Sysola River

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The 487 km long Syssola (Russian Сысола, komi Сыктыв, Syktyw ) is a left tributary of the Vychegda in the northeast of the European part of Russia.

Course

The Syssola rises in almost 220 meters above sea level on the northern flank of the North Russian land back ( Severnye Uwaly ) in the extreme north of the Kirov Oblast about 70 kilometers northwest of the city Kirs. It flows initially in predominantly north-westerly direction, the mostly densely forested area and soon reached it, the territory of the Republic of Komi. At the confluence of the larger tributary Bolschaja Wisinga the river turns north- northeast direction and maintains this to its mouth in the Vychegda, the largest right tributary of the Northern Dvina River, in the big city and the capital of the Republic of Komi Syktyvkar in that since 1930, after the named Komi name of the river (about " city on Syktyw "; former Russian name Syssolskoje, later Ust- Syssolsk, was derived from the Russian river names, with ust of Ustje for " mouth " is ).

The main tributaries except the Bolshaya Wisinga are Nydym, Lepju and Poinga from the right, and Kom, Tybju, and Malaya ( Small ) Wisinga from the left. The Syssola is in the lower reaches in places to nearly 200 m wide and 2 m deep; the flow rate here is 0.5 m / s

Hydrographic

The catchment area covers 17,200 km ². In Pervomaisky, 138 km above the mouth and below the mouth of the Bolshaya Wisinga the average flow is 105 m³ / s at a minimum of 31.5 m³ / s in March and a maximum of 448 m³ / s in May.

The Syssola freezes between the end of October / November and the end of April / beginning of May; the following spring flood continues into June.

Economy and infrastructure

The Syssola is navigable for 323 kilometers from the village Koigorodok to the mouth ..

The catchment area of the river is inhabited total thin. Besides the city of Syktyvkar in the mouth, there are no major towns close to the river, but upstream to the upper middle reaches of many small villages. From the mouth of the Bolshaya Wisinga, at a few kilometers up the settlement Wisinga is, to Syktyvkar follows the highway " Vyatka " at some distance from the left bank. In Syktyvkar near the mouth of the road crosses after Krasnosatonski and further the Vychegda up on a bridge the Syssola.

The entire area of Syssola is primarily used for forestry. To this end, several railway lines were from the 1930s built: from the south, a broad gauge track in the Oblast Kirov that operates through its branch lines the upper reaches of Syssola, as well as a number of narrow gauge railways ( gauge 750 mm) from various villages on the Syssola to the lying in the hinterland logging fields such as Pervomaisky, Saoserje, pods and Koigorodok. These tracks had a maximum total length of several hundred kilometers and are on shorter sections still in operation today.

In railway construction and logging in the area of the prison camp were particularly between the 1930s and 1950s a large scale inmates used in the Gulag system, so the SewLag ( " North Camp" ) with management in Syktyvkar and the WjatLag ( " Vyatka - camp" ) to management in Rudnitschny, Kirov Oblast.