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Client: Cork County Council

Description: A number of studies have been carried out by Malachy Walsh and Partners in relation to the coastal defences at Youghal. An initial study assessed the benefits that would accrue from measures to improve coastal protection at Youghal. A coastal study assessed the effectiveness of the existing groyne system and potential groyne based solutions to improve coastal defence. A further study evaluated other coastal defence solutions such as improvements to the existing seawall. The studies included numerical modelling of waves and sediment transport due to waves and currents, an examination of old maps and aerial photographs, an assessment of beach profile changes, evaluation of the costs and benefits (including amenity benefit) of groyne only solutions, groyne and various levels of seawall strengthening solutions to improve the coastal defences. The studies included an environmental review which established existing environmental baseline data and identified potential environmental impacts.

Following from the studies a preferred strategy to improve the coastal defences was adopted by Cork County Council. The strategy includes: the strengthening of the existing seawall; the construction of a number of timber and rock groynes; and a rock terminal groyne. Detailed design of the seawall strengthening was carried out and tender documents were prepared by Malachy Walsh & Partners for the refurbishment of part of the seawall.

Malachy Walsh and Partners recently undertook the contract administration and site supervision of refurbishment works to some 100m of seawall.


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