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English: Lake Serre-Ponçon (Lac de Serre-Ponçon) is a lake in southeast France; it is one of the largest artificial lakes in western Europe. The lake gathers the waters of the Durance and the Ubaye rivers, flowing down through the Hautes-Alpes and the Alpes du Sud to the Rhône River. The waters are dammed by the Barrage de Serre-Ponçon, a 123 m high earth core dam.

As well as water control, sixteen hydroelectric plants use the water and the lake provides irrigation to 1,500 km² of land. Max. length 20 km (12 mi) Max. width 3 km (1.9 mi) Surface area 28 km2 (11 sq mi) Max. depth 90 m (300 ft) Water volume 1.272 km3 (1,031,000 acre·ft) Residence time 0.5 year

Surface elevation max. 780 m (2,560 ft)
Français : Le lac de Serre-Ponçon est un lac artificiel dans le sud des Alpes françaises à la limite des départements des Hautes-Alpes et des Alpes-de-Haute-Provence. Il a été créé par l'établissement d'un barrage sur la Durance, deux kilomètres à l'aval de son confluent avec l'Ubaye.

Type Lac artificiel Origine Barrage mise en eau en 1960 Superficie 28,2 km2 Altitude De 736 à 780 m Profondeur 90 m Volume 1,272 km3 Hydrographie

Bassin versant 3 600 km2
Nederlands: Der Lac de Serre-Ponçon ist ein Stausee in den französischen Westalpen in den Departments Hautes-Alpes und Alpes-de-Haute-Provence.

Bauzeit: 1955–1961 Höhe des Absperrbauwerks: 124 m Bauwerksvolumen: 14,1 Mio. m³ Kronenlänge: 630 m Kronenbreite: 9,35 m Kraftwerksleistung: 380 MW Daten zum Stausee Höhenlage (bei Stauziel) 785 m Wasseroberfläche 29 km² Stauseelänge 20 km Speicherraum 1,2 km³ Einzugsgebiet 3600 km²

Bemessungshochwasser: 2500 m³/s
Italiano: Il lago di Serre-Ponçon è un lago artificiale della Francia creato da una diga eretta lungo il fiume Durance, a valle della sua confluenza con l'Ubaye.

Con 1,2 miliardi di metri cubi di acqua ed una superficie di 28,2 chilometri quadrati è la terza più importante riserva d'acqua artificiale in Europa dopo la diga di Alqueva in Portogallo (regione dell'Alentejo) e quella del lago del Der-Chantecoq, ancora in Francia.

Altitudine 750 m s.l.m. Dimensioni Superficie 28,2 km² Profondità massima 90 m

Volume 1,272 km³
Date
Source Own work
Author Sylvain.grimaud

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