Hengistbury Head
Long groynes
Beach nourishment
Groynes were constructed between 1937 and 1939 in Poole and Christchurch
Gabion cages
Rock groynes
Effects
Conflicts
Why protect it?
Around 1 million visitors to Hengistbury head annually
The headland geology- the rock type is very soft- easily eroded
Waves are strong in this area due to direction of prevailing wind-, longshore drift removes material easily
Since 70s been a method of adding material to beach
Isle of Wight use sand dredge
Lose 10% of sand from beach
Acts as a barrier to high tides or storm surges
200m walls of gabion along it
Cages take out power of waves and impact of erosion is no as serve
215 out into the sea and are in poor condition and need repairing
Reinforced with rock armour
It is so successful that never reached base of cliff
Without long groynes, a lot of beach material would be washed away and start to erode again within a year
Repair project will take place from 2021-2031 and cost 33 million
The groynes will be raised in this project to help protect with sea levels rising
The groynes start at the beginning of Hengistbury head and goes along Mudeford spit and 17 are found here
It lasts longer than wood and prevents longshore drift occurring on the beach
ity has been stable for around 2000 years
Beach huts can remain in place
Christchurch Town is protected
The natural habitats remain stable
The beaches are protecting area from erosion thanks to the groynes
The area still attracts visitors ( 1 million a year) which is a great income for locals
Isle of Wight sand dredging can cause more erosion
There is still conflict in the rest of areas
Some areas are eroding rapidly
Some people are not happy with areas falling into the sea