Umeälven

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Umeälven

 

a river in central Sweden. The Umeälven is about 450 km long and drains an area of 26,700 sq km. It originates in Lake Overuman at an elevation of 520 m. The river crosses the Norrland Plateau in a narrow forested valley, forming rapids and waterfalls and flowing through several lakes, the largest of which is Lake Storuman. The river empties into the Gulf of Bothnia of the Baltic Sea. The Umeälven’s principal left tributary is the Vindelälven, which is 445 km long.

On the Umeälven, high water occurs in spring and summer. The average flow rate near the mouth is 510 cu m per sec. The river is frozen over from November to May. It is used for floating logs. Hydroelectric power plants are located at various waterfalls along the river; the plants include that of Stornorrfors with a capacity of 375 megawatts. The cities of Lycksele and Vännäs are on the Umeälven, and the seaport of Umeå is located near the river’s mouth.

References in periodicals archive ?
Most of the area is drained by two large rivers, Umealven and Vindelalven, which rise in the mountain range in the west, receive numerous confluents, and finally merge not far from the river mouth at the Baltic Sea.
14 April 2010 - Swedish company NCC AB (STO: NCC B) said today that it has won a SEK210m contract to expand the Balforsen hydropower plant at Umealven, outside Lycksele, northern Sweden.
An outdoor pen supplied with a heating bulb served as a "nest." Initially ducklings had free and direct daytime access to a fenced area along the shore of Umealven river, permitting them to search for food in water in a natural manner.
The new orders include the renovation of turbine details for the Stensele power station on the Umealven river and the renovation of the external turbine cover for the Hojum power station on the Gota alv river.
Holmen said that it would buy back assets with a capacity of 541 GWh on the Umealven river in Sweden for approximately SEK1.7bn.