__NOTOC__ The Sihlsee (in English sometimes called ''Lake Sihl'') is an

artificial lake 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 control ...

in the

Swiss Swiss may refer to: * the adjectival form of Switzerland * Swiss people Places * Swiss, Missouri *Swiss, North Carolina * Swiss, West Virginia * Swiss, Wisconsin Other uses * Swiss-system tournament, in various games and sports *Swiss Internati ...

canton of Schwyz The canton of Schwyz (german: Kanton Schwyz rm, Chantun Sviz; french: Canton de Schwytz; it, Canton Svitto) is a canton in central Switzerland between the Alps in the south, Lake Lucerne to the west and Lake Zürich in the north, centred o ...

, near the town of Einsiedeln. The lake was created by damming the river Sihl and flooding a section of the upper Sihl Valley. The lake feeds the ''Etzelwerk'' power station, which is located to the north-east in Altendorf on the upper section of

Lake Zürich __NOTOC__ Lake Zurich (Swiss German/ Alemannic: ''Zürisee''; German: ''Zürichsee''; rm, Lai da Turitg) is a lake in Switzerland, extending southeast of the city of Zürich. Depending on the context, Lake Zurich or ''Zürichsee'' can be used ...

(the ''Obersee'') and which supplies electricity to the

Swiss Federal Railways Swiss Federal Railways (german: link=no, Schweizerische Bundesbahnen, ''SBB''; french: link=no, Chemins de fer fédéraux suisses, ''CFF''; it, Ferrovie federali svizzere, ''FFS'') is the national railway company of Switzerland. It is usuall ...

(SBB). Its concrete dam is high and m long. The lake is the largest artificial lake of Switzerland in terms of surface with a maximum length of and maximum width of . The maximum depth is , and the lake has an approximate volume of . The power plant project started in 1932. A concrete dam and two viaducts over the lake were built before 1937 when the valley was flooded. As a result 107 farms disappeared completely and 1762 persons had to leave their homes. A failure of the dam could lead, according to studies, to an high flood wave through the lower Sihl Valley reaching the

Altstadt ''Altstadt'' is the German language word for "old town", and generally refers to the historical town or city centre within the old town or city wall, in contrast to younger suburbs outside. '' Neustadt'' (new town), the logical opposite of ''Alt ...

of the city of

Zürich , neighboring_municipalities = Adliswil, Dübendorf, Fällanden, Kilchberg, Maur, Oberengstringen, Opfikon, Regensdorf, Rümlang, Schlieren, Stallikon, Uitikon, Urdorf, Wallisellen, Zollikon , twintowns = Kunming, San Francisco Zürich () i ...

, the biggest city in Switzerland, within 2 hours. This threat has led the City of Zürich to develop, publish and test evacuation plans for the affected areas of the city, and especially the area around Zürich Hauptbahnhof railway station.

Gallery

File:Sihlsee Fluebrig.jpg, Sihlsee with Fluebrig behind File:Sihlsee IMG 2807.JPG, The northern shore

References

External links

*
Information about the Sihlsee
{{Authority control Lakes of the canton of Schwyz Reservoirs in Switzerland LSihlsee Sihl