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Flood Management Strategies. 1) Explain how each method works … 2) give good points & bad points of each strategy 3) Give viewpoints of different groups of people 4) Consider whether the strategy is sustainable. Sustainable. Planning - Land Use Zoning. Preparation - homes and businesses.
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Flood Management Strategies 1) Explain how each method works … 2) give good points & bad points of each strategy 3) Give viewpoints of different groups of people 4) Consider whether the strategy is sustainable
River Management – hard engineering e.g. Dams 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
River Management – hard engineering Building flood walls / bunds – permanent defences
River Management – hard engineering Altering the channel – widening, deepening, straightening - lining in concrete. River Valency Boscastle 2007.
Hard Engineering – flood relief channels A channel can be built to divert some of the flood water away from the main channel (like a road by-pass)
Hard Engineering – flood protection Individual householders can flood proof their home for about £20,000. Businesses use ‘Floodguard’ too
Soft Engineering - afforestation Soft options are more ecologically sensitive. e.g. encourage landowners in Upper Catchment to plant more trees
Soft Engineering – remove drains Restore blanket bogs on moorlands – remove any farmer’s drains
Soft Engineering – natural floodpains Allow floodplains to stay natural – prevent building on floodplains.