Dear Cllr Abbott
Please accept our apologies for the delay in responding to your enquiry.
Mark Hopgood, Team Leader Technical Projects has received the following response from Steve Dunning:
The groynes at the Stray had ceased to retain sand effectively due to the missing groyne boards and piles. The accepted scientific method states that for groynes to retain sand they should be no higher than 500mm above up drift sand levels, any higher than this and they cause scour which reduces sand levels. Incidentally this is the same method that was used when the groynes were installed in the 1960's
In line with this all groynes are to have the boards and piles repaired to fill in any gaps, and are to be reduced in height to 500mm, or 2 groyne boards, above up drift sand levels. The sand levels will be monitored and, as and when the sand returns, the boards will be gradually built back up to their full height.
The excess boards are being taken to a secure storage area and any extra boards will be sourced through the EA timber procurement framework.
Funding for the work is in place as part of the Redcar Flood Alleviation Scheme and will be made available to the Council as needed
Team Leader Capital Projects Team