5369935
holderness
coast (nearly
finished
- coastal
erosion
- reasons
- It had an easily eroded rock type. most of
the cliff was made of till (Or boulder clay).
it could easily be eroded and was prone to
slumping when wet
- Narrow beaches- as beaches slow the waves reducing
erosive power, narrow beaches protect the cliffs less. this
was because lamborough head stops sediment from the
north replenishing the beaches along holderness. there
was also a coastal defences trapping sediment meaning
less deposition could be carried further.
- Powerful waves- the waves were very powerful
because of the long fetch (from the Arctic ocean)
and the coast faces the dominant wind direction
(from the north east.
- It had an easily eroded rock type. most of
the cliff was made of till (Or boulder clay).
it could easily be eroded and was prone to
slumping when wet
- Impacts
- social
- property prices along the coast have fallen
sharply for those houses at risk from erosion
- around 20 villages from
Roman times have been lost
- property prices along the coast have fallen
sharply for those houses at risk from erosion
- economic
- Visitor numbers have dropped
over 30% between 1998 and 2006
- many caravan parks are at risk from erosion
such as the sea side caravan park at Ulrome
losing an average of 10 pitches a year.
- 2 million was spent at mapleton
1991 to protect the coast
- The gas terminal at eastington is at risk (only 25m from
the edge of the cliff) it accounts for 25% of british gas
supply
- 80'000m of good farmland is lost each year
having a huge effect of farmers livlihoods
- Visitor numbers have dropped
over 30% between 1998 and 2006
- enviornmental
- Some SSSI's (sites of scientific interest) are threatened -e.
lagoons near easington part of SSSI. it has a colony of over
1% of british breading population of little terns. The
lagoons are separated from the sea by a narrow strip of
sand and shingle. erosion of this would connect the lakes
to the sea and 'the lagoons' would be destroyed.
- Some SSSI's (sites of scientific interest) are threatened -e.
lagoons near easington part of SSSI. it has a colony of over
1% of british breading population of little terns. The
lagoons are separated from the sea by a narrow strip of
sand and shingle. erosion of this would connect the lakes
to the sea and 'the lagoons' would be destroyed.
- social
- reasons
- Hard engineering
- Hard
- bridlington is protected by a 4.7 km long sea
wall as well as timber groynes
- Two rock groynes and a 500m long revetment were built at
mapletown in 1991. they cost 2 million pounds to protect
and were built to protect the village and B1242 coastal road.
- There are Groynes and a sea wall at withwensea .
some rip rap was also placed in front of the wall
after it was damaged in severe storms in 1992.
- There is a concrete sea wall, timber groynes and
riprap at Hornsea that protect the village
- Gabions just south of Hornsea protect Hornsea Caravan park
- Gas terminal at eastington protected by a revetment
- Eastern side of spurn head protected by Groynes and rip rap.
- bridlington is protected by a 4.7 km long sea
wall as well as timber groynes
- successfulness
- Hard
- holderness coast is 61 km long
located from flamborough head to
spurn head. in some places e.g Great
Cowden, the rate of erosion has
been over 10m a year. the average
rate of erosion per year is 1.5
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