Koyna Dam

The Koyna Dam is one of the largest dams in Maharashtra, India. It is a rubble-concrete dam constructed on Koyna River which rises in Mahabaleshwar, a hillstation in Sahyadri ranges. It is located in Koyna Nagar, Satara district, in the Western Ghats on the state highway between Chiplun (44 KM) and Karad (58 KM).

Koyna Dam
कोयना धरण
Konya Dam as it releases water during the 2021 Maharashtra floods.
Location of Koyna Dam in Maharashtra
Official nameKoyna Dam D05104
LocationKoyna Nagar, Maharashtra
India
Coordinates17°24′06″N 73°45′08″E
Construction began1956
Opening date1964
Owner(s)Government of Maharashtra
Dam and spillways
Type of damRubble-concrete dam
ImpoundsKoyna River
Height103.2 m (339 ft)
Length807.2 m (2,648 ft) (0.8 km)
Spillways6 Gates
Reservoir
CreatesShivasagar Lake
Total capacity2,981,000,000 m3 (2,417,000 acre⋅ft) OR 105.27 tmc ft
Surface area891.78 km2 (344 sq mi)
Power Station
TurbinesKoyna dam foot powerhouse: 2 x 20 MW
stage 1: 4 x 70 MW
stage 2: 4 x 75 MW
stage 3: 4 x 80 MW
stage 4: 4 x 250 MW
Total = 18 Francis turbines
Installed capacity1,960 MW
Official website
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