Holderness Case Study (coastal management)
- Created by: jess448844
- Created on: 30-10-19 15:06
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- Holderness Coast (Coastal Management)
- Soft Engineering
- = working with the natural processes to manage the coast
- eg. vegetation/stabilise cliffs, mangrove forests, beach replenishments and flood meadows
- Disadvantages
- Less effective.
- Managed retreat - erosion is slowed and certain areas will be lost.
- Not useful on a larger scale.
- Flood meadows restrict land use.
- Hard Engineering
- = Structuresusing steel, concrete and wood.
- eg. groynes, sea walls, gabions, revetments and rock armour.
- Disadvantages.
- Expensive.
- Needs regular maintenance.
- Causes erosion further down the coast.
- Why Protection is Needed
- Rate of erosion is around 1-2 meters per year.
- Soft boulder clay therefore a higher erosion rate.
- Abrasion and hydraulic action.
- Slumping and slips.
- High energy coast line.
- Lots of storms
- Small beaches
- Little Protection
- Long Shore Drift
- Suitable Management
- What is done now will not impact the future in a negative way.
- environmental - natural processes
- Social - benefits are felt by everyone.
- Economic - affordable and appropriate solutions.
- Easington
- Gas terminal needs protection.
- Provides energy to the UK.
- Granite sea walls and groynes
- Conflict
- Gas terminal needs protection.
- Mappleton
- £2 million used for coastal defences.
- Rock armour along the base of the cliff.
- 2 rock groynes.
- Cheaper to protect that build a new road.
- Holderness Coast
- Curved sea walls reflect wave energy.
- Rock armour dissipates wave energy.
- Groynes build the beach by trapping the sand.
- Protects the town of bridlington.
- Kilnesa
- Sea defences not maintained.
- Hard engineering
- Using soft engineering.
- Replanting
- Flood Meadows
- Sea defences not maintained.
- Soft Engineering
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