Coasts CS - Slapton Sands Flashcards

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1
Q

Location

A
  • located in the south hams district in Devon, south west England
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2
Q

Brief background

A

-coastline of high and low energy -> at risk of both coastal flooding and erosion with 48 properties at risk of flooding in torcross
- A379 road at risk o flooding and collapse via erosion (projected economic losses of permanent closure = $30,550,000

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3
Q

What has been done

A
  • The slapton line partnership group taking a SMP approach (covering Slapton sands coastline from Torcross in the south to strete gate) (taking consideration of the views of many stakeholders) implemented plans to:
    > Maintain existing 23m concrete sea wall at Torcross (£380,000)
    > maintain 60msheet pile at Torcross
    > upgrade and improve 60m concrete wall at Torcross (£250,000)
    > upgrade and improve rock revetment (£500,000)
    > Manage A379 through reactive realignment, moving road inwards to created a larger barrier between road and sea, creating shingle barriers
    > beach recycling/nourishment (500m of road)
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4
Q

The challenges coastal managers have faced in this area

A
  • Closure of A379 during construction will cause disruption:
    Stress on minor roads
    Local businesses
    Tourism
    Access to services
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5
Q

What makes the employed management strategies sustainable

A
  • road realignment allow road to be maintained for a further 30 years whilst effects of climate change can be managed (sea level rise)
  • after that point, it is likely road will have to become permanently closed (but not thought to occur for another 30-50 years)
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6
Q

Will the strategies cause any issues in the long term

A
  • erosion further down coast as sea walls and shingle barrier dissipate waves energy and redirect erosion
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7
Q

Benefits

A
  • stakeholders are more considered
  • relatively affordable
  • works most favourably with coastal processes and recycled material can be taken from areas of beach accretion and re-placed at specific locations whee beach levels are low
    -improves the height and with of the beach, thereby helping to protect the A379 from erosion by providing a buffer to storm activity
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8
Q

Costs

A
  • only high value areas are protected
  • does not leave a legacy for future generations
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