newcastle Flashcards
1
Q
1st hard engineering strategy
A
groynes
2
Q
what are groynes
A
wood thats easily eroded
3
Q
an advantage of having groynes
A
easier
cheaper
trap sand
4
Q
a disadvantage of groynes
A
have to be replaced
expensive
5
Q
are groynes unsustainable of sustainable
A
unsustainable
6
Q
2nd hard engineering
A
gabions
7
Q
what are gabions
A
a cage of rocks
8
Q
what is an advantage of gabions
A
slowly dissipate energy of wave
9
Q
disadvantage of gabions
A
need replacement
attract rodents
10
Q
3rd hard engineering strategy
A
rock armour
11
Q
an advantage of rock armour
A
most effective and protects short term
12
Q
disadv of rock armour
A
reduce sediment supply
13
Q
4th hard engineering strategy
A
sea wall
14
Q
how much did it cost to build sea wall
A
£4 mill
15
Q
how long is sea wall
A
1m
