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SUBJECT: Attn: Visitor – Coastal Erosion and Flood Risk Solution Debate.
Dear Visitor
You may be interested in the output from a recent meeting held with coastal stakeholders in Happisburgh, where the shore is currently receding at up to 12 metres a year.
Attention was drawn principally to community-based revegetation of shorelines which has been applied successfully in New Zealand to every type of coastal terrain similar to those found in the UK and subject to similar erosive forces.
An additional rationale for a UK pilot demonstration was presented in terms of providing proof-of-concept for the establishment of a new, UK-led green global economy which would provide sustainable growth, whilst restoring the environment and natural resource base.
cost-effective and lasting coastal defences.
Coastal Erosion Meeting Output of Proposed Bio-barrier Solution To Coastal Erosion, Drought and Flooding
the PDF can be downloaded or viewed here: http://bit.ly/erosionmeeting
The report contains links to the full presentations that were made to 70 stakeholders at the Happisburgh meeting, references to the documented methods, offer of support and evidenced arguments for obtaining permission to conduct a pilot demonstration of the methods.
In New Zealand the Government has produced DIY Coastal Planting Guides which show applicability to a complete range of coastlines similar to our own. New Zealand has a climate similar to the UK and is subject to storms equal to those on the East coast. Yet vegetation is working well to counteract coastal erosion.
http://www.arc.govt.nz/albany/index.cfm?AB0AB754-14C2-3D2D-B9E8-0489233AE87C
The Important Role of Trees in Combating Coastal Erosion, Wind and Salt Spray – a New Zealand Case Study
• In the NZ example use of trees to combat effects of coastal erosion, whether due to human factors, wind storms or waves has been able to both fix the sites and create a valuable commercial resource
• Natural processes have been mimicked above the shore-line to hold new sand drifts and provide shelter for more valuable lands and infrastructure. • Once drift of new sand of the beaches was stopped inland sites were stabilised with marram grass and yellow tree lupin, before a commercial crop of planted forest was established.
http://www.fao.org/forestry/11283-0f0bb329900ba7bdfd3d31af07f337f85.pdf
Barton Highcliffe in Dorset was once a rapidly eroding 35 metre cliff much the same as Naish Farm, which remains unprotected. Barton Highcliffe has not eroded in 25 years, yet Naish Farm which is on the same cliff exhibits predictable erosion.
A combination of stainless steel gabions to protect the toe of a sloped cliff plus re-vegetation and drainage to prevent slumping can deliver instant,

A cliff slope must be at an angle that can disperse wave action. So must the gabions, here is an image of vertically placed gabions. Picture these gabions laying on an angle against the sloping cliff.
Angles steeper than 45 degrees will cause gabions to fall forward where slumping takes place.
A gentleman at the meeting who witnessed the 1953 floods first-hand is convinced that this would have provided sound protection against the incoming waves. Each wave descending back down the slope would have opposed the next wave. Vegetation roots entwined in the rocks and debris in the gabions would afford even greater strength and durability, and trees would further sap wave energy.
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