Picture a landscape altered by time and industry. Here before us flows the Knauthainer Elstermühlgraben. It is a waterway with a story etched into its very course.
The Knauthainer Elstermühlgraben isn’t just a natural stream. It is a 6.39 kilometer long artificial side arm of the White Elster. Imagine its origins. It was once part of a much grander 29-kilometer millstream.
That original millstream faced disruption. The Zwenkau open-cast mine interrupted its flow. The Knauthainer Elstermühlgraben is the lower section of what remained. The Profen Elstermühlgraben forms the upper part.
Historically, this waterway played a vital role. Monks from Pegau Monastery created it in the 12th century. Wiprecht von Groitzsch initiated its construction. Its primary purpose was to power mills. These mills stretched from Elstertrebnitz to Großzschocher. Some even operated into the 20th century.
Consider the changes brought by brown coal mining. Between 1972 and 1977, the White Elster was relocated. It was forced into a concrete bed between Zwenkau and Leipzig. This project integrated the millstream near Kleindalzig. At Hartmannsdorf, it was diverted.
The original riverbed suffered greatly. A five-kilometer section dried up. From 1984 onwards, excavators ravaged it. South of former Eythra, a section persisted. It lies between the concrete Elster and Zwenkauer See. Sadly, the lowered groundwater means it no longer carries water.
The Knauthainer Elstermühlgraben originates near Hartmannsdorf. Here, it branches off the White Elster. Initially, it flows underground. It merges with the flood relief from the Krebsgraben. Above ground in Hartmannsdorf, it receives the Klucksgraben.
Near Knauthain, the Knauthainer Elstermühlgraben splits. It divides into two arms. These arms rejoin near Knautkleeberg after only a few hundred meters. From Knautkleeberg, it flows almost straight. It skirts the western edge of the Elsteraue. Before its endpoint, it receives the Zickmantelsche millstream. Finally, it empties into the White Elster near Brückenstraße in Großzschocher.
But there is hope for the Knauthainer Elstermühlgraben. Leipzig plans to renaturalize it. This aligns with the European Water Framework Directive. The city intends to widen the existing corridor. This is between Knauthain and Windorf by about 25 meters. Part of the plan involves creating a new meandering river course.
The vision involves complete removal of channel sealing. The goal is to restore ecological continuity. Smaller side channels will also be included. These include parts of the Krummer Graben, Windorfer Augraben, and Wiesengraben. These form smaller oxbow lakes. They lie between the White Elster and the millstream. A land consolidation procedure started on November 21, 2016. This aims to facilitate these changes.
In essence, the Knauthainer Elstermühlgraben is more than just a stream. It is a testament to human intervention. It highlights the constant negotiation between industry and nature. Its ongoing renaturation offers a glimpse of hope. It shows a path towards ecological recovery.