The Lydden Wall is a drainage system in the Lydden Valley. It runs from the Deal/Sandwich Spit (starting near Willow Farm) running southwest to Foulmead Farm.

In 2013 the RSPB carried out a desk based assessment. The Lydden Wall was found to consist of a low earthwork adjacent to drain and forming the parish boundary between Sholden and Worth. It has been proposed that the wall could be of Roman origin but no dating evidence for this has been found. (1)

In 2022, a watching brief on the excavation of two new drainage trenches provided the first opportunity to examine the structure of the embankment archaeologically. The observation did not reveal any evidence that the feature predates the twentieth century, at least in the specific locations where the drainage ditches were placed. However, the report concludes that these results 'need not be representative of the entire course of this marshland feature.' (2)

<1> RSPB, 2013, RSPB Lydden Valley - Willow Farm Wetland Enhancement Project: Archaeological Report (Unpublished document). SKE25967.

<2> Canterbury Archaeological Trust, 2022, Land at Willow Farm, Lydden Valley marshes, Sholden, Kent, Report on archaeological watching brief (Unpublished document). SKE55179.