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MULTI-PURPOSE RIVER PROJECTS AND INTEGRATED WATER RESOURCES
Transcript of MULTI-PURPOSE RIVER PROJECTS AND INTEGRATED WATER RESOURCES
A river valley multipurpose project is a project which covers the development of dam on a sufficiently large river extended over a large geographical area.
It serves many purposes at a single time like acting as a hydroelectric power plant, providing a source of clean drinking water, providing irrigation to fields, checking floods and flow of river water etc.
MULTI-PURPOSE RIVER PROJECTS
Many hydraulic structures were found in India since 1st century BC in sringaverapura near Allahabad. This place had sophisticated water harvesting system for channeling the flood water of river Ganga.
During the time of Chandragupta Maurya, dams ,lakes and irrigation system were extensively built.
Many other dam structures were also found in Kalinga, Kolhapur ,Nagarjunakonda(AP), Bennur (Karnataka).
Later, Bhopal lake (one of the largest artificial lake of its time was built) .
Later on , the tank in Hauz Khas, Delhi was constructed by Illtutmish for supplying water to Siri Fort area.
A Dam is a barrier across flowing water that obstructs, directs or retards the flow, often creating a reservoir , lake or impoundment.
It refers to a reservoir rather than a structure.
Most dams have a section called a spillway or weir over which or through which it is intended that water will be either intermittently or continuously.
Dams were traditionally built to impound water for later irrigational uses
Today, dams are not only used for irrigation but also for electricity generation, water supply for domestic and industrial uses.
Hence dams are referred to multi purpose projects where the many users of the impounded water are integrated with one another.
Lake Vyrnwy Dam
Band-e Kaisar Dam
Dams in India
There are approximately over 3200 dams in India which are situated on rivers and lakes.