The 14th Century Scheduled and Grade II listed Town Wall is a coastal defence protecting 230 properties from flooding and 12 properties from coastal erosion. The wall was increasingly being overtopped and was at risk of failure. We were appointed to reinstate and rebuild three 40m long insitu concrete groyne structures and 180m of insitu concrete toe protection to the wall structure. To address the issue of overtopping a new wall with box culvert was constructed to drain the overtopped water. The area between the Town Wall and new set back wall was utilised as a pedestrian footpath. During times of flood risk, the flood gates at either end are closed to provide adequate storage. Historic fill was excavated by archaeologists and used to clad the new reinforced concrete wall to ensure it remained in keeping with the original wall. The culvert has been designed with capacity for a 1:100 year scenario, vastly reducing flood risk.
