Svir (redirected from Svir River)

Svir (svēr), river, c.140 mi (230 km) long, NW European Russia, flowing W from Lake Onega into Lake Ladoga. It is part of the Volga-Baltic Waterway. There are hydroelectric stations at Svirstroy and Podporozhye.

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Svir’ 

a river in Leningrad Oblast, RSFSR. The Svir’ originates in Lake Onega and empties into Lake Ladoga. It is 224 km long and drains an area of 84,400 sq km. The total gradient is approximately 28 m. The river’s flow is regulated by Lake Onega, the Verkhniaia Svir’ Hydroelectric Power Plant, which forms the Ivinskii overflow (area, 116 sq km), and the Nizhniaia Svir’ Hydroelectric Power Plant. The river’s mean flow rate is approximately 790 cu m per sec. The Svir’ freezes in November or December (sometimes January); the ice breaks up in the second half of April or first half of May. The Svir’ is part of the Volga-Baltic Waterway. The main landings are at Voznesen’e, Podporozh’e, Lodeinoe Pole, and Sviritsa.