Hard Engineering - Coasts

GROYNES + RIP RAP!!!

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How do groynes build up the amount of sand on a beach?
Allowing deposition to occur on the protected side of the groyne
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What are the purpose of groynes?
To stop material being moved along the beach by long shore drift
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What to gabion groynes look like?
large steel mesh cages filled with rocks
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What do wooden groynes look like?
wooden fences
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What is the expected lifespan of a gabion groyne?
20-25 years
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what is the lifespan of a wooden groyne?
20-30 years
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What examples of rock are often used in rip-rap?
Granite + Basalt
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Other cards in this set

Card 2

Front

What are the purpose of groynes?

Back

To stop material being moved along the beach by long shore drift

Card 3

Front

What to gabion groynes look like?

Back

Preview of the front of card 3

Card 4

Front

What do wooden groynes look like?

Back

Preview of the front of card 4

Card 5

Front

What is the expected lifespan of a gabion groyne?

Back

Preview of the front of card 5
View more cards

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