Iffezheim Lock

The Iffezheim barrage is a barrage of the Upper Rhine, which reduces the increased by previous Rhine straightening flow rate of the river and at the same time serves the generation of electrical energy. It lies on the Rhine kilometer 334 between the municipalities Iffezheim in Baden and Roppenheim in Alsace and consists of a weir, a lock, a hydroelectric power plant and a fish pass. The building is crossed by the highway 500 and the secondary road D 4 The building located on the border was planned and built together with the barrage Gambsheim in German - French cooperation.

History

1840 included the Grand Duchy of Baden and France an agreement for regulation of the Rhine by Tulla. The Alsatian engineer Koechlin made ​​1902 an attempt to use the water power of the river Rhine. In 1928 the expansion of the Rhine with the Grand Canal d'Alsace and the first four power plants ( Kembs to bird green ), four additional dams in the so-called loop solution ( Marckolsheim to Strasbourg ) followed in 1959. 1969 a Franco-German agreement for the construction of Gambsheim and Iffezheim closed. Construction of the dam began in 1974 Iffezheim 1977 power plant, sluice and weir were put into operation.

A contract for the construction of fish passes in Iffezheim and Gambsheim was closed in 1997. The fish pass in Iffezheim could be put into operation in 2000, the construction began on the fifth turbine in Iffezheim Gambsheim in 2006. 2009. End of 2011, the Water Act permit for the installation of a fifth turbine in Rheinkraftwerk Gambsheim was granted. The power plant capacity will increase by s 1420 m³ /. The additional turbine has to go to 31 December in 2016.

Weir

The weir of the barrage in Iffezheim located on the French side of the Rhine, with which the entire dam is approximately a mirror image is applied to the next higher barrage Gambsheim. It consists of six weir gates, each 20 m wide. A weir consists of a hydraulically operated flap and a chain-driven printing segment. The weir, the water levels of the Rhine at water channels that are larger than the absorption capacity of the power plant, for sure. The entire system is designed for a maximum water flow of 7500 m³ / s.

Power station

Smuggle

The double lock consists of two lock chambers, each 270 meters long and 24 meters wide, the height difference between the upper and lower water is about 11 meters. They are one of the largest locks in Europe. The locks were put into operation on 14 March 1977. They are 24 hours in a three-shift operation in use and maintained by the Water and Shipping Authority Freiburg and cared for. Annually happen in freight and cargo shipping between 25,700 (2008) and 40,600 (1990 ) ships with approximately 24.4 (2009 ) to 30.9 (2000) million tons of freight the locks.

Fishway

1987 by the International Commission for the Protection of the Rhine (ICPR ) set up a program of measures, which has, among other things, the reintroduction of salmon in the Rhine to the destination. One of the projects this was the construction of fish passes in Iffezheim and Gambsheim, which was adopted with the agreement of 4 March 1997. The fish pass Iffezheim was inaugurated in 2000, Gambsheim was commissioned in 2006.

The construction of the fishway in Iffezheim was funded by the two states of France and Germany and the RKI GmbH. In connection with the fishway, the machine was put into operation 6 as a so-called Lockstromturbine. This is a Kaplan machine with 1.05 MW induction generator.

The built in the wake of the fishway in Gambsheim learned some constructive changes due to experience in Iffezheim.

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