disadvantages of Multipurpose projects
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A PPT ON MULTI-
PURPOSE PROJECTS
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What is a multi purpose project
A multipurpose project is a large scale hydro project often including dams for water retention , canals for irrigation, water processing and pipe lines to supply water to cites and power generation. These often include transportation improvements and industrial growth. They are also developed to reduce the dangers of flooding.
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Tehri
Power
Irrigation
Domestic Water Supply
Flood Control
1204 MW
1181MW
815.6 MW
1920 MW
Kutch ,Saurashtra
10 million acres in Punjab, Himachal Pradesh, Delhi, Haryana and Rajasthan
270 million gallons of drinking water per day to the industrialized areas of Delhi, Uttar Pradesh and Uttarakhand
controls flooding of the lower delta region by the Mahanadi river
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Tehri
Inland Navigation
Recreation
Fish Breedingdiverts water from the Ganga into the Hoogly during the dry season to flush out accumulated silt and allow navigation through the Hoogly into the port of Kolkata
water-skiing, sailing, kayaking, speed boating and water scooter racing
fifty one species and sub species of fish. Also a water fowl refuge
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Some major multi-purpose projects in India
CHERUTHONI DAM
•KERALA
INDIRA SAGAR DAM •MADHYA PRADESH
KRISHNARAJASAGAR DAM •KARNATAKA
METTUR DAM •TAMIL NADU
BISALPUR DAM •RAJASTHAN
KOYNA DAM •MAHARASHTRA
MAITHON DAM •JHARKHAND
RIHAND DAM •UTTAR PRADESH
TUNGABHADRA DAM •KARNATAKA
BHAVANISAGAR DAM •TAMIL NADU
PROJECT • SITUATED IN
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BISALPUR DAMHeight: 130 ft.Length: 1883 ft
Type: Gravity DamRiver: Banas River
Location: RajasthanInstalled capacity: 172 MW
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Height: 339 ft.Length: 2,648 ft
Type: Rubble-Concrete damRiver: Koyna River
Location: MaharashtraInstalled capacity: 1,920 MW
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Height: 49.38 meters
Length: 2441 meters
Type: Earthen Gravity Dam
River: Tungabhadra River
Location: Karnataka
Installed capacity: 72 MW
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DISADVANTAGES OF MULTI-PURPOSE
PROJECTS
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The project will inundate thousands of acres of forests and agricultural land, a devastating blow to human lives and biodiversity.
The sheer size of the project, the Sardar Sarovar dam could bring about some of the worst environmental destruction in India.
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If completed, several hundred square miles of forest would disappear, destroying precious habitat for tigers, panthers, sloth bear, barking deer, several rare tree species, and hundred of plants with medicinal potential.
It may damage or destroy river based fisheries.
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These projects also generally displace hundreds of not millions of people from very fertile land thus reducing the productivity of these people.
They take away their livelihood and their homes of many generations.
Taum Sauk Hydroelectric Power Station
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• Natural flow of rivers is affected causing poor flow of sediments
• Excessive sedimentation of the reservoir
• Reservoirs submerge existing vegetation and soil leading to its decomposition
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Evaporation,Green House Gas emission
Displacement of local tribes
Destruction of historical and archaeological sites
Loss of natural biodiversity
Loss of Livelihood
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