Sandbanks

• who is it managed by

  -Poole harbour comissioners

  -Two bays shoreline management plan

  -Poole harbour borough council

  -Environmental agencies
• how and why have rock groynes been used

  -to maintain a deep and wide beach

  -minimises movement of sediment along the beach of Sanbanks by longshore drift and restrict sediment from entering the harbour and absorb wave energy

  -without erosion rates would be 1.6m a year
• how is beach replenishment used

  -offshore sand is dredged and sprayed onto the beach (£20/m3)

  -rainbowing is much cheaper, sediment is dumped offshore rather than sprayed onto the beach (£3/m3)

  -overall 3.5 million m3 of sand has been added to sandbanks
• why is management needed

  -Residential properties in high demand - many luxury apartments over 2 mil and lots of high value commercial properties reasons for management-Beach is a major tourist attraction - blue flag for water quality-Provides protection and shelter from waves for Poole harbour (water sports and yacht storage)-Longshore drift of beach sediment could cause harbour entrance to become shallow - used by cross-channel ferries-Climate change - sea levels rise by 0.6m in 100yrs will cause a flooding and peninsula breach with will result in 18 million in damage in 20 year