Selemdzha River

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Position of Selemdscha ( Селемджа ) in the catchment area of the Zeya

Template: Infobox River / Obsolete

The Selemdscha (Russian Селемджа ) is a 647 km long left tributary of the Zeya the Russian Far East ( Asia).

Course

The Selemdscha rises in about 1550 m altitude in the northern part of the more than 2,000 m high Burejagebirges on the border of the Amur Oblast to the Khabarovsk region. A few kilometers away from the source to meet three of the main ridges of the mountains meet: Dusse -Alin from the south west of Esop and Jam -Alin from the north; little south spring the headwaters of the Bureya.

First, the Selemdscha flows as fast mountain river in a narrow valley to the northwest and then turns west, with the valley below Ekimtschan widened. The east-west direction north of this section of the river running mountain ranges are named after him Selemdschagebirge. East Fewralsk reached the river the Zeya - Bureya plane along its northwestern border, it flows in south-west directions in the further course.

The Selemdscha opens at Rajonverwaltungszentrum Nowokijewski Uwal, about 60 kilometers northeast of the city Svobodny as its most important tributary at 155 m altitude in the Zeya. At its entire length, the Selemdscha flows through the territory of the Amur Oblast.

The largest tributaries are Kumussan, Selitkan, Nora and Orlowka from the right as well as Ulma, Kharga, Ogodscha, Gerbikan, Byssa and Aldikon from the left. In the catchment area of the river there are about 4500 lakes with a total area of ​​more than 270 km ².

Hydrographic

The catchment area of ​​68,600 km ² comprises Selemdscha. In estuaries near the river reaches a width of up to 300 meters and three meters deep; The flow rate is 0.8 m / s

The average discharge is in estuary near 715 m³ / s, with a minimum of 5 m³ / s in March and an absolute maximum of 10,300 m³ / s in June.

The Selemdscha freezes from early November to early May.

Economy and infrastructure

The Selemdscha is 146 kilometers from the village Norsk, below the confluence of Nora, navigable. At high water level it is more about 200 miles to Ekimtschan passable.

Towards the end of the 19th century began gold mining in the area of the upper Selemdscha. 1882 was a first settlement on site of the present Ekimtschan ( administrative center of the homonymous, the whole of the Selemdscha upper and middle run comprehensive Rajons ). In the Soviet period the gold mining was intensified: in the 1940s and 1950s, the settlements of urban type Koboldo and Stoiba arisen in this context immediately at the Selemdscha and Tokur, Slatoustowsk and Ogodscha of its tributaries. These places are accessible by a road that branches off from the highway M58 Amur at Svobodny and initially the Seja, the Selemdscha following sections in the immediate vicinity.

Since the 1980s, the Baikal - Amur Mainline crosses on a 700 -meter long bridge, one of the longest in the route, the middle reaches of the Selemdscha. Not far greater station originated with associated settlement. The Fewralsk founded in 1896 and 1982 for urban-type settlement is charged today with nearly 5,000 inhabitants the biggest town on the river. In the course of the road to Ekimtschan there is no bridge, but 30 km above the village Fewralsk Selemdschinsk a ferry.

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