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Where is the Holderness Coast located?
East Yorkshire
NE England
What type of geology makes up the Holderness Coast?
Soft clay
Why does this coast erode quickly?
It is unconsolidated, soft, and easily broken down
What kind of waves are there?
Destructive waves
What is the main erosion process at Holderness?
Hydraulic action, supported by abrasion
What is longshore drift doing at Holderness?
Transporting sediment southwards along the coast.
How fast is the Holderness Coast eroding?
On average 1–2 metres per year, but up to 10–20 metres during storms.
Why is erosion so rapid at Holderness?
Soft geology, destructive waves, strong longshore drift removing sediment
How many homes at risk?
30–50 properties
How much land lost per year?
2-3 hectares.
What road is under threat of coastal erosion?
B1242 coastal road
What’s the cost of defences and how much does it protect?
Mappleton defences cost around £2 million
small section (1.5 km of coast)