Hard engineering strategies (along rivers)
- Created by: Jenny Jones
- Created on: 07-05-14 18:01
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- Hard engineering strategies
- Dams and Reservoirs
- dams built across rivers, A reservoir is formed behind the dam
- Advantages
- reservoirs store water during periods of heavy rain, reduces risk of flooding
- water in reservoir used as drinking water and can be used to generate HEP
- Disadvantages
- dams very expensive to build. creating a reservoir can flood existing settlements
- eroded material deposited in reservoir and not along rivers natural course so farmland downstream is less fertile
- Channel Straightening
- river's course is straightened- meanders cut out by building artificial straight channels
- Advantages
- water moves out of area more quickly because it doesn't travel far- reduces risk of flooding
- Disadvantages
- flooding may happen downstream of straightened channel instead as water carried there faster and more erosion downstream because water's flowing faster
- Dams and Reservoirs
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