Neiwa
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Neiwa Не́йва, Невья (Newja) |
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 Koptelow Kamen rock group on the Neiwa near Alapayevsk |
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| Data | ||
| Water code | RU : 14010501612111200006329 | |
| location | Sverdlovsk Oblast ( Russia ) | |
| River system | If | |
| Drain over | Niza → Tura → Tobol → Irtysh → Ob → Arctic Ocean | |
| source | Central Urals northwest of Yekaterinburg 57 ° 6 ′ 14 ″ N , 60 ° 2 ′ 58 ″ E |
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| Source height | approx. 380 m | |
| muzzle | Confluence with the Resch to the Niza Coordinates: 57 ° 54 ′ 42 ″ N , 62 ° 18 ′ 39 ″ E 57 ° 54 ′ 42 ″ N , 62 ° 18 ′ 39 ″ E |
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| Mouth height | 74 m | |
| Height difference | approx. 306 m | |
| Bottom slope | approx. 1 ‰ | |
| length | 294 km | |
| Catchment area | 5600 km² | |
| Outflow at the Alapayevsk gauge |
MQ |
10 m³ / s |
| Medium-sized cities | Nevyansk , Alapayevsk | |
| Small towns | Verkh-Neiwinsky | |
| Communities | Neiwo-Rudjanka , Petrokamenskoje , Neiwo-Schaitansky | |
| Navigable | not navigable | |
 View of the Nevyansk Pond from the "Leaning Tower" of Nevyansk |
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 Location of the Neiwa (Не́йва) in the Tobol catchment area |
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The Neiwa ( Russian Не́йва ; previously also Невья , Newja ) is the 294 km long left source river of the Niza on the eastern edge of the Urals in Russia .
course
The Neiwa rises at a height of about 380 m on the eastern flank of the Middle Urals, almost 50 kilometers northwest of the metropolis of Yekaterinburg . It initially flows in a northerly direction and crosses several " ponds " (Russian prud ), smaller reservoirs that were created for mining purposes from the 18th century : the Werch-Neiwinski pond (Upper Neiwa pond) near Werch-Neiwinski , the Rudyansk Pond near Neiwo-Rudjanka and the Newjansk Pond near Nevyansk . Later the river turns in east to north-easterly directions and enters the eastern Ural foothills, which it flows through in a relatively narrow valley with long stretches of rocky banks. At Petrokamenskoje he crosses another reservoir, the Petrokamensk pond. The total area of these lakes is 72.4 km². The Neiwa flows through Alapayevsk and joins almost 40 kilometers east of the city with the somewhat smaller Resch to the Niza , a tributary of the Tura , which comes from the right and continues to flow into the Arctic Ocean via Tobol , Irtysh and Ob .
The Neiwa has no major tributaries, but it flows into a large number of streams, some of which played a role in the mining history of the region, such as the Alapaicha in Alapayevsk and the Sinyachicha below Nizhnyaya and Verkhnyaya Sinyachicha (both from left).
Hydrography
The catchment area of the Neiwa covers 5600 km². At the lower reaches it is more than 50 meters wide and about 1.5 meters deep; the flow velocity there is 0.4 m / s.
The mean flow rate on the lower reaches of Alapayevsk, still above the confluence of the Sinyachikha, is 10 m³ / s. At Cheremshanka on the upper middle reaches, 172 km from the mouth, the annual mean is still 6.46 m³ / s with a minimum of 2.2 m³ / s in February and a maximum of 21.9 m³ / s in April. The river freezes from November to April.
Use and infrastructure
The Neiwa is not navigable. Using the old mining ponds, the river provides water for industry and the population.
The upper reaches of the river are crossed several times by the Perm - Nizhny Tagil - Yekaterinburg railway, the former Ural mining railway . The regional road R352 from Yekaterinburg via Nizhny Tagil to Serow crosses the river near Nevyansk, which is similar to a motorway on this section . The Serov - Bogdanowitsch railway crosses it in Alapayevsk .
Individual evidence
- ↑ a b c Article Neiwa in the Great Soviet Encyclopedia (BSE) , 3rd edition 1969–1978 (Russian)
- ↑ a b Neiwa in the State Water Register of the Russian Federation (Russian)
- ↑ Neiwa at the Cheremshanka gauge - hydrographic data from R-ArcticNET