2b.12b

Question 1

What is a shoreline management plan

Answer 1

• Divides the coastline into littoral cells and sub-cells
• Pulls together human and physical geography into integrated units, with devolved authority from DEFRA

Question 2

4 key decisions

Answer 2

No active intervention
Hold the line
Managed realignment
Advance the line

Question 3

What are the 4 policy decision based on

Answer 3

are based on complex judgements
(engineering feasibility, environmental sensitivity, land value, political and social reasons)

Question 4

What else is used in the decision making process

Answer 4

Cost Benefit Analysis (CBA)
and Environmental Impact Assessment (EIA)

Question 5

Expand on how policies are decided

Answer 5

• the economic value of the assets that could be protected, e.g. land
• the technical feasibility of engineering solutions: it may not be possible to ‘hold the line’ for mobile depositional features such as spits, or very unstable cliffs.
• the cultural and ecological value of land: it may be desirable to protect historic sites and areas of unusual diversity
• pressure from communities: vocal local political campaigning to get an area protected
• the social value of communities that have existed for centuries

Question 6

What is a key thing in slapton decision making

Answer 6

Key thing: can’t lose the A379
WHY?
1) Important transport and emergency access route to Dartmouth
2) Road closure would affect businesses
3) It builds tourism and creates an accessible coastline

Question 7

What is the costs of protecting slapton

Answer 7

But cost = £300,000 to align and £50,000 to maintain,
Torcross, Beesands and Middle Car Park have higher value assets to protect

Question 8

Why does slapton need protecting

Answer 8

Shingle ridge natural migrates inland at 0.3m/yr
Need to sustain shingle ridge, freshwater lagoon – but a desire to let natural processes occurs

Question 9

Describe slapton sands, devon

Answer 9

• Major barrier beach (shingle ridge)
• Protects Slapton Ley – a freshwater lagoon (SSSI) and National Nature Reserve

Question 10

Describe significant changes to slapton sands

Answer 10

Significant storms and damage in 2001 cut off access to Torcross by the A379
Followed by beach realignment
Reassessment in 2006 for 2008 SMP

Question 11

Describe no active intervention

Answer 11

• No investment in defending against flooding or erosion, whether or not coastal defences have existed previously. -
• The coast is allowed to erode landward and/or flood

Question 12

Describe strategic realignment

Answer 12

Allow the coastline to move naturally (in most cases to recede) but managing the process to direct it in certain areas.

Question 13

Describe hold the line

Answer 13

Build of maintain coastal defences so that the position of the shoreline remains the same over time.

Question 14

Describe advance the line

Answer 14

• Build new coastal defences on the seaward side of the existing coastline.
• Usually this involves land reclamation

Question 15

Describe three time frames for an SMP

Answer 15

Up to 2025
2025-55
2055+

Question 16

What are the time frames of HTL coastlines and why

Answer 16

A hold the line policy applied to an area up to 2025 may become a managed realignment policy after 2025. This is because by 2025 sea level rise is likely to have made ‘hold the line’ a much more expensive policy to apply