Coastal hard engineering

1. Hard engineering...

• Uses man made structures to defend the coastline

• Works with natural processes to defend the coastline

2. The hard engineering strategy which stops longshore drift is...

• Sea walls

• Rock armour

• Groynes

• Gabions

Cages of rocks are...

• Sea walls

• Groynes

• Gabions

• Rock Armour

4. Why do some people disagree with hard engineering?

• It prevents erosion

• It looks unnatural

• It can boost tourism

Which is the disadvantage of sea walls?

• They stop coastal erosion

• They often have a promenade for people to walk along

• They are very expensive

What sea defence is this?

• Groynes

• Sea wall

• Gabions

• Rock Armour

What sea defence is shown in the picture?

• Groynes

• Sea wall

• Rock Armour

• Gabions

Groynes can change ...

• Beach width

• Beach height

• Groyne length

What is the job of rock armour?

• Stop longshort drift

• Look pretty

• Absorb wave energy

Which hard engineering sea defences do we have at Clacton?

• Sea wall

• Groynes

• Rock Armour

• All of them