Enns (river)
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Enns River
The Ennstal between Stainach and Liezen
Enns (rivière).png
Physical characteristics
 • locationRadstädter Tauern (mountains)
 • location
Danube at Mauthausen
 • coordinates
48°14?13?N 14°31?08?E / 48.2369°N 14.5190°E / 48.2369; 14.5190Coordinates: 48°14?13?N 14°31?08?E / 48.2369°N 14.5190°E / 48.2369; 14.5190
Length253.4 km (157.5 mi) [1]
Basin size6,000 km2 (2,300 sq mi)
 • average201 m3/s (7,100 cu ft/s)
Basin features
ProgressionDanube-> Black Sea

The Enns is a southern tributary of the river Danube, joining northward at Enns, Austria. The Enns River spans 253 kilometres (157 mi), in a flat-J-shape.[2] It flows from its source near the village Flachau, generally eastward through Radstadt, Schladming, and Liezen, then turns north near Hieflau, to flow past Weyer and Ternberg through Steyr, and further north to the Danube at Enns (see map in References).[2]


The Enns has its source in the Radstädter Tauern mountains in the Austrian state of Salzburg. In a valley which developed during the ice age, it flows at the border between the Northern Limestone Alps and the Central Eastern Alps on an eastern trajectory through Styria, where it passes the Dachstein group at its southern side. Between Admont and Hieflau, it takes a turn to the North and passes through the Gesäuse, a gorge of a length of 15 km (9.3 mi), where it penetrates the limestone of the Ennstaler Alpen. Flowing to the north from there on, it reaches the state of Upper Austria at the mouth of the Laussabach [de]. North of Steyr, it forms the border between Upper Austria and Lower Austria (formerly also known as Austria above the Enns and Austria below the Enns). Finally, it meets the Danube at Mauthausen and the city of Enns.

The Enns is a typical wild water river and draws its water from an area of more than 6,000 square kilometres (2,300 sq mi), which is the fifth-largest in Austria. The average outflow at its mouth is 201 cubic metres per second (7,100 cu ft/s).

The Anisian Age in the Triassic Period of geological time is named from Anisus, the Latin name of the river Enns.


In the middle of the 19th century, canals began to be built along the 70 km (43 mi) between Weißenbach and the Gesäuse, in order to make use of the water for agriculture and forestry.

In total, ten power plants with a total generative power of 345 megawatts have been built by the Ennskraftwerke AG.

Towns along the river

in Salzburg

in Styria

in Upper Austria

Hydroelectric power stations

Currently, there are 15 hydroelectric power stations on the Enns.[3] The power stations are listed beginning at the headwaters:

Dam Nameplate capacity (MW) Annual generation (Mio. kwh)
Gstatterboden 2 6.8
Hieflau 63 388
Landl 25 135.5
Krippau 30 173.5
Altenmarkt 26 165.9
Schönau 30 122.8
Weyer 37 159.6
Großraming 72 270.7
Losenstein 39 170
Ternberg 40 169.7
Rosenau 34 145.5
Garsten-St. Ulrich 38 162.5
Staning 43 203.2
Mühlrading 25 111.8
St. Pantaleon 52 261.6


The most important inflows are the Palten [de], the Salza and the Steyr.


A major transit route connecting Germany and Slovenia through Austria runs through the Enns valley. The so-called Eisenstraße ("iron road") runs along the river between Hieflau and Enns, along which iron ore has been transported from the Styrian Erzberg ("ore mountain") to the steel mill in Linz.


  1. ^ Digitaler Atlas der Steiermark (Styria)
  2. ^ a b "Karte-Enns" (river map in German), RadTouren.at (Austria), May 2009, webpage: RT-map at the Wayback Machine (archive index) (236kb).
  3. ^ "Die Enns" (in German). Verbund. Retrieved .

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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