Ferlacher Stausee, reservoir in Austria

Ferlacher Stausee is a man-made reservoir in Austria created by damming the Drau river. The water body stretches about 10 kilometers with shorelines bordered by green hills and forests, while calm water reflects the surrounding landscape most days.

The reservoir was constructed to generate electricity as part of a dam system along the Drau that supplies power to the region. Building the dam altered the river's natural flow and created today's lake, while railway tracks had to be raised to prevent flooding.

The reservoir's Slovenian name, Boroveljsko pregradno jezero, links it to the bilingual Drau valley south of Ferlach. The Rosentalbahn and the Loiblpass Straße cross the water, and the Hollenburger Brücke had to be rebuilt when the reservoir was created. The fish population is described as very diverse.

The reservoir is crossed by the Rosentalbahn railway and the Loiblpass road; the railway bridge had to be raised when the reservoir was built, and the Hollenburger Brücke was rebuilt. The northern shore is bounded by the slopes of the Sattnitz, while the southern side is held by a dike, with the Kleine Drau running at its foot.

The reservoir is crossed by the Rosentalbahn railway and the Loiblpass road; the railway bridge had to be raised when the reservoir was built, and the Hollenburger Brücke was rebuilt. The water is also described as holding a very varied fish stock.