
Vienna, the capital of Austria, is home to the famous River Danube, which runs through nine other countries in Central and Southeastern Europe. The river is an important trade route and has played a vital role in the settlement and political evolution of the region. Vienna also has the Wien River, also known as the Vienna River or Wienfluss in German, which is a tributary of the Danube.
| Characteristics | Values |
|---|---|
| Name | Wien River, Vienna River, or Wienfluss |
| Length | 34 kilometres (21 mi) |
| Drainage Basin | 221 km2 (85 sq mi) |
| Source | Kaiserbrünndl, near Rekawinkel in the Vienna Woods |
| Mouth | Donaukanal ("Danube Canal"), a branch of the Danube |
| Flow Variation | 200 litres per second (7.1 cu ft/s) to 450,000 litres per second (16,000 cu ft/s) |
| Flood Control | Concrete riverbed installed between 1895-1899 |
| Attractions | Naschmarkt, Theater an der Wien, Schönbrunn Palace, River Gate |
| Tributaries | Danube River, Inn River |
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What You'll Learn

The Wien River, a tributary of the Danube, runs through Vienna
The Wien River has played a significant role in Vienna's history. Within the city limits, the riverbed is almost entirely concrete, installed between 1895 and 1899 to prevent the devastating floods that had previously plagued the area, sometimes accompanied by cholera outbreaks. The Stadtbahn, or "city railway", was built during this time and runs alongside the concrete riverbed, separated only by a wall. The River Gate, constructed in Jugendstil style and opened to the public in 1906, is another notable feature along the Wien River.
The Wien River is also an important part of Vienna's attractions and urban landscape. Along its course, one can find the Naschmarkt and the Theater an der Wien. While much of the river is covered over within the city, particularly near Schönbrunn Palace and in the Meidling and Naschmarkt neighbourhoods, it still offers opportunities for exploration and enjoyment. The Wien River provides a unique perspective on the city, and its banks feature bars, street art, footpaths, and cycle paths.
The Danube River, into which the Wien River flows, is the second-longest river in Europe, originating in the Black Forest of Germany and flowing southeast into the Black Sea. Along its course, it passes through or borders ten countries: Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Romania, Bulgaria, Moldova, and Ukraine. The Danube has been an important trade artery and a source of hydroelectric power, contributing to the economic growth of cities like Vienna, Budapest, and Belgrade located on its banks. The river has also played a significant role in the history and culture of the regions it traverses, including serving as a frontier of the Roman Empire and inspiring the famous waltz "The Blue Danube" by Austrian composer Johann Strauss.
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The Danube is the second-longest river in Europe
The Danube River is the second-longest river in Europe, stretching for 1,770 miles (2,850 kilometres) from its source in Germany's Black Forest to its mouth on the Black Sea. The river flows through Central and Eastern Europe, connecting and bordering ten countries: Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Romania, Bulgaria, Moldova, and Ukraine.
The Danube has played a significant role in the history and culture of the region. It once served as a frontier of the Roman Empire and was a vital commercial highway between nations. The river's majestic beauty has been celebrated in music, such as the famous waltz "An der schönen, blauen Donau" (1867) by Johann Strauss the Younger, which became a symbol of imperial Vienna. The Danube is also featured in literature and art, including the German tradition of landscape painting, the Danube school, which originated in the Danube valley in the 16th century.
The river's basin covers approximately 315,000 square miles (817,000 square kilometres) and includes a diverse range of natural conditions that influence the formation and regime of its watercourses. The Danube has numerous tributaries, with more than 30 of them being navigable. The river's upper course begins at its source and extends to the Hungarian Gates gorge in the Austrian Alps and the Western Carpathian Mountains. The middle course runs from the gorge to the Iron Gate in the Southern Romanian Carpathians, where the river's depth and current velocity fluctuate significantly.
The Danube is an important trade route and has been harnessed for hydroelectric power, contributing to the economic growth of cities along its banks, including Vienna, Bratislava, Budapest, and Belgrade. The river is known for its biodiversity, with approximately 5,000 species of animals, birds, and plants calling it home. The International Commission for the Protection of the Danube River works to conserve and maintain the river's natural heritage.
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The Danube flows through 10 countries
The famous river that runs through Vienna, Austria, is the Danube. The second-longest river in Europe, the Danube flows for some 1,770 miles (2,850 kilometres) from its source in the Black Forest mountains of western Germany to its mouth on the Black Sea.
The Danube passes through or borders ten countries: Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Romania, Bulgaria, Moldova, and Ukraine. It links the countries of the Balkan Peninsula and connects the Balkan region to the rest of Europe. The river has played a vital role in the settlement and political evolution of central and southeastern Europe.
The Danube's four sections comprise numerous tributaries, including the Inn, Iller, Lech, Isar, Traun, Enns, Morava, Drava, Tisza, and Sava. The river's drainage basin covers 315,000 square miles (817,000 square kilometres) and extends into nine additional countries. The Danube has been an important trade route and is now harnessed for hydroelectric power, contributing to the economic growth of cities along its banks, including Vienna, Bratislava, Budapest, and Belgrade.
The Danube Bike Trail, one of Germany's ten most popular bike trails, follows the river from its origin to the Black Sea. The river's majestic beauty has been celebrated in music, notably in the waltz 'An der schönen, blauen Donau' (The Blue Danube) by Johann Strauss the Younger, which became a symbol of imperial Vienna.
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The Danube is an important trade route
The Danube River is a vital trade route, connecting ten European countries and acting as a transport corridor between the Black Sea and Western Europe. With a length of 2,850 kilometres (1,770 miles), the Danube flows through Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Romania, Bulgaria, Moldova, and Ukraine.
Since ancient times, the Danube has served as a traditional trade route, connecting the Balkan Peninsula to the rest of Europe. The river's navigability has facilitated the movement of goods and people, contributing to the economic growth of cities along its banks, including Vienna, Budapest, and Belgrade. Today, the Danube remains an important transport artery, providing a waterway for large-scale vessels and supporting international trade.
The Danube's vast drainage basin covers approximately 315,000 square miles (817,000 square kilometres), encompassing a diverse range of natural conditions that influence the river's watercourses. The river network includes approximately 300 tributaries, more than 30 of which are navigable. These tributaries contribute to the river's capacity for transportation and commerce.
In addition to its role in trade, the Danube has been harnessed for hydroelectric power, particularly along its upper courses. The river's concrete riverbed, installed in the late 19th century, has helped prevent devastating floods in Vienna, making the city a stable hub for economic activity.
The Danube is also a significant tourist attraction, offering leisure cruises and cultural landmarks along its route. The river's scenic beauty, highlighted by attractions such as the Wachau Valley and the Nationalpark Donau-Auen in Austria, enhances its importance beyond its commercial value. Overall, the Danube River continues to play a vital role in trade, transportation, and tourism in Central and Southeastern Europe.
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The Wien River has been a source of devastating floods in Vienna
The Wien River, which runs through Vienna, Austria, has been a source of devastating floods in the city. In September 2024, heavy rainfall from Storm Boris caused the river to swell and overflow its banks, leading to flooding in several districts of Vienna. The water level of the Wien River rose rapidly, from 50 centimetres to 2.26 metres in just one day. This rapid increase in water level caused extensive flooding, with hiking and biking trails, restaurant terraces, streets, and underground parking garages submerged. Several homes were evacuated, and electricity was cut off in multiple districts.
The Wien River has a history of flooding in Vienna. In the past, before the installation of concrete along its banks, the river was known to cause devastating floods, sometimes accompanied by cholera outbreaks. The river's flow is subject to huge variations due to the underlying sandstone in its headwaters. During heavy rainfall or snowmelt, the flow can quickly increase from 200 litres per second to 450,000 litres per second, resulting in flooding.
To mitigate the impact of flooding, Vienna has implemented flood protection measures, including regular drills for emergency responders and the use of mobile walls to hold back water. These measures have proven effective, with officials noting that the city's flood management system successfully resisted the masses of water during the 2024 flood.
However, the reduction of floodplains upstream of Vienna has also contributed to increased flooding in the city. With fewer areas for water to expand without causing harm, the risk of rivers spilling over has increased. This, coupled with the intense rainfall brought by Storm Boris, created a perfect storm for devastating floods.
The 2024 flood highlighted the ongoing challenges of managing flood risks in Vienna. While the city's preparations and management strategies helped minimise the impact, the Wien River remains a potential source of devastating floods, particularly with the increasing frequency and intensity of extreme weather events.
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Frequently asked questions
The River Danube runs through Vienna, Austria. It is the second-longest river in Europe and passes through or borders ten countries.
The Danube is a large and historically important river. It was once a frontier of the Roman Empire and has been celebrated in music, including in the famous waltz, 'The Blue Danube' by Johann Strauss.
The Danube flows for approximately 2,850 kilometres (1,770 miles).
Yes, the Wien River (also known as the Vienna River or Wienfluss in German) is a 34-kilometre-long river that flows through Vienna. It is a tributary of the River Danube.
































