Lake Viamala

Test Lüschersee

Abb.1 Reaktivierung Lüschersee Stand Ende Juni 2022
Abb.4 Messstation zur Überwachung der Hangrutschungen durch die Reaktivierung des Lüschersees

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Abb.6 Biologische Ersatzmassnahmen

The idea of the new Lüschersee

Since spring 2022, the drained Lüschersee has been dammed up again in a test phase (Fig.1).


Reason for the former emptying

The natural mountain lake was drained in 1910 by an artificial tunnel, because at that time a connection between the Lüschersee and the landslides on the Heinzenberg was suspected (Fig. 2).


Extensive geological and hydrological investigations have shown that the Lüschersee has only a minor influence on the landslides on the Heinzenberg (Fig.3).


Now the reactivation of the Lüschersee is to promote winter and summer tourism. The water of the lake is used in the first winter months for technical snowmaking.

Changes in biodiversity through the lake

On the territory of the former lake, after emptying, new small waters and moor areas have formed on which 9 different love species have been detected. In order to preserve this biodiversity, the loss of small areas worthy of protection is compensated by local replacement measures in Fig. 4 & 5.


Responsible for this content Viamala Tourismus.
This content has been translated automatically.

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