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Wägitalersee with a view of Innerthal
Wägitalersee with a view of Innerthal
Location: Canton of Schwyz
Tributaries: Aberenbach , Ziggenbach , Schlierenbach u. a. Mountain streams
Drain: Wägitaler Aa
Larger places on the shore: Innerthal
Wägitalersee (Canton Schwyz)
Coordinates 712 558  /  216445 coordinates: 47 ° 5 '22 "  N , 8 ° 55' 16"  O ; CH1903:  712,558  /  216445
Data on the structure
Lock type: Gravity dam
Construction time: until 1924
Height above valley floor: 66 m
Height above foundation level : 111.6 m
Building volume: 237,000 m³
Crown length: 150 m
Crown width: 4 m
Operator: AG Kraftwerk Wägital , Siebnen
Data on the reservoir
Altitude (at congestion destination ) 900  m above sea level M.
Water surface 4.18 km²
Reservoir length 5.0 kmdep1
Total storage space : 150 million m³
Catchment area 42.7 km²
Design flood : 105 m³ / s

until 1929 the world's highest weight wall and dam (then Diablo dam )

Map Wägitalersee.png

The Wägitalersee is a reservoir in the Swiss canton of Schwyz that belongs to the two-stage Wägital power plant .


The lake is located in the upper part of the Wägital and is surrounded by the mountains Gross Aubrig , Fluebrig , Zindlenspitz , Brünnelistock and Bockmattli . The reservoir lies entirely in the municipality of Innerthal - the only village on the lake - and can be reached via a road from Siebnen . The Schrähbach Bridge, an early reinforced concrete construction from 1924 by the engineer Robert Maillart , leads over a bulge in the lake . A hiking and biking route leads around the lake.


Before the construction of the dam in 1924, there was a bathing hotel in the area of ​​the Wägitalersee, which led to a lively bathing and spa business.

The village of Innerthal had to be abandoned because of the construction of what was then the highest gravity dam, the “Schräh”. The church was blown up. The village was rebuilt at its current location.

The story about the construction of the dam inspired Beat Hüppin to write the historical novel "Talwasser" (2016).

See also


Web links

Commons : Wägitalersee  - collection of images, videos and audio files