Wien (river)
The Wien is a river that flows through the capital of Austria, Vienna.
Geography
The river Wien is long, of which are within the city. Its drainage basin covers an area of, both in the city and in the neighbouring Vienna Woods. Its source lies in the western Vienna Woods near Rekawinkel and its mouth at the eastern end of the city centre of Vienna, next to the Urania, where it flows into the Donaukanal, a branch of the Danube.Image:Wienfluss nahe Braeuhausbruecke Juni 2009.JPG|thumb|left|The Wien River in flood, near the Bräuhaus Bridge, June 2009
The Wien is subject to huge variations in flow. In its headwaters in the Vienna Woods, the soil is underlain by sandstone. Because of this, during heavy rain the soil quickly saturates, resulting in substantial runoff. Thus, the flow of the Wien can quickly increase from a creek-like to in the heaviest rains or during the spring snowmelt in the Vienna Woods, a ratio of over 1:2000.
The Wien River and the city of Vienna
Within the city limits, the river bed consists almost entirely of concrete, which was installed between 1895 and 1899 in order to stop the devastating floods, sometimes accompanied by cholera, which the river had regularly caused before that time. At the same time, the Stadtbahn was built, which makes use of the concrete river bed and is only separated from the river by a wall. It is now part of the Vienna U-Bahn system.Along the course of the river, the Naschmarkt and the Theater an der Wien can be found. Much of the river is covered over in the city, particularly in front of Schönbrunn Palace, in the Meidling and Naschmarkt neighbourhoods and around Karlsplatz near the city centre.
The River Gate was built in Jugendstil between the years 1903 to 1906 and was opened to the general public on 15 November 1906.
In April 2013, the City of Vienna approved plans to build three terraces along the river valley. Each terrace will cover a total area of. The first terrace was expected to be completed by 2015.