Eddersheim barrage

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Eddersheim barrage
Upper water of the Eddersheim barrage during the flood in January 2011
Upper water of the Eddersheim barrage during the flood in January 2011
location
Eddersheim barrage (Hesse)
Eddersheim barrage
Coordinates 50 ° 2 ′ 23 "  N , 8 ° 28 ′ 32"  E Coordinates: 50 ° 2 ′ 23 "  N , 8 ° 28 ′ 32"  E
country GermanyGermany Germany
HesseHesse Hesse
place Eddersheim ( MTK )
Mönchhof (Raunheim) ( GG )
Waters Main
Kilometers of water km 15,551
Height upstream 87.53  m
power plant
owner WSA Aschaffenburg
operator WSA Aschaffenburg
Start of planning 1931
Start of operation 1942
Listed since after 1986
technology
Average
height of fall 		3.61 m
Expansion flow 3 * 60 m³ / s
Turbines 3 Kaplan turbines
Generators 3 three-phase synchronous machine
Others

The Eddersheim barrage is the second barrage coming from the Rhine on the Main , or the penultimate of the 34 Main barrages . It is assigned to the Aschaffenburg Waterways and Shipping Office .

The barrage is located at Main km 15.551 at a height of 87.53 meters above sea level, the length of the dam is 13.136 km up to the Griesheim barrage. The average fall height is 3.61 meters.

The eponymous place Eddersheim is a district of Hattersheim in the Main-Taunus-Kreis and lies north / right of the Main. To the south or to the left of the Main is the Mönchhof industrial park, which belongs to Raunheim in the Groß-Gerau district in Hesse .

history

The expansion of the Main with needle weirs began as early as 1883 in order to ensure the connection to shipping on the Rhine. In the 1930s, the Main was expanded into its present form. The Eddersheim barrage was inaugurated in 1934. For the construction, 1.5 million cubic meters of earth were moved, 78,000 cubic meters of concrete and 10,000 tons of steel were used.

The entire facility in the functional Bauhaus architecture of the 1920s is a listed building, see also the list of cultural monuments in Hattersheim am Main .

technology

The Eddersheim barrage consists of a lock, power plant, weir and sport boat lock (from left to right, looking in the direction of flow).

Lock and inland shipping

The Eddersheim lock has been operated remotely from the Kostheim control center since January 2013 and has two lock chambers for inland navigation with outer ports on the “Mönchhof side” of the Main. The north lock can be divided into two chambers.

  • Length: 345.46 and 344.26 m
  • Widths 12.05 and 15.05 m

There is a self-service lock for pleasure craft on the Eddersheim side.

Hydroelectric power plant

The Eddersheim hydropower plant was planned as early as 1931. It should have the same construction as the Griesheim power plant up the Main , which was operational as early as 1932. The city of Frankfurt am Main made funds available to the German Reich as the builder for the expansion of the power plants and in return was to receive the electricity generated for 35 years. The completion of the Eddersheim power station was delayed for financial reasons and due to the shortage economy caused by the war. Due to the lack of steel, the planned construction was changed in favor of a concrete frame construction. The run-of-river power plant was only built in 1940/41 and went into operation in 1942.

Three three-phase synchronous generators operate in the power plant, which are driven by Kaplan turbines , each with four blades. The turbines rotate steadily at 75 revolutions per minute. The diameter of each turbine is 4.10 meters. Each generator generates an induction voltage of 5,250 volts and a maximum possible active power of 1.8 megawatts. The overall efficiency is then around 90 percent. The average annual output of electrical work is between 25 and 30 million kilowatt hours, depending on the discharge of the Main, which corresponds to a supply of 7,000 to 8,000 households, at 3,500 kWh per household and per year. Along with the Griesheim hydropower plant, it is the only power plant operated directly by the Aschaffenburg Waterways and Shipping Office . The electricity is marketed through the Mainova company.

Weir system

The weir system has consisted of three movable roller weirs since 1934 . Each is 40 meters long and 4.30 meters in diameter. In the event of extreme floods, the rollers can be pulled completely out of the Main.

Fish ladder

On the northern bank there is a fish ladder that is not up to date .

Maintenance walkway

A footbridge bridges the Main and connects the roller weirs and the lock building. The non-barrier-free footbridge is open to public pedestrian traffic.

tourism

The Hessian long-distance cycle route R3 leads past the barrage, and it is also the starting point for the route of industrial culture Rhein-Main Hattersheim am Main . The FC Eddersheim maintains its sports field at the barrage.

Landscape protection area

The 146 hectare lock island in Eddersheim was designated as a European bird sanctuary DE5916402 Untermainschleusen in 2003 together with the lock system in Frankfurt-Griesheim am Untermain . In addition to the island and the surrounding bodies of water, the adjacent meadow landscape is also protected, and at the same time is an experience space for quiet, landscape-related relaxation. On the island there are breeding grounds for the cormorant and gray heron and rook colonies , which are of national importance. The areas are also valuable for the black kite and kingfisher, as well as migratory birds such as the goosander and the great crested grebe .

Individual evidence

  1. ↑ State Office for Monument Preservation Hesse (ed.): Eddersheimer barrage In: DenkXweb, online edition of cultural monuments in Hesse
  2. ↑ DE5916402 Untermainschleusen.  (EU bird sanctuary) Profiles of the Natura 2000 areas. Published by the Federal Agency for Nature Conservation . Retrieved April 25, 2020.
  3. ↑ Sign “Habitat for Birds” in the RheinMain Regional Park

Web links

Commons : Eddersheim barrage  - collection of images, videos and audio files
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