1) explain how each method works … 2) give good points & bad points of each strategy 3) give...
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1) Explain how each method works …2) give good points & bad points of each strategy3) Give viewpoints of different groups of people4) Consider whether the strategy is sustainable
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Hard options tend to be more expensive and have a greater impact on the river and the surrounding landscape. They involve engineering (building) a solution to the flood problem.
Building dams e.g. Talybont Reservoir
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Building flood walls / bunds – permanent defences
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Altering the channel – widening, deepening, straightening - lining in concrete. River Valency Boscastle 2007.
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A channel can be built to divert some of the flood water away from the main channel (like a road by-pass)
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Individual householders can flood proof their home for about £20,000.
Businesses use ‘Floodguard’ too
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Soft options are more ecologically sensitive.
e.g. encourage landowners in Upper Catchment to plant more trees
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Restore blanket bogs on moorlands – remove any farmer’s drains
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Allow floodplains to stay natural – prevent building on floodplains.