“the largest lake”
Within the area of many rivers belonging to the basins of the Kama, Tobol and Ural. Because here, basically, their upper reaches, they are shallow.
Rivers longer than 10 km there are in the field 348, their total length is 10235 km
The length of 100 km are only 17 rivers. And only 7 rivers Miass, UY, Ural, ay, Ufa, Uvelka, gumbeyka – are in the range of length greater than 200 km.
Most of the territory of the region belongs to the basin of the Ob. To the East, at Tobol and its left tributaries, flows the majority of rivers of Chelyabinsk in the Urals: Ekaterinburg, the Techa river, Miass, Uvelka, UY, toguzak, Kartaly-Ayat, sintashty and others.
Miass river originates on the Eastern slope of the ridge. Nurali, flows first between the mountains to the North, and then, turning to the East at the Karabash, crosses the forest-steppe zone and flows into the Iset river at the boundaries of the area. Its length within the area is 384 km (out of 658 total length).
Regulators of flow of Miass are Argazi and Shershnevskoye reservoir. Currently 70-80% of the water of the river Miass flows through the pipelines and only 20-30% flows through the natural course. Four-fifths water the city pays to the needs of the national economy. Provides for the transfer of water in the basin of the river Miass R. from Ufa. After the implementation of the project in Miass amount of water will be doubled. The hydraulic system is built with Dolgobrodskaya reservoir in the upper reaches of the river Ufa.
The UY river originates from the spurs of the Ural-Tau ridge, flows eastward, crossing the entire area. The direction of its flow almost coincides with the boundary between forest-steppe and steppe zones. The total length of the river is 462 km, of which 370 km are within our region. Left UY receives large inflows – Uvelka. The rivers in Troitsk. On UE and Uvelke built the dam that formed a large reservoir to the South Ural and Troitskaya GRES.
Prairie river Sintashta, Kartaly-Ayat and toguzak in the most severe winter freeze. In a flood the water rises to 2 m.
To the South, in the Caspian sea, the river Ural with such significant left tributaries within the area, as Gumbeyka, Large, important because of its and other. The Ural river starts near Round mountain on the ridge of Ural-Tau and flows through the territory of our region with their upper reaches (357 km of total length of 2428 km). The direction of flow in the meridional field.
Ural refers to the rivers almost exclusively with snow feeding. In the spring he spends up to 80-90% of annual runoff. At this time the water level rises up to 2.5-3 m higher than normal. The Urals is among the largest rivers of Europe. During the construction of the steel plant at Magnetic mountain on the Ural river was erected a dam that formed a “sea of Magnitogorsk”. North of Magnitogorsk was later built the second dam with a height of 16 meters and created Verkhneuralsky reservoir.
River mountain zones: Ufa, AI, Yuryuzan, Shem, and others, flowing in a North-westerly direction, belong to the Volga-Kama basin. For them, as mountain rivers, characterized by a rocky bottom, fast current, especially in the shallows, narrow valleys, steep banks. On many rivers, mountain areas, starting from the XVIII century, created a reservoir – factory ponds: Nizhneuvelskaya, Satka, Yuruzan machinery construction, Katav-the Ivanovo and others. They all remained still and play a significant role in water supply. Recently in the mountain rivers there are new major reservoirs to supply Chrysostom (on the Braid and AE), Miass (Iremelica reservoir, Kalima and Allene) and Yekaterinburg (Ufa).
Resources of river runoff in an average multi-year PE-riod approximately 6.3 cubic km/year, and in dry years, decreasing to 2.7 cubic km/year. The need for water in the area already exceeds 10 cubic km/year.