Narva Reservoir

Narva Reservoir
Autumn view of Narva Reservoir from Kulgu harbor
Narva Reservoir
Coordinates	59°18′N 28°10′E / 59.300°N 28.167°E / 59.300; 28.167
Type	Reservoir
Primary inflows	Narva River, Plyussa River
Primary outflows	Narva River
Catchment area	55,848 km2 (21,563 sq mi)
Basin countries	Russia, Estonia, Latvia, Belarus
Surface area	191 km2 (74 sq mi)
Average depth	1.8 m (5 ft 11 in)[1]
Max. depth	15 m (49 ft)
Water volume	365 hm3 (296,000 acre⋅ft)
Residence time	12 days

Narva Reservoir (Estonian: Narva veehoidla; Russian: Нарвское водохранилище, romanized: Narvskoye vodokhranilishche) is a reservoir by the Narva River, shared by Russia and Estonia.

The reservoir was constructed during 1955–1956, during the Soviet era. It provides water to Narva Hydroelectric Station (installed capacity 125 MW, located on the Russian side and owned by the power company TGC-1), and cooling water to the Estonian Narva Power Plants. Its surface area at normal headwater level of 25 metres (82 ft) is 191 square kilometres (74 sq mi), of which 40 square kilometres (15 sq mi) belongs to Estonia. Its drainage basin is 55,848 square kilometres (21,563 sq mi).^[2]

The overall water exchange rate is high (about 30 times a year), with some almost stagnant areas. The ecological status is estimated as "good" (as of 2007).^[2]