A MORE SUSTAINABLE APPROACH TO COASTAL PROTECTION.

REMEMBER THERE ARE 5 MAIN HARD ENGINEERING APPROACHES TO COASTAL DEFENCE

GROYNES, REVETMENTS, SEA WALLS, GABIONS, ARMOUR

PROBLEMS:- not sustainable in long term, expensive, ugly, high maintenance – can cause problems further down coast.

A more sustainable approach is one which tries to fit in with natural coastal processes, whilst trying to protect habitats.

MATCH THE STRATEGIES WITH THEIR DESCRIPTION

---BEACH NOURISHMENT-

SHORELINE VEGETATION-

MANAGED RETREAT-

SET BACKS - DUNE STABILISATION-

BUILDING HOUSES BACK FROM THE COAST PUTTING MORE MATERIAL ONTO

BEACH – (PROBLEM QUITE EXPENSIVE AND NEEDS TO BE REDONE REGULARLY)

MARRAM GRASS PLANTED, ROOTS HOLD SAND TOGETHER. THIS IS ABOUT SLOWING COASTAL

EROSION BUT NOT TRYING TO STOP IT. EVENTUALLY BUILDINGS HAVE TO BE MOVED OR THE SEA WILL DESTROY THEM. THIS IS OFTEN CHEAPER IN LONG RUN IN COMPARISON TO CONSTANT INVESTMENT

PLANTING THINGS LIKE MARSHBEDS ON SHORELINE TO HOLD BEACH SEDIMENT TOGETHER. THIS ALSO ENCOURAGES HABITATS TO DEVELOP.