The Bezdna (Russian: Бездна; Tatar: Бизнә) is a river in Tatarstan, Russian Federation, a left-bank tributary of the Volga, flowing into the Kuybyshev Reservoir near Kuralovo, Spassky District. It is 45 kilometres (28 mi) long, and its drainage basin covers 805 square kilometres (311 sq mi).[1]

Bezdna
Map
Location
CountryTatarstan, Russia
Physical characteristics
MouthVolga
 • location
Kuralovo, Spassky District
 • coordinates
54°59′10″N 49°20′02″E / 54.9861°N 49.3338°E / 54.9861; 49.3338
 • elevation
53 m (174 ft)
Length45 km (28 mi)
Basin size806 km2 (311 sq mi)
Discharge 
 • average197 m3/s (7,000 cu ft/s)
Basin features
ProgressionVolgaCaspian Sea

The maximal mineralization is 300–500 mg/L. The average sediment deposition at the river mouth is 129 millimetres (5.1 in) per year. In 1963 the average discharge was 197 cubic metres per second (7,000 cu ft/s).[2] The town of Spassk, the ancestor of modern Bolgar stood on the river prior to 1956. In 1956–57 the Kuybyshev reservoir was created, flooding the town and the lower stream of Bezdna.

References

edit
  1. ^ «Река Бездна», Russian State Water Registry
  2. ^ "Бизнә". Tatar Encyclopaedia (in Tatar). Kazan: The Republic of Tatarstan Academy of Sciences. Institution of the Tatar Encyclopaedia. 2002.