Flood Management Flashcards
Resevoirs in the UK
The dam traps water which builds up behind it, forming a reservoir
- can produce electricity and attract tourists
- very expensive
- settlements and habitats are flooded
Embankments with gabions in the UK
Raising the banks of a river means that it can hold more water
- cheap with one of cost
- looks unnatural
- increases water speed
The Tees barrage in the UK
An artificial barrier across a river with large gates
- created jobs and leisure
- visual pollution
- very expensive
Meander cutoffs in the UK
Straightening the river which speeds up the water
- can reduce flood risk
- river more navigable
- increase flood risk downstream
- disturbs natural look of the river
Flood plain zoning in the UK
Allowing only certain land uses on the floodplain reducing the risk of flooding
- no cost and free + saves money
- less insurance claims
- not always possible
Flood warning systems in the UK
Environment agency monitors rivers and issues warnings
- possessions can be saved
- flash floods may happen to quickly for it to be effective
Dredging in the UK
Dredging rivers makes it deeper so it can hold more water
- more water can be held
- have to dredge frequently
Embankments and Sluice Gates in Bangladesh
Used to reduce river flow and river bank erosion
- cheap and easy to install
- regular regime and control flooding
- damage will be greater because of suddenness
Flood action plan
Flood predictions in Bangladesh
Provides real time monitoring and has early warning lead time of 2 days
- doesn’t change environment
- property can still be damaged
FFWS
Flood shelters in Bangladesh
5000 shelters were built in Bangladesh to provide a place of safety
- easy and cheap to build
- can be crowed and doesn’t protest property
Dams in Bangladesh
Part of the flood action plan Holds back monsoon rainwater in reservoirs - can be used to generate power - expensive - flooding displaces people
