Neyva River
Rock group Koptelow Kamen on the Neiwa at Alapayevsk
Overlooking the pond Newjansker the " Leaning Tower " of Nevyansk
Position of Neiwa ( Нейва ) in the catchment of Tobol
The Neiwa (Russian Нейва; formerly Невья, Newja ) is the 294 km long left frontal flow of Niza on the eastern edge of the Ural Mountains in Russia.
Course
The Neiwa rises at an altitude of about 380 m on the eastern flank of the Middle Urals, some 50 kilometers northwest of the city of Yekaterinburg million. They first flows in a northerly direction, crossing several " ponds " (Russian prud ), smaller reservoirs that were created for mining purposes from the 18th century: the Verch - Neiwinski Pond ( Upper Neiwa Pond ) at Novouralsk and Verch - Neiwinski, the Rudjansker pond at Neiwo - Rudjanka and Newjansker pond at Nevyansk. Later, the river turns to the east to northeasterly directions and enters the eastern Uralvorland through which it flows in a relatively narrow valley with rocky shores on long drives. In Petrokamenskoje he crosses them one reservoir, the Petrokamensker pond. The total area of these lakes is 72.4 km ². The Neiwa flows through Alapayevsk and unites nearly 40 kilometers east of the city with the slightly smaller, coming from the right to the Resch Niza, a tributary of the Tura, which will continue under Tobol, Irtysh and Ob of the Arctic Ocean will flow.
The Neiwa has no major tributaries, but it opens a large number of streams, which some in the mining history of the area played a role in how the Alapaicha in Alapayevsk and Sinjatschicha below Nischnjaja and Verkhnaya Sinjatschicha (both from the left).
Hydrographic
The catchment area of 5600 km ² comprises Neiwa. In the lower reaches it is more than 50 meters wide and 1.5 meters deep; where the flow rate is 0.4 m / s
The mean runoff in the lower reaches at Alapayevsk, still above the confluence of the Sinjatschicha is 10 m³ / s In Tscheremschanka at the upper middle reaches, 172 km from the mouth, it is in agents 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. This river is using the old mining ponds of water supply for industrial and population.
The headwaters of the river several times by the railway line Perm - Ekaterinburg crosses, the former Ural mine train - Nizhny Tagil. In Nevyansk also on this section highway-like -developed regional road R352 from Yekaterinburg about Nizhny Tagil crosses by Serow the river. In Alapayevsk it crosses the railway line Serow - Bogdanovich.