The  lake has a dam on the southern end to control the water for hydroelectric power. The lake flows out into the Follaelva river which flows into the Trondheimsfjord at the village of Follafoss.
A dam is located on the southern side of the lake to manage water for hydroelectric purposes. Water from the lake flows into the Follaelva river, which eventually joins the Trondheimsfjord at Follafoss village.