Talsperre Lehnmühle, Cultural heritage reservoir in Dippoldiswalde and Hartmannsdorf-Reichenau, Germany.
The Talsperre Lehnmühle is a dam in the Ore Mountains, situated between Dippoldiswalde and Hartmannsdorf-Reichenau, where it holds back a large reservoir surrounded by forests. The water stored here serves both as drinking water supply and as protection against flooding for communities downstream.
The dam was completed in 1927 as part of a broader effort to secure water supplies and reduce flood risk in eastern Saxony. It was one of several large water projects built in the region during that period.
The name comes from an old mill that once stood at this spot, driven by the flowing water of the stream. Today, visitors walk the paths around the water and pass through the same forested valley where the mill once operated.
The reservoir is easy to reach by car, with parking available close to the dam structure. Trails run through the forest around the water and are most comfortable to walk in dry weather.
The dam body is made from roller-compacted concrete, a method in which layers of concrete are pressed together without steel reinforcement. This technique was rare in Germany at the time and makes the structure one of the early examples of this approach in the country.
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