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Gigerwaldsee is a 
reservoir
A reservoir (; from French ''réservoir'' ) is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation.
Reservoirs can be created in a number of ways, including contro ...
in the municipality of Pfäfers
Pfäfers is a municipality in the ''Wahlkreis'' (constituency) of Sarganserland in the canton of St. Gallen in Switzerland. The villages Pfäfers, St. Margrethenberg, Vadura, Valens, Vasön and Vättis belong to the municipality.
History
The '' ...
, in the Canton of St. Gallen
The canton of St. Gallen, also canton of St Gall (german: link=no, Kanton St. Gallen ; rm, Chantun Son Gagl; french: Canton de Saint-Gall; it, Canton San Gallo), is a canton of Switzerland. The capital is St. Gallen.
Located in northeastern ...
, Switzerland. The reservoir has a volume of 35.6 million m³ and a surface area of .
The arch dam
An arch dam is a concrete dam that is curved upstream in plan. The arch dam is designed so that the force of the water against it, known as hydrostatic pressure, presses against the arch, causing the arch to straighten slightly and strengthe ...
Gigerwald was completed in 1976. It has a height of 147 m.
See also
*List of lakes of Switzerland
This article contains a sortable table listing all major lakes of Switzerland. The table includes all still water bodies, natural or artificial, that have a surface area of at least , regardless of water volume, maximum depth or other metric. The ...
*List of mountain lakes of Switzerland
This is a list of high-altitude lakes in Switzerland. It includes all significant lakes, natural or artificial, with an area over 4 hectares and a height over 800 metres above sea level. This height approximately corresponds to the transiti ...
External links
* Lakes of the canton of St. Gallen Reservoirs in Switzerland Arch dams {{StGallen-lake-stub