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Mattenalp Year: 1950
Height: 27 m
Volume of the Dam: 11000 m3
 Type: Poids/terre
Crest Length: 140 m
 Fondation: Rock/Soil
Town: Innertkirchen
 Canton: Bern
Owner: Kraftwerke Oberhasli AG, Innertkirchen
Reservoir

River: Urbach
Volume: 2.1 mio m3
 Watershed: 36.2 km2
Surface: 17.8 ha
 Length: 0.8 km
 Situation
Spillway
 Length view
Type: Free overspill
 Capacité: 120 m3/s
 Cross Section