Coast Protection

• Mitigate


  To protect and prevent, reducing the risk
• Adaptation


  Accept risk and change behaviour
• 4 approaches to coastal management depending on land value

  Advance the line-> add new protection

  Hold the line-> continue to protect

  Strategic realignment-> gradually remove defence, don't repair- too expensive to carry on

  No active intervention-> do nothing
• Hard engineering strategies


  Sea wall, groynes, rock armour/rip rap, gabions, revetment
• Soft engineering strategies


  Beach nourishment, dune regeneration, manage retreat
• cost-benefit analysis


  a study that compares the costs and benefits to coastal strategies, whether or not they would be effective
• Environmental impact assessment


  Assess the effects any strategy will have on an area

  -beautiful areas

  -tourist dependence
• feasibility study


  are plan suitable for the local geology or coastal processes
• Shoreline Management Plan (SMP)


  to decide what is the most appropriate scheme for the particular sediment cell
• Integrated Coastal Zone Management (ICZM)


  Environmentally sustainable, economically fair, socially responsible and culturally sensitive. A means of managing the whole coastal area.
• Hembsy- Great Yarmouth council vs Environmental Agency


  EA-> say council is to blame and they only protect economic valuable areas- want to use managed realignment

  Council-> say they don't have the money to protect the area
• Cuckmere restoration project SOS (save our shores)


  -conflict between letting the river meander naturally (environmental agency) vs protecting the coast houses (house owners)

  -current defences need repairing

  -want to raise £200,000 from crowdfunds
• Amenity


  Desirable or useful feature or facility of a building or place
• Bournemouth


  -> economic asset

  -> 100s of groneys, £200,000 each

  -> in 1960s beach was replenished
• Barton on Sea


  ->sediment starved, due to groynes in Bournemouth

  ->at high tide there is no beach

  ->rotational slumping due to geology
• Positive environmental impacts


  -management and conservation

  -cuckmere haven
• Negative environ impacts


  -management inhibits longshore drift

  -Bournemouth> Barton on sea

  -Mappleton> Cowden

  -Accidental> Newhaven Haboir Arm on Seaford beach