A section of the seawall is marked on an historic Admiralty chart, extending for some 700m along the water's edge at Redwick. The wall is cut by the road that leads from Redwick to the mud flats.

Sources include:
Historic Admiralty Chart 1183-A2, RCAHMW Digital Collections sourced from the UK Hydriographic Office and first published in 1839

Maritime Officer, RCAHMW, January 2010.