Coastal Management - Holderness
- Created by: Jenny Jones
- Created on: 16-04-14 18:11
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- Holderness
- rate of coastal erosion = 1-20 per year
- Causes
- Physical
- rock type- boulder clays, easily eroded
- narrow beaches- less protection from waves
- prevailing wind- north easterly wind, hits coast directly
- waves have long fetch so very powerful
- Human
- coastal defences- groyne at mappleton. beaches are narrower, easily eroded
- Physical
- Impacts
- loss of land, buildings and roads
- property prices have fallen sharply
- accessibility to settlements reduced because roads are at risk to falling into sea
- businesses at risk, people may lose their jobs
- gas terminal at Eastington at risk- 25m from cliff edge
- 80,000 sp-m of farmland lost per year- huge effect on farmers livelihoods
- loss of coastal habitats and scenery
- slumping of material onto beach
- Responses
- groynes at mappleton
- rock armour at mappleton
- sea walls and wooden groynes at hornsea and Bridlington
- Long term prospects
- groynes cause narrow beaches -> increases erosion -> increased coastal retreat
- reduced eroded material -> increases risk of flooding in Humber estuary
- Spurn head at risk of being eroded away
- bays forming between 1protected areas -> more expensive sea defences
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