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List of dams and reservoirs in Switzerland

From Wikipedia, the free encyclopedia

List of lakes with a dam in Switzerland with a volume of more than 10 million cubic metres (m3):

Dammed lakes with their location, volume, area and depth, as well as information on the relevant dam(s)
Name of lake Canton Volume in million m3 Surface elevation (m) Surface area in km2 Maximal depth (m) Name of dam Type of dam Year of construction Height of dam (m)
Lac des Dix Valais 401 2365 3.65 227 Grande Dixence Gravity 1961 285
Dixence Gravity 1935 87
Lac d'Emosson Valais 227 1930 3.27 161 Emosson Arch 1974 180
Barberine Gravity 1925 79
Lac de la Gruyère Fribourg 220 677 9.60 75 Rossens Arch 1947 83
Lac de Mauvoisin Valais 211 1961 2.08 180 Mauvoisin Arch 1957 250
Lago di Lei Italy, Grisons 197 1931 4.12 133 Valle di Lei Dam Arch 1961 141
Lago di Livigno Italy, Grisons 165 1805 4.71 119 Punt dal Gall Arch 1968 130
Wägitalersee Schwyz 150 900 4.18 65 Schräh Gravity 1924 111
Lago di Luzzone Ticino 108 1592 1.27 181 Luzzone Arch 1963 225
Lago di Vogorno Ticino 105 470 1.68 204 Verzasca Arch 1965 220
Grimselsee Bern 103 1908 2.63 100 Spitallamm Arch 1932 114
Mattmarksee Valais 101 2197 1.76 93 Mattmark Embankment 1967 120
Zervreilasee Grisons 101 1862 1.61 140 Zervreila Arch 1957 151
Sihlsee Schwyz 97 889 10.72 23 Hühnermatt Embankment 1937 17
In den Schlagen Gravity 1936 33
Limmerensee Glarus 93 1857 1.36 122 Limmern Arch 1963 146
Lac de Moiry Valais 78 2249 1.40 120 Moiry Arch 1958 148
Göscheneralpsee Uri 76 1792 1.32 106 Göscheneralp Embankment 1960 155
Albignasee Grisons 71 2163 1.13 108 Albigna Gravity 1959 115
Lai da Sontga Maria Grisons 67 1908 1.77 86 Santa Maria Arch 1968 117
Schiffenensee Fribourg 66 532 4.25 38 Schiffenen Arch 1963 47
Lago del Sambuco Ticino 63 1461 1.11 124 Sambuco Arch 1956 130
Oberaarsee Bern 61 2303 1.47 90 Oberaar Gravity 1953 100
Lai da Marmorera Grisons 60 1680 1.41 65 Marmorera
(Castiletto) 		Embankment 1954 91
Klöntalersee Glarus 56 847 3.29 47 Rhodannenberg Embankment 1910 30
Lago Ritom Ticino 54 1850 1.49 69 Piora Gravity 1920 27
Lac de l'Hongrin Vaud 53 1255 1.60 105 Hongrin Nord Arch 1969 125
Hongrin Sud Arch 1969 90
Lac de Tseuzier Valais 51 1777 0.85 140 Proz-Riond Embankment 1957 20
Zeuzier Arch 1957 156
Lai da Nalps Grisons 45 1908 0.91 122 Nalps Arch 1962 127
Lai da Curnera Grisons 41 1956 0.81 136 Curnera Arch 1966 153
Lac de Salanfe Valais 40 1925 1.62 48 Salanfe Gravity 1952 52
Gigerwaldsee St.-Gallen 36 1335 0.71 135 Gigerwald Arch 1976 147
Lago del Narèt Ticino 32 2310 0.73 104 Naret I Arch 1970 80
Naret II Gravity 1970 45
Lago dei Cavagnöö Ticino 29 2310 0.46 100 Cavagnoli Arch 1968 111
Räterichsbodensee Bern 27 1767 0.67 77 Räterichsboden Gravity 1950 94
Lago di Lucendro Ticino 25 2134 0.54 96 Lucendro Buttress 1947 73
Wohlensee Bern 25 480 3.65 20 Mühleberg Gravity 1920 29
Lac de Moron Neuchâtel, France 21 716 0.69 59 Châtelot Arch 1953 74
Lac des Toules Valais 20 1810 0.61 75 Les Toules Arch 1963 86
Lac de Cleuson Valais 20 2186 0.51 76 Cleuson Gravity 1950 87
Griessee Valais 19 2386 0.50 66 Gries Gravity 1965 60
Lago Bianco Grisons 19 2234 1.50 53 Lago Biango Nord Gravity 1912 15
Lago Biango Süd Gravity 1912 26
Sufnersee Grisons 18 1401 0.90 51 Sufers Arch 1962 58
Gelmersee Bern 14 1850 0.64 48 Gelmer Gravity 1929 35
Lac du Vieux Emosson Valais 14 2205 0.55 42 Vieux-Emosson Arch 1955 45
Lac de Montsalvens Fribourg 13 801 0.74 50 Montsalvens Arch 1920 55
Arnensee Bern 11 1543 0.45 50 Arnensee Embankment 1942 17

Values in bold are the extreme values (e.g., highest and lowest) of the particular column.

Problems and challenges

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Hydroelectric power plants in the Alps are sometimes located on unstable mountain slopes. Melting glaciers (with landslides like the one in Blatten in May 2025), heavy rainfall, and flooding also pose challenges.[1] Water resource management has gained importance.[2]

See also

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Wikimedia Commons has media related to Dams in Switzerland.

References

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  1. ^ srf.ch: []https://www.srf.ch/audio/rendez-vous/alpine-wasserkraft-stauseen-werden-fuer-die-sicherheit-wichtiger Stauseen werden für die Sicherheit wichtiger] (Reservoirs are becoming more important for safety)
  2. ^ Aletsch: Der Gletscher zieht sich zurück, das Wasser wird knapp (18 July 2025)
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