Flood Engineering Flashcards
1
Q
List all the hard engineering strategies
A
Dams £5-25 billion
Channelisation £500million
Levees £ 8000 per metre
2
Q
List all the soft engineering strategies
A
Afforestation - £30'000 per hectare Floodplain zoning - free Flood warning system - £1.3million Retention ponds - 25000 each Do nothing - free
3
Q
Water supply in the UK :
What are the areas of water stress?
A
Where the amount of water in an area is limiting development and population
4
Q
What are areas of water deficit?
A
The amount of water required to replace that which has been lost ( seen in plants as they wilt in summer)
5
Q
What is water surplus?
A
A place where there is more than enough water
6
Q
What is flood frequency?
A
It’s how often a flood occurs and its depends on strategies in place to avoid it- soft and hard engineering
