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12 Cards in this Set
- Front
- Back
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what are x4 hard engineering solutions to costal erosion |
sea wall riprap groynes gabions |
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what are the + of a sea wall |
prevents erosion by deflecting the wave barrier for flooding |
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what are the - of a sea wall |
strong backwash expensive |
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what is riprap |
boulders on the coast that absorb wave energy |
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what are the + of ripraps |
reduce erosion |
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what are the - of ripraps |
can be moved and eroded themself |
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what are the are groynes |
wooden fences built on the beach to stop material from being transported |
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what are the + of groynes |
create wider beaches to slow waves |
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what are the - of groynes |
create narrow beaches down coast |
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what are gabions |
rock filled cages put at the foot of the cliff |
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what are the + of gabions |
reduce erosion and absorb force of waves |
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what are the - of gabions |
ugly |
