Severe storms led to significant damage to the revetment and adjacent seawall, notably creating voids which had the potential to further threaten the integrity of the structure. In addition, the seawall is located adjacent to residential properties, presenting a heightened risk to the public, mainly due to a potential void opening on the landward side of the structure.

Damage to the revetment caused by storms

Initial works involved breaking up the damaged revetment material into manageable sizes before removing and positioning this in front of the repair area to provide temporary protection. This allowed for the placement of rock infill within the revetment which was transported across the beach by a dumper, before an excavator was used to position the material inside the void. Following this, a series of identified voids at the base of the seawall were filled with concrete.

A new revetment toe beam was excavated in the sand and filled with concrete to provide a base on which to cast the new concrete revetment over the infill stone. The new 700mm thick concrete revetment was then cast on top of the stone infill in strips to ensure the correct angle of revetment was maintained.

Following the completion of the revetment imported rock armour was transported across the beach and placed at the toe of the revetment to form additional protection.

During the works the existing revetment was cleaned of all marine growth and all voids will filled and then sealed with a marine mortar. Concrete repairs to the upper seawall were also carried out.

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Kirkcaldy Seawall

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