Lech Dam Level 2 - Prem

The Lech Weir 2 - Prem is a weir on the Lech River near Füssen in Bavaria. Here, the Lech River is dammed by a nearly 3 km long dam close to Prem. The reservoir is used by Uniper Kraftwerke GmbH in a run-of-river hydroelectric power plant built between 1970 and 1972, with a capacity of 19.2 MW for energy generation; it also serves for recreational purposes.
The dam is an embankment dam with a bituminous outer layer. This had to be renovated a few years ago. For this purpose, a 1.8 mm thick plastic sheet made of polypropylene was used. 17,550 square meters in the most severely damaged zone were sealed this way.

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