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Guerledan Dam

Guerledan Dam

General Information

Other name(s): Barrage de Guerlédan
Beginning of works: 1923
End of works: 1930
Status: in use

Project Type

Structure: Gravity dam
Function / usage: Hydroelectricity plant

Geographic Information & Related Structures

Location: Mur-de-Bretagne, Côtes-d'Armor (22), Bretagne, France
Saint-Aignan, Morbihan (56), Bretagne, France
  • Blavet River

Technical Information


height 54.60 m
retained water volume 51.00 hm³
crest length 206.00 m
crest thickness 1.50 m
base thickness 33.50 m
dam volume 110 000 m³


dam structure concrete

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