Obernberger Seebach

Obernberger Seebach Fradermühle

The Obernberger Seebach is a creek in Tyrol with a length of around 12 km. It rises the Stubai Alps on the main Alpine ridge southwest of the Brenner Pass. Initially it flows north, flows through the Obernberger lake and then turns northeast. The creek flows through the Obernberger the valley, passing the place Obernberg am Brenner Gries am Brenner and flows into the Sill. In the first 5 km from the source to the upper mountain, the stream on an average gradient of about 10%. The valley floor to mountain top is relatively flat, only at the mouth of the valley of the brook falls in a narrow V-shaped valley again steeply to Wipptal from.

The average discharge at the level Gries am Brenner, 60 m above the mouth, is 1.9 m³ / s, which corresponds to a runoff of 32.6 l / s · km ². The creek has a nivales flow regime of moderate amplitude. The maximum discharge in June is well five times the minimum in February. Previously, the creek was feared because of high water, at dangerous places but was straightened, but his natural environment changed significantly.

The Obernberger Seebach supplied upper mountain and the surrounding area with drinking water. From the broader middle reaches live in him numerous fish such as rainbow trout and minnows. The water quality class is consistently stage I.

The water power of the river is used for many centuries, of which several old mills testify in Upper Mount ( Fradermühle, Michel mill, Old Kirchensäge ). In Vinaders and Gries are two power plants, which together produce around 8 GWh of electricity per year.