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Dunbar East Beach
Established in 2011 as a Tenants’ and Residents’ Association Supported by East Lothian Council
We now have over 60 members
WE had a lot on our minds…
…and in the first three years we got busy.
Lots of kelp
And flies And smell
but also loads of kelp…
Stench of rotting weed.. reached the High Street
Kelp dumps breeding flies that infested homes
Rotten seaweed polluting pools
Civic Week - June 2013
Lots of sand…
May 2014
+ REGULAR SUMMER BEACH CLEANS + GARDENING
Keep Scotland Beautiful – Rural Seaside Award 2012,2013,2014 Beach Management by volunteers working with ELC Landscape and Countryside
Sewage pipe exposed by storms
Fetch from North East is longest, so waves are most destructive
The North Sea has warmed 2 degrees in 50 years
East Beach 2015
2015
DSHNG start Beach Regeneration Project
2001 Beach is…disgusting, sea weed and sand loss
Major report by Babtie Group Report by Engineer, Nigel Pontee
100 year time line – based on anecdote from 1960 onwards
Babtie - Sand loss commentary…
Groyne in good condition – c 150m long
East Beach groyne – 1930s
100 year time line – based on anecdote from 1960 onwards
1992 – 1994 New sewage interceptor.
Groyne reinstated
BABTIE REPORT to ELC – 2002 Recommended Actions – One off…..
BABTIE REPORT to ELC – 2002 Recommended Actions – One off…..
Beach erosion seems to have commenced before sewage pipe works Progressive deterioration of groyne may have increased SE loss of sediment Transport driven by change in wind climate from 1960 – 1990 with concomitant
change in wave height/direction Rise in sea level may have led to increase in wave energy Accretion since 2002 could be explained by a period of reduced sea level rise
due to the 18.6 year lunar modal cycle, or decreased wave heights
Our key question… how to get our beach back again
2002 – 2009 No action taken
Beach regenerated itself
East Beach groyne – 2010
East Beach – 2010
2002 – 2009 No action taken
Beach regenerated itself
March 2010 Severe storms
No obvious sand loss
2002 – 2009 No action taken
Beach regenerated itself
March 2010 Severe storms
No obvious sand loss
Dec 2013 – Jan 2014 Wettest winter on record Severe sequential storms
Significant sand loss
East Beach groyne – Feb 2015
2015
2002 – 2009 No action taken
Beach regenerated itself
March 2010 Severe storms
No obvious sand loss
Dec 2013 – Jan 2014 Wettest winter on record Severe sequential storms
Significant sand loss
Spring 2014 Severe storms
Significant sand loss
2014 – 2015 Continuing sand loss Access not possible
from Cromwell
2016 No action taken
Beach regenerating itself???
October 2016
Regeneration Approaches Further consultant study/modelling
Too costly at a cost of £300,000
Live Trial based on best guess Possible and sensible if expectations are managed
Moderate impact of Scottish Water sewage interceptor pipe
Add defensive mattress Re-profile beach to pipe upshore to improve appearance
Pipe haunching and beach reprofiling - £60k
Key factors affecting sand loss Storm action
Uncontrollable
Offshore sand reservoir lost? Uncontrollable
Scottish Water sewage interceptor pipe
Must be retained Scour at pipe could potentially be moderated
Groyne loss
Could be reinstated but prone to short life No positive evidence that it impacts on sand accretion May create wave rebound from Cromwell Harbour
Estimated cost - £120k
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Regeneration Approaches Further consultant study/modelling
Too costly at a cost of £300,000
Live Trial based on best guess Possible and sensible if expectations are managed
Moderate impact of Scottish Water sewage interceptor pipe
Add defensive mattress Re-profile beach to pipe upshore to improve appearance
Experiment again with groyne
Reinstate but as concrete ‘biowall’
Import sand – dredge material
Estimated waste of money? LOTS
East Beach bay is too shallow to bring in a dredger
Pumping material over long distance is expensive
Recharge material suitable for a beach is likely to be expensive
Time scale uncertain Cost may be up to £1m….. And ... That good old Sea God could take it away at any time!
Regeneration Approaches Further consultant study/modelling
Too costly at a cost of £300,000
Live Trial based on best guess Possible and sensible if expectations are managed
Moderate impact of Scottish Water sewage interceptor pipe
Add defensive mattress Re-profile beach to pipe upshore to improve appearance
Experiment again with groyne
Reinstate but as concrete ‘biowall’
Import sand – dredge material Too costly at estimated £1m+ At risk of loss at first storms
Plan for the future to generate an amenity beach – rocky
or not
Regeneration Approaches
Plan for the future to generate an amenity beach – rocky or not+-
Good value at £200k
Will guide approach to sea defence design and repair
Will show that we love our beach!
Estimated build cost…..£200k - £1m???
Dunbar East Beach - 2016
Our target…the beach is back!