River flood defences
- Created by: em_1999
- Created on: 09-12-15 14:21
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- River Flood Defences
- Soft Engineering - not a man made construction, designed to reduce the effects of flooding, working with natural processes.
- Negatives - people don't see it, don't feel safe. Often ineffective, Doesn't prevent flooding, therefore property and possessions are damaged.
- Positives- Works and helps improve environmental habitats. Cheaper than hard engineerin Examples - Forecasts and Warnings, Land-use management (zoning), Wetland & bank conservation, River restoration.g, more sustainable?
- Examples - Forecasts and Warnings, Land-use management (zoning), Wetland & bank conservation, River restoration.
- Hard Engineering - man made construction, designed to prevent flooding where it is built, works against natural processes.
- Negatives - Expensive to build & maintain, eyesore (unattractive), long lead time ( to build), prevents flooding only where built, pushing flood downstream.
- Positives - Often more effective than soft engineering, people feel safe, dam's can generate hydroelectric power (sustainable)
- Examples- Dams & Reservoirs, River straightening, build up of levees, diversion spillways.
- Soft Engineering - not a man made construction, designed to reduce the effects of flooding, working with natural processes.
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