ER.NAIK SAMEER RAMCHANDRA

1. MAJOR DAMS IN INDIA
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PRESENTATION BY,
NAIK SAMEER RAMCHANDRA
[MT18WRE001]

2. KOYNA DAM (MAHARASHTRA)
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3. INTRODUCTION
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, nestled
in the Western Ghats on the state highway between
Chiplun and Karad.
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4. ABOUT DAM
• Construction began - 1956
• Opening date - 1964
• TYPE OF DAM- Rubble-concrete dam
• Height - 103.2 m (339 ft )
• Length - 807.2 m (2,648 ft)
• Creates - SHIVAJISAGAR LAKE
• Total capacity- 2,797,400,000 m
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• Surface area- 891.78 km
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• Basin- Krishna , west flowing river.
• Total Projects cost - 4,953 Crore Rupees
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OFFICIAL NAME Koyna Dam D05104

5. PURPOSE
The main purpose of the dam is hydroelectricity
generation
Some irrigation in neighboring areas.
Flood control
Navigation
Domestic purpose
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6. POWER STATION
Turbines
Koyna 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 Pelton turbines
Installed capacity - 1,960 MW
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7. WATER POWER ENGINEERING
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8. INDEX PLAN- KOYNA H.E.PROJECT
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9. LAKE TAPPING
Lake Tapping – A nonconventional intake system
was created by piercing the lake from the bottom by
blasting the rock plug using dynamite.
Explosive used for the lake tapping were specially
bought from Denmark.
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10. LAKE TAPPING (KOYNA)
 The first lake tapping was
done successfully in 1999
which produces 65TMC
water
 second lake tapping was
done on 26th April 2012
and water rose upto 15 ft
high creating waves.
 The process of double
tapping was the first of its
kind in ASIA
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11. LAKE TAPPING (KOYNA)
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12. EARTHQUAKE: KOYNANAGAR
 The Koyna earthquake of December 11, 1967, killed about 200
people and injured a few thousand. and it occured near the the
site of koyna dam
 The epicentre was within 5 km of the Koyna Dam
(17° 23′ N., 73° 45′ E.).
 The depth of focus of the earthquake has been estimated at
about 30 km.
 The earthquake was felt over distances up to 700 km from the
epicentre.
 Total damage: 4 lakhs USD
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13. ABOUT KOYNANAGAR EARTHQUAKE
• Construction began-
1956
• Opening date-1964
• Earthquake date:
11 December
1967
Max. intensity: IX (Severe)
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ACCELERATION VS TIME

14. Koyna
Earthquake in
near by Area
in1967 after
Dam was Built
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15. REFERENCE
 G.V.Berg, Y.C.Das,K.V.G.K.Gokhale and A.V.Setlur, “THE
KOYNA,INDIA,EARTHQUAKES.”, poc.4th wld conf.
Earthquake Eng.,Santiago,chile,1969
 www.mahagenco.in (Maharashtra state power generation
Co.Ltd)
{ Nagivation – generation - Hydropower station-
c) koyna hydro}
 sudhir k. jain “Indian earthquake-The koyna”-(max intensity)
 National Geophysical Research Institude(NGRI)
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16. THANK YOU
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