- New Danube
The New Danube (German Neue Donau) is a side channel on the eastern side of the Danube in Vienna, Austria. It was created to provide flood relief by containing excess water. The Donauinsel (Danube Island), made out of the removed material, separates the new waterway from the main channel of the river. The project was referred to by the United Nations Human Settlements Programme (UN-HABITAT) as "the first truly multipurpose fully sustainable flood protection scheme."
The New Danube flows parallel to the river for approximately 21 kilometres (13 mi) through the Vienna metropolitan area. It diverges from the main channel in Langenzersdorf in Lower Austria (northwest of the city), flows through the 21st district, and rejoins it at the Danube-Auen National Park in the 22nd district (in the southeast). The channel is about 150 m wide; the island varies between 70 and 210 m in width. The current course of the New Danube and the site of the Danube Island were previously a broad landscape of meadows set aside as a floodplain in the first effort to manage Danube floods, in 1868–75. The left, northern bank of the New Danube is protected by the Hubertus Dam (Marchfeld Protective Dam), completed in 1875.
Following disastrous flooding in Vienna in 1954, years of discussion led to a new plan for regulating the Danube involving creating a relief channel and a long barrier island. Construction began in 1972 and was completed only in 1988.
At the beginning of the New Danube is a weir known as the influx building (Einlaufbauwerk), which is normally closed, making the New Danube a still body of water. When the Danube rises, it is opened to relieve pressure on the river and prevent flooding. This usually leads to a ban on swimming in the New Danube lasting for as long as several weeks, until the water quality improves. Further weirs are located just upstream of the Prater Bridge (Weir 1) and on the level of the Lobau oil terminal (Weir 2), approximately 1.5 km before the New Danube rejoins the main channel.
The New Danube can be reached via U-Bahn lines U6 (Neue Donau station) and U1 (Donauinsel station), via tram line 31 across the Floridsdorf Bridge, and via various city bus lines. It has stretches suitable for regattas—in September 2009 the World Rowing Masters Regatta took place there—and a waterski lift. The best known stretch of shoreline is the Copa Cagrana, next to the Reichsbrücke. Private motorboats are not permitted on the New Danube.
- ^ Einar Broch, et al., Hydropower '97: Proceedings of the 3rd International Conference on Hydropower, Trondheim/Norway/30 June-2 July, 1997, Rotterdam/Brookfield, Vermont: Balkema, 1997, ISBN 9054108886, p. 89: "the New Danube was built as an artificial spillway for flood protection."
- ^ Archiv für Hydrobiologie Supplement volume, Volume 155 (1995), p. 213.
- ^ a b c Flood Control on the Danube in Vienna, Austria - The Danube Island Project, 2006 Best Practices Database, The United Nations Human Settlements Programme, 2007, retrieved May 30, 2010.
- ^ Iwona Wagner, J. Marsalek, and Pascal Breil, Aquatic Habitats in Sustainable Urban Water Management: Science, Policy and Practice, Paris: UNESCO, Leiden: Taylor & Francis, 2008, ISBN 9789231040627, p. 195.
- ^ Michael Ludwig, Fritz Hofmann, and Martin Lang, 60 Jahre Wien 1945-2005, Vienna: Bohmann, 2005, ISBN 3901983570, p. 187 (German).
- ^ Flood Protection: Solution on the Danube at Vienna, Aquamedia.at, retrieved May 30, 2010.
- ^ Raimund Hinkel, Wien an der Donau: der grosse Strom, seine Beziehungen zur Stadt und die Entwicklung der Schiffahrt im Wandel der Zeiten, Vienna: Brandstätter, 1995, ISBN 3854475098, p. 72: "Die Wehre I (oberhalb der Praterbrücke) und II (am unteren Ende des Gerinnes)," "Gesamtlänge von 21,2 km von ihrem Anfang bei Langenzersdorf bis zu ihrem Ende beim Ölhafen Lobau (Wehr II)"
- ^ Official site, World Rowing, retrieved May 30, 2010.
- Plan of New Danube and Danube Island, City of Vienna (German)
A series of articles on regulation of the Danube in chronological order
- Internationalization of the Danube River, for events from earliest times to the Treaty of Paris in 1856
- Commissions of the Danube River, for the international bodies governing the waterway from 1856 to 1940
- Nazi rule over the Danube River
- Danube River Conference of 1948
- Danube Commission, for events since 1948
- International Commission for the Protection of the Danube River, for the organization established in 1998 and charged with environmental and ecological activities
- This article incorporates information from
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