Lesson Objective:
To produce a detailed case study on an area of
coastal management
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Mappleton is on the Holdeness coast and the cliffs are made of boulder clay and were eroding very
quickly. The village was in danger, and several houses had been lost. However the B1242 road link was
in danger and this made it economically viable to build sea defences. An offshore bar of granite was
built at the cost of £ 2 million. This prevented erosion at Mappleton but prevented material moving
southwards.
At Great Cowden erosion was less than 2m
p.a. until the Mappleton defences were put in
place . In two years, an acre of land has been
lost, and the coast has eroded 80m.
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Sue Earle's farmhouse was knocked down in
1997 as it was at the cliff edge and was
considered dangerous. It cost the Earle's
£3000 for the privilege. They are now suing
in court.
http://www.bing.com/images/search?q=sue+earls+farm+holderness&go=&form=QBIR&qs=n&sk=#fo
cal=2923ba1a45e9a299f924ff8465d3cc22&furl=http%3A%2F%2Fwww.bbc.co.uk%2Flearningzone%2Fcli
ps%2Fimages%2Fpreviews%2Fp_geog%2Fp_geog_ec_08369_16x9.jpg
http://www.bbc.co.uk/learningzone/clips/coastlines-drastic-erosion/8434.html
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Planners are trying to find sustainable ways of managing
the coasts -to reduce the damage to the environment.
Planners are treating the whole of the coastal areas from
the shore line to several kilometres inland (holistic
approach)
Holderness area, Yorkshire is part of the EAST RIDING
ICZM plan, introduced in 2002
Set out to protect some areas form erosion and other
areas ‘do nothing’ approach taken
Local people were not happy, they argued the local social
and economic needs were being ignored
Using the maps- locate
Swanage Bay Geographically.
In the UK, local councils pay for sea defences. Some may
get money from the Government or Environment Agency if
there is a flood risk. There are 4 choices councils can
make:
1.
Hold the line use sea defences to stop erosion
EXPENSIVE
2.
Advance the line use sea defences to move the coast
further into the sea VERY EXPENSIVE
3.
Strategic Retreat gradually let the coast erode and
move people away from risks. This may involve
compensation for some people
4.
Do nothing let nature take its course.
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These choices can cause conflicts. Choices 3 and 4 will
see people loose land, homes and businesses. One
stretch of coastline may involve several choices.
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Make notes under each heading using the
information from page 82-83 Evolving Planet.
You may need to think independently about
some of the answers
◦ Location
◦ Problems in Durlston Bay
◦ Solutions in Durlston Bay (include an annotated
sketch)
◦ Problems in Swanage Bay
◦ Solutions in Swanage Bay (include
an annotated sketch)