 to 6 million euros. The already existing fish passes would probably be supplemented or replaced by a new ascent aid on the south side.
There are concerns about the construction project, especially on the part of nature conservation and fishing. The former Lower Saxony Environment Minister Stefan Birkner (FDP) is also skeptical of the project. His predecessor in office, Hans-Heinrich Sander (also FDP), initially supported the project, but later withdrew his support.
Layout and function
The weir consists of four fields and two fish passes:
| Field (from north to south) |
- | I. | II | III | IV | - |
|---|---|---|---|---|---|---|
| Type | Fish pass (salmon stairs) |
Flap weir (type?) |
Raid Weir | Flap weir (fish belly flap) |
Flap weir (fish belly flap) |
Fish pass ( eel ladder ) |
| Width (approx.) | 12 m | 62 m | 6 m | 25 m | ||
| Height of fall (approx.) | 4 m | 3 m | 2 m | 2 m | 4 m | 4 m |
| Underwater | Base ramp | Stilling basin | ||||
| Construction year | 1877 (new 1955) |
1877 (new 1896) |
1877 | ? (after 1955) | 1955 | ? |
Web links
- Fabi Mein (H) er (z) s: (The Ems) At the waterfall in Hanekenfähr. Panoramic photo. fotocommunity.de, October 25, 2012, accessed on November 28, 2013 .
- Historical photos in the archive of the Federal Institute for Hydraulic Engineering
Individual evidence
- ↑ a b c weir systems. Wasser- und Schifffahrtsamt Meppen, accessed on December 13, 2013 .
- ↑ a b Info board at the canal lock keeper's house, content online
- ^ Wilhelm Lohmann: The Harener Emspünten . In: Kreis Meppen (ed.): Heimatkalender 1926 . S. 51–52 ( full text online ).
- ↑ Thomas Widder: Journey to the Sea: 6th tour: Hanekenfähr and Lingen. Tom's Klüngelladen, accessed December 13, 2013 .
- ↑ Königliche Prussische Landes-Oekonomie-Kollegium, Prussian Ministry for Food and Agriculture (Ed.): Landwirtschaftliche Jahrbücher . tape 7 . Wiegandt & Hempel, 1878, p. 146 .
- ↑ Meyer: About the fish pass at Hannekenfähr . In: Circulare . German Fisheries Association, 1879, p. 137-139 .
- ^ Elektrotechnischer Verein, Verband Deutscher Elektrotechniker, Energietechnische Gesellschaft im VDE (Hrsg.): Electrotechnical magazine . tape 42-2 . VDE publishing house, Berlin 1921.
- ↑ Will the Ems soon be delivering green electricity? In: New Osnabrück Newspaper . October 9, 2007 ( full text in the NOZ's online archive ).
- ↑ a b How many years does a good idea actually take until ... In: Neue Osnabrücker Zeitung . August 19, 2005 ( full text in the NOZ's online archive ).
- ↑ a b c hydropower plant is to generate energy from 2004 . In: New Osnabrück Newspaper . December 10, 2002 ( full text in the NOZ's online archive ).
- ↑ The “Stör-Fall” at Hanekenfähr . In: New Osnabrück Newspaper . February 23, 2007 ( full text in the NOZ's online archive ).
- ↑ a b c d hydropower plant: electricity for 1,600 households . In: New Osnabrück Newspaper . November 28, 2010 ( full text in the NOZ's online archive ).
- ↑ a b c Environment Minister ready to talk: New opportunity for hydropower plant near Lingen? In: New Osnabrück Newspaper . October 26, 2013 ( full text in the NOZ's online archive ).
- ↑ a b Electricity for 1,500 households: plans for a hydropower plant in Elbergen are entering a new round . In: New Osnabrück Newspaper . November 5, 2010 ( full text in the NOZ's online archive ).
- ↑ a b c d Lower Saxony State Office for Water Management, Coastal Protection and Nature Conservation: Determination according to § 3 a UVPG (construction and operation of a hydropower plant on the Ems at km. 84.650 at the Hanekenfähr weir and construction of a fish passage) . In: Lower Saxony Ministerial Gazette . No. 41/2010 , p. 1036 ( download as PDF ).
- ↑ Renewable energies. Stadtwerke Schüttorf, accessed on December 13, 2013 .
- ^ Flick Ingenieurgemeinschaft GmbH, Stadtwerke Lingen: Construction and operation of a hydropower plant at the Hanekenfähr weir system. Ems-km 84.650 . Presentation documents. Lingen November 5, 2010 ( online as PDF ).
- ↑ Environment Minister Dr. Stefan Birkner rejects hydropower plants on the Ems. Stadtblatt Lingen, November 16, 2012, accessed on December 9, 2013 .
- ↑ Lower Saxony Environment Minister Sander says "Yes" to hydropower . In: New Osnabrück Newspaper . September 9, 2011 ( full text in the NOZ's online archive ).