Puducherry Port Disaster. A Man-Made Made Tsunami. Coastal Erosion at Puducherry. & neighboring beaches of Tamil Nadu
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1 Puducherry Port Disaster A Man-Made Made Tsunami Coastal Erosion at Puducherry & neighboring beaches of Tamil Nadu Pondicherry Citizens Action Network February 2007
2 Once upon a time Pondicherry had a beautiful beach Pondicherry Citizens Action Network February 2007
3 Nature s gift to the citizens of Pondicherry
4 OUR BEACH Protected us from cyclones and tsunamis. Prevented our ground water from becoming saline. Supported the livelihood of fishermen. Was natural recreational spaces. And an essential part of the natural ecosystem.
5 Then a harbour was built and neglected Harbour entrance North
6 Pondy was never the same a precious gift was lost.
7 How did we lose our beach?
8 There is a natural movement of sand along the coastline 3 months a year 0.1 million cu. m of sand moves southwards. 9 months a year 0.6 million cu. m of sand moves northwards.
9 The harbour breakwater blocks the natural movement of sand. The disappearing coastline of Pondy Sand blocked by harbour seawall Seawall obstructing sand
10 This sand has accumulated south of the breakwaters Eroded coastline Harbour Blocked sand Satelite image of Puducherry coastline (Year 2000)
11 Because of this harbour, Puducherry has lost approximately 9 million cu.m of sand (about 1.5 million lorry loads)
12 How is this erosion affecting Puducherry?
13 Sand bar protected us from big waves Waves break on sand bar As sand bar has eroded the waves crash on to the road
14 Salt water is intruding into ground water Town has no protection from cyclones and tsunamis Our coastal environment is fast degrading
15 Waves spilling over seawall during cyclone
16 Le Café destroyed due to beach erosion.
17 What has been done to solve this problem?
18 An artificial seawall was built along the coast
19 Dumping rocks is only a temporary measure They sink in the soft sand. This work has to continue forever. Requires huge sums of our money. Does not protect us from big waves. Aggravates erosion and hinders regeneration of the beach. Is this sustainable?
20 More than 7 kms of Coastline has eroded in 17 years in Puducherry and Tamilnadu 7 kms Satellite image of Puducherry and Tamil Nadu coastline.
21 Coastal erosion is advancing at 350 m/year Many villages in Tamil Nadu have been affected March 2002 (3 months later) July 2002 Kottakupam, Tamil Nadu
22 Affected villages in Tamil Nadu Year 2002
23 The speed of erosion 1st August 02 a week later 8th August 02 A house and trees turned into rubble and lost. Destruction of homes. livelihoods nature
24 Widespread destruction Parking space for traditional fishing crafts. is lost.
25 Seawall ends in Pondy problem begins in Tamil Nadu Thanthirayan Kuppam Sea Wall Erosion now affecting Thantirayan Kuppam, Tamil Nadu, Villupuram Tk.
26 IMPACTS OF COASTAL EROSION Destruction and loss of property. Water scarcity / contamination. Loss of livelihoods for fishermen. Degradation of fertile agricultural land. Exposes the town to cyclones.
27 Studies by experts conclude that A harbour should be avoided in Puducherry 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, harbor sedimentation etc. construction of harbour must be avoided as the sedimentation will be a problem in the concave of Pondicherry coast. Dr. S.M. Ramasamy et al., 2001.
28 The New Threat!
29 Proposal to construct a new Deep Water Port TEN TIMES bigger Proposed harbour Existing harbour At least 10 times bigger
30 Citizens Concerns If the existing harbor is so devastating what will happen with a port 10 times bigger?
31 More concerns Project is being proposed without assessing sand movement. The 9 million cu.m of sand required for rehabilitation of the beach is being given to the developer for reclaiming land for their project. Government (citizens) will bear the cost of maintaining the eroded beach. Technical and economic viability of the project is questionable.
32 Does Puducherry need a development that will Benefit only a few Endanger our lives Pollute our town and sea Damage our envrionment Change the soul of our town
33 With its rich cultural and spiritual heritage Puducherry should be a model for an integrated development that is holistic, sustainable and eco-friendly. Pondicherry Citizens Action Network February 2007
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