Maridalsvannet

Maridalsvannet
Maridalsvannet
Location	Maridalen, Oslo
Coordinates	Coordinates: 59°59′N 10°47′E / 59.983°N 10.783°E / 59.983; 10.783
Primary inflows	Skjærsjøelva and Dausjøelva
Primary outflows	Akerselva
Basin countries	Norway
Surface area	3.83 km2 (1.48 sq mi)
Surface elevation	149 m (489 ft)

Maridalsvannet (English: Lake Maridal) is a lake in Maridalen, Oslo, Norway. It is the largest lake in the municipitality of Oslo, and serves as the main drinking water supply for the city. The lake drains via the river Akerselva to the Oslofjord. The primary inflows are Skjærsjøelva and Dausjøelva. The Hammeren Hydroelectric Power Station exploits the fall from Skjærsjøen to Maridalsvannet.