Hard engineering strategies (along coasts)
- Created by: Jenny Jones
- Created on: 07-05-14 19:15
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- Hard engineering strategies
- Sea wall
- concrete/rock barrier placed at top of beach/foot of cliffs
- has a curved face to reflect waves back into sea
- Advantages
- often has walkway for people to walk along
- works at stopping sea
- Disadvantages
- very expensive and high maintenance costs
- can be unnatural to look at
- Rock armour
- piles of large boulder dumped at foot of cliff
- rocks absorb energy of waves protecting cliff
- Advantages
- fairly easy and cheap to maintain
- often used for fishing and can provide interest to coast
- Disadvantages
- can be obtrusive
- rocks can be expensive to transport as sometimes from abroad
- Groynes
- timber/rock structures built out to sea from coast
- trap material transported by longshore drift
- Advantages
- result in bigger beach which can improve tourism
- not too expensive
- Disadvantages
- are unnatural and rock groynes can be unnattractive
- often lead to increased rates of erosion elsewhere
- Sea wall
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