Ruhr lock Mülheim

Lock with the water station in the background

Lock seen from the water station

Broicher Schlagd

The Ruhr lock Mülheim is the first of a series of Ruhr sluices, to 1780, to promote the Ruhr shipping were constructed. Until the 1920s, the lock was the lowest in the Ruhr.

history

Between 1843 and 1845 Prussia had the lock rebuilt at its current location . This is still in operation today. It replaced an older lock with too high jambs and the generally problematic location in the often silted up underwater of the Broicher Schlagd . This first lock was built in 1779 and 1780 where the RWW's Kahlenberg hydropower plant is today. In 1927 an adjustment of the new lock became necessary after the Kahlenberg weir was built about a thousand meters upstream at the upper end of the lock island, and thus the headwater rose by 1.5 meters. This makes the Mülheimer Schleuse the only one of its kind on the Ruhr, with which two weirs can be overcome at the same time (Kahlenberger weir and Broicher weir).

After the weir was placed under monument protection in 1987 , it was renovated in 1993/1994.

location

The Mülheim Ruhr lock is located on the lock island together with the water station , the Kahlenberg hydropower plant and the Ruhrnatur building .

Technical specifications

Since the difference in height between two weirs has to be leveled out, the shipping canal in the upstream water is unusually long. The lock itself is 63.42 meters long at 5.64 meters wide and overcomes a difference between the upper and lower water of 4.95 meters. There is a fish passage each at the Kahlenberger weir, the Broicher Schlagd and in the power plant .