Topic Summaries

Management strategies to protect coastlines

IGCSE > Geography > Pearson IGCSE > IGCSE Geography Topic Summaries > Management strategies for floods > Management strategies to protect coastlines
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Weather hazards and atmospheric circulation

Hot desert ecosystems

Cold environment ecosystems

Glacial landscapes

Glacial landform processes

Energy supply

  Hard engineering management strategies
Benefits Costs
Dams and reservoirs

Provide hydroelectric power of water through turbines

Attracts tourists

Extremely expensive (e.g. Kilder Dam cost £167 million)

Settlements and habitats flooded
Straightening Can hold more water

Speeding rivers creates flooding downstream

High maintenance due to dredging
Embankements

Increases capacity, reducing flood risk

Creates walkways

Eyesore/looks artificial

Leads to more serious flooding if embankment fails

Expensive to construct
Flood relief channels

Removes excess water from rivers to reduce flooding in towns.

Opportunities for recreation (e.g. fishing, walking)

Expensive to construct

Habitats disturbed

If water levels rise, relief channels can flood

  Soft engineering management strategies
Benefits Costs
Flood warning and preparations People have time to protect property

Need for monitoring equipment and science expertise

Does not prevent flooding

Some may not receive warnings
Flood plain zoning

Reduces additional impermeable surface coverage

Less damage, so fewer insurance claims

Restricts economic development in the area

House shortages if land is not used
River restoration Reduced flood risk

Expensive

Time-consuming

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