Coasts CS - Slapton Sands Flashcards
1
Q
Location
A
- located in the south hams district in Devon, south west England
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
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)
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
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)
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
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
8
Q
Costs
A
- only high value areas are protected
- does not leave a legacy for future generations