| Kuybyshev Reservoir | |
|---|---|
 nearUlyanovsk | |
  Kuybyshev Reservoir | |
| Coordinates | 53°46′38″N48°55′46″E / 53.77722°N 48.92944°E /53.77722; 48.92944 |
| Lake type | Hydroelectricreservoir |
| Primary inflows | Volga,Kama,Sviyaga,Kazanka,Bolshoy Cheremshan |
| Primary outflows | Volga |
| Basin countries | Russia |
| Max. length | over 500 km (310 mi) |
| Max. width | 35 km (22 mi) |
| Surface area | 6,450 km2 (2,490 sq mi) |
| Average depth | 8 m (26 ft) |
| Max. depth | 41 m (135 ft) |
| Water volume | 57.3 km3 (13.7 cu mi) |
| Shore length1 | 2,604 km (1,618 mi) |
| Surface elevation | 53 m (174 ft) |
| Islands | Sviyazhsk |
| Settlements | |
| 1 Shore length isnot a well-defined measure. | |
Kuybyshev Reservoir orKuybyshevskoye Reservoir (Russian:Куйбышевское водохранилище,romanized: Kuybyshevskoye vodokhranilishche) is areservoir of the middleVolga and lowerKama inChuvashia,Mari El Republic,Republic of Tatarstan,Samara Oblast andUlyanovsk Oblast,Russia.[1] It is sometimes called asSamara Reservoir and informally calledKuybyshev Sea. The Kuybyshev Reservoir has a surface area of 6,450 km² and a volume of 58 billion cubic meters. It is the largest reservoir inEurope and third in the world by surface area. The major cities ofKazan,Ulyanovsk, andTolyatti are adjacent to the reservoir.
The reservoir was created by the dam ofZhiguli Hydroelectric Station (formerly, V.I. Lenin Volga Hydroelectric Station), located between the cities ofZhigulevsk and Tolyatti inSamara Oblast.[2] It was filled in 1955–1957.[citation needed]
With the filling of the reservoir in the 1950s, some villages and towns were submerged by the rising water and were rebuilt on higher ground. These included the old fortress town of Stavropol-on-Volga, which was replaced by Tolyatti. One district of Ulyanovsk is below water level and is protected from the reservoir by anembankment.[citation needed]
In 1926, afossilized tooth ofPtychodus latissimus paucisulcata was found in redeposited sediments of Tunguz sand spit, which was later flooded by the waters of the reservoir.[3]
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