Erosion of Pondicherry beaches

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By Pondicherry Citizens Action Network – February 2007

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  • Thank you for the news of Tandhirayankuppam beach, once called Serenity beach. I have built a house there in 1978, and now Kasturi Mayakrishnan is in charge, asking me to come, but it is quite complicated for visas. What is the size of the beach now in october08 ?Do you think that erosion will put in the see as much land every year ?I would have been happy to have Tandhirayankuppam slides, month by month, and to show them to more people.I shall mention the name of the author of the slides if I know, or of the asociation, and I shall not use uch slides for commercial purpose. Thank you for your action .My adress is tron.dominique@gmail.com
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  • Erosion of Pondicherry beaches

    1. 1. Puducherry Port Disaster A Man-Made Tsunami Coastal Erosion at Puducherry and neighboring beaches of Tamil Nadu Pondicherry Citizens Action Network February 2007
    2. 2. Once upon a time … Pondicherry had a beautiful beach (1986) Pondicherry Citizens Action Network – February 2007
    3. 3. Nature’s gift to the citizens of Pondicherry (1986) Pondicherry Citizens Action Network – February 2007
    4. 4. <ul><li>Protects us from cyclones and tsunamis </li></ul><ul><li>Prevents our ground water from becoming saline </li></ul><ul><li>Supports the livelihood of fishermen </li></ul><ul><li>Provides a natural recreational space </li></ul><ul><li>Used during festivals (Masimagam) </li></ul>THE BEACH… an essential part of the ecosystem Pondicherry Citizens Action Network – February 2007
    5. 5. Then a harbour was built (1986-1989)……and neglected Harbour entrance Pondy town 2 kms Pondicherry Citizens Action Network – February 2007
    6. 6. Pondy was never the same …a precious gift was lost (2000) Pondicherry Citizens Action Network – February 2007
    7. 7. How did we lose our beach?
    8. 8. <ul><li>The sand movement along this coastline is one of the highest in the world </li></ul><ul><li>9 months / year it moves northwards - 0.6 million cu m </li></ul><ul><li>3 months / year it moves southwards - 0.1 million cu m </li></ul><ul><li>The net displacement northwards 0.5 million cubic meter </li></ul>Pondicherry Citizens Action Network – February 2007
    9. 9. Any construction obstructs this sand movement Sand depleted Sand accumulated Pondicherry Citizens Action Network – February 2007 Original shoreline Seawall
    10. 10. Satellite image of Puducherry coastline (Year 2000) Receded shoreline Blocked sand National Institute of Port Management has stated that the harbour is the cause of this coastline erosion Harbour Pondicherry Citizens Action Network – February 2007
    11. 11. Because of this harbour Puducherry has lost about 9 million cu.m of sand (1.5 million lorry loads) Pondicherry Citizens Action Network – February 2007
    12. 12. How is this erosion affecting Puducherry? Pondicherry Citizens Action Network – February 2007
    13. 13. Waves break on sand bar Pondicherry Citizens Action Network – February 2007 Sand bar protected us from big waves As sand bar has gone, the waves crash on to the road
    14. 14. Waves spilling over seawall during cyclone (2000) Pondicherry Citizens Action Network – February 2007
    15. 15. Le Café damaged due to beach erosion Pondicherry Citizens Action Network – February 2007
    16. 16. The Beach Road is SINKING! Pondicherry Citizens Action Network – February 2007 Portion away from the sea is intact Portion closer to the sea is damaged
    17. 17. What did the Government do? Pondicherry Citizens Action Network – February 2007
    18. 18. Dumped rocks along the coast Pondicherry Citizens Action Network – February 2007
    19. 19. Dumping rocks is not a solution <ul><li>Increases erosion </li></ul><ul><li>Work has to continue forever as rocks keep sinking </li></ul><ul><li>Requires huge sums of public money </li></ul><ul><li>Does not protect us from big waves </li></ul><ul><li>Mountains have to be destroyed </li></ul>Is this sustainable? Pondicherry Citizens Action Network – February 2007
    20. 20. Seawall ends in Pondy… the problem shifts to Tamil Nadu Pondicherry Citizens Action Network – February 2007 Thanthirayan Kuppam Sea Wall
    21. 21. The harbour has destroyed 7 kms of shoreline in Puducherry and Tamilnadu Satellite image of Puducherry and Tamil Nadu coastline (2006) 7 kms Pondicherry Citizens Action Network – February 2007
    22. 22. THENGAITHITTU- The village most affected Saltwater intrusion making their lands barren Sand logging affecting livelihoods of fishermen Mangrove forest and the rich biodiversity under threat
    23. 23. Affected villages in Tamil Nadu (2002) Pondicherry Citizens Action Network – February 2007
    24. 24. 1st August ‘02 … a week later A house and trees… …turned into rubble and lost. Pondicherry Citizens Action Network – February 2007 Parking space for traditional fishing crafts….is lost.
    25. 25. Pondicherry Citizens Action Network – February 2007 Widespread destruction Homes…. livelihoods … and nature
    26. 26. The coastal erosion is advancing at 350 m/year March 2002 Kottakupam … 3 months later! Pondicherry Citizens Action Network – February 2007
    27. 27. IMPACTS OF COASTAL EROSION <ul><li>Destruction and loss of property </li></ul><ul><li>Water salinity and scarcity </li></ul><ul><li>Loss of livelihoods for fishermen </li></ul><ul><li>Degradation of fertile agricultural land </li></ul><ul><li>Exposes the town to cyclones </li></ul>Pondicherry Citizens Action Network – February 2007
    28. 28. A small commercial harbour is silently destroying us. It’s a man made tsunami
    29. 29. Studies by experts conclude that A harbour should be avoided in Puducherry According to Dr. S.M. Ramasamy there are certain faults along this coast of Puducherry indicating chains of tectonically induced environmental problems such as ground water logging, coastal zone flooding, storm surges and harbour sedimentation. Pondicherry Citizens Action Network – February 2007
    30. 30. A New Threat! if the existing harbour is so devastating… imagine a port 10 times bigger? Pondicherry Citizens Action Network – February 2007
    31. 31. Construction of a new Deep Water Port ten times bigger Pondicherry Citizens Action Network – February 2007 Existing harbour Proposed Deep Water Port. Potential erosion
    32. 32. Alarming facts about the project… <ul><li>Proposed without any assessment of sand movement </li></ul><ul><li>9 million cu.m of sand will be used to reclaim land </li></ul><ul><li>(this is essential to rehabilitate Pondy beach) </li></ul><ul><li>Mitigation measures responsibility of Govt not Developers </li></ul><ul><li>Financially not viable (according to developer’s report) </li></ul>Pondicherry Citizens Action Network – February 2007
    33. 33. Does Puducherry need a Deep Water Port that will <ul><li>Flood the town </li></ul><ul><li>Create water scarcity </li></ul><ul><li>Cause traffic congestion </li></ul><ul><li>Cause health hazard due to pollution </li></ul><ul><li>Dump garbage into the sea </li></ul><ul><li>..And ruin the quality of life of its citizens </li></ul>? Pondicherry Citizens Action Network – February 2007
    34. 34. This beautiful natural spot can become a recreational space for the 6.5 lakhs residents of Puducherry instead of benefitting only a few
    35. 35. Puducherry,earlier known as Vedapuri, is unique and special. With its rich cultural and spiritual heritage it must become a city of knowledge and the model for a development that is holistic, sustainable and eco-friendly. Pondicherry Citizens Action Network – February 2007

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