Iffezheim Lock

Lock entrance from the downriver side, looking roughly south-east.
Looking south and upriver over the eastern basin.

The Iffezheim Lock (German: Schleuse Iffezheim) is a river lock on the Rhine near Iffezheim in Baden-Württemberg, Germany. The two passages of the lock serve to allow ships and barges to bypass the hydropower station on the French side of the river.

It is one of the heaviest-used locks in Germany, with a daily average of 107 commercial vessels passing through in 2003 and 30 million shipping tonnes per year. The chambers of the double lock have usable areas of 24 x 270 m. The lock is open for passage 24/7/365 and shuttles ships up or down with a water exchange rate of 165 m³/s per chamber, achieving a rise or fall of 1.5 m per minute. The lock retains at least 3.5 m water depth during normal low-water conditions.[1][2]


  1. Annual Report 2003 (from the Leibniz-institute for Waterbody Ecology and Freshwater Fisheries (IGB) website, 2003, Page 85. Accessed 2008-03-02.)
  2. Schleuse Iffezheim (from the Water- and Shipping Agency Freiburg website, in German. Accessed 2008-03-02.)

Coordinates: 48°49′56″N 8°06′47″E / 48.832125°N 8.11306°E / 48.832125; 8.11306

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