The Aller is a 215-kilometre-long (134 mi) river in the states of Saxony-Anhalt and Lower Saxony in Germany. It is a right-hand, and hence eastern, tributary of the Weser and is also its largest tributary. Its last 117 kilometres (73 mi) form the Lower Aller federal waterway. The Aller was extensively straightened, widened and, in places, dyked, during the 1960s to provide flood control of the river. In a 20-kilometre-long (12 mi) section near Gifhorn, the river meanders in its natural river bed.
The Lech is a river in Austria and Germany. It is a right tributary of the Danube 255 kilometres (158 mi) in length with a drainage basin of 3,919 square kilometres (1,513 sq mi). Its average discharge at the mouth is 115 m3/s (4,100 cu ft/s). Its source is located in the Austrian state of Vorarlberg, where the river rises from lake Formarinsee in the Alps at an altitude of 1,870 metres (6,120 ft). It flows in a north-north-easterly direction and crosses the German border, forming the Lechfall, a 12-metre-high (39 ft) waterfall; afterwards the river enters a narrow gorge. Leaving the Alps, it enters the plains of the Allgäu at Füssen at an elevation of 790 metres (2,580 ft) in the German state of Bavaria, where it used to be the location of the boundary with Swabia. The river runs through the city of Füssen and through the Forggensee, a man-made lake which is drained in winter. Here, it forms rapids and a waterfall.
The Kostroma is a river in the European part of Russia. It flows through the Kostroma and Yaroslavl Oblasts, and becomes a left tributary of the Volga, which it enters at the Gorky Reservoir, at the city of Kostroma.
The Timiș or Tamiš is a 359 km (223 mi) long river that flows through the Banat region of Romania and Serbia and joins the Danube near Pančevo, in northern Serbia. Due to its position in the region, it has been labeled as the "spine of the Banat".
The Enns is a southern tributary of the river Danube, joining northward at Enns, Austria. It forms much of the border between the states of Lower Austria and Upper Austria. The Enns spans 253 kilometres (157 mi), in a flat-J-shape. 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.
The Sió or Sió-csatorna (Sió-Channel) is a fully regulated river in midwest Hungary. It is the outlet, at the eastern end, of Lake Balaton, flowing out of the lake in Siófok. It flows into the river Danube near the city of Szekszárd. Sió flows through the Hungarian counties Somogy, Fejér and Tolna, its main tributaries are Kapos from the right and Sárvíz from the left. It is 124 km (77 mi) long and its basin size is 14,693 km2 (5,673 sq mi). The drainage basin of Sió covers more than a third of Transdanubia. Its average discharge at the mouth is 39 m3/s (1,400 cu ft/s).
The Naschmarkt is Vienna's most popular market. Located at the Wienzeile over the Wien River, it is about 1.5 kilometres (0.93 mi) long.
The Donauinsel is a long, narrow artificial island in central Vienna, Austria, lying between the Danube river and the parallel excavated channel Neue Donau. The island is 21.1 km (13.1 mi) in length, but is only 70–210 m (230–689 ft) wide. It was constructed from 1972 to 1988 primarily as a measure for flood protection.
Brigittenau is the 20th district of Vienna. It is located north of the central districts, north of Leopoldstadt on the same island area between the Danube and the Danube Canal. Brigittenau is a heavily populated urban area with many residential buildings.
The Sulm is a river in the Heilbronn district of Baden-Württemberg, Germany. It is an unnavigable right tributary of the Neckar. It rises in the Löwenstein Mountains and after 26.3 kilometres (16.3 mi) distance and 315 metres (1,033 ft) elevation drop flows into the Neckar at Bad Friedrichshall, near Untereisesheim and Neckarsulm. Its valley together with its tributary valleys is also known as the Weinsberg Valley, after Weinsberg, which is located there. The medieval region of Sulmgau, as well as the city of Neckarsulm, were named for it. The upper valley of the Sulm is a protected area.
The Robert-Bourassa generating station, formerly known as La Grande-2 (LG-2), is a hydroelectric power station on the La Grande River that is part of Hydro-Québec's James Bay Project in Canada. The station can generate 5,616 MW and its 16 units were gradually commissioned between 1979 and 1981. Annual generation is in the vicinity of 26500 GWh.
The Donaukanal is a former arm of the river Danube, now regulated as a water channel, within the city of Vienna, Austria. It is 17.3 kilometres (10.7 mi) long and, unlike the Danube itself, it borders Vienna's city centre, Innere Stadt, where the Wien River (Wienfluss) flows into it.
The Vienna Danube regulation refers to extensive flood-control engineering along the Danube river in Vienna, Austria during the last 150 years. The first major dams or levees were built during 1870-75. Another major project was constructed during 1972-88, which created the New Danube and Danube Island (Donauinsel). Prior to regulation, the Danube in Vienna had been an 8-kilometre (5 mi) wide wetlands, as a patchwork of numerous streams meandering through the area.
For a long time, it was not necessary to build a Harbour in Vienna, because the existing natural landing points were sufficient for the level of trade on the Danube. It was only when steamships began to arrive in great numbers that a harbour offering safe berths became essential. Even then however, goods were for the most part loaded and unloaded at an unenclosed river harbour that was established at the end of the 19th century.
The hydrology of Hungary, is mostly determined by Hungary's lying in the middle of the Carpathian Basin, half surrounded by the Carpathian Mountains. All parts of the country have some outflow. All surface water gravitates towards its southern center, and from there, is united in the Danube, which flows into the Black Sea. The whole of Hungary lies within the Danube drainage basin.
The Schwarza is a river in Lower Austria. It is the left headstream of the Leitha.
The Ablach is a right tributary of the Danube. It rises on the European Watershed, which is only a hint in this area, from the Mindersdorfer Aach in the municipality of Hohenfels in the Landkreis of Konstanz. It is about 32 kilometres (20 mi) long.
The Gießenbach is a river of Austria. Its drainage basin is 64 km2 (25 sq mi).
