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Cuckmere Pathfinder Group Options Impact Study COASTAL PROCESSES REVIEW Public Meeting Alfriston 5 th April 2011

Cuckmere Pathfinder Group Options Impact Study COASTAL PROCESSES REVIEW Public Meeting Alfriston 5 th April 2011. 1. The Coastal Review Panel. Technical Reviewers Alan Brampton HR Wallingford Uwe Dornbusch Environment Agency (formerly Sussex Univ)

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Cuckmere Pathfinder Group Options Impact Study COASTAL PROCESSES REVIEW Public Meeting Alfriston 5 th April 2011

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  1. Cuckmere Pathfinder Group Options Impact Study COASTAL PROCESSES REVIEW Public Meeting Alfriston 5th April 2011 1

  2. The Coastal Review Panel Technical Reviewers Alan Brampton HR Wallingford Uwe Dornbusch Environment Agency (formerly Sussex Univ) Callum Firth University of Brighton Co-ordinator Richard Young RYE Consultancy 2

  3. The Coastal Workshop (21st March 2011) Technical Reviewers Alan Brampton HR Wallingford Uwe Dornbusch Environment Agency (formerly Sussex Univ) Callum Firth University of Brighton Chairman Richard Young RYE Consultancy + Andy Arnold East Sussex County Council Scott Ferguson Capita Symonds 3

  4. West Beach East Beach Coastguard Cottages East Cliff Mouth West Cliff The Cuckmere Estuary 4

  5. Shoreline changes – 1874 to 1997 5

  6. Position of mouth – 1783 to 1958 6

  7. Canalisation of estuary 7

  8. The processes at work now 8

  9. The key conclusions Existing conditions • Limited input of shingle (if any) • Infilling of channel; flood risk to people upstream • Vulnerability of West Beach • Need for re-cycling Holding the line (keeping the existing flood banks) • Increasing need for re-cycling as sea levels rise • Increasing vulnerability of West Beach as well Realignment (losing the banks, managed or unmanaged) • Reduced (possibly eliminated) need for re-cycling • Greater vulnerability of West Beach as a result • Possible movement of mouth as structures deteriorate West Beach revetment • Protect valley edge (if necessary) rather than beach • Allow beach to re-align naturally 9

  10. Any questions ? 10

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