A trial trench evaluation was carried out at Priory Stadium, Sudbury, in advance of residential development. 19 trenches were excavated, representing approximately 4% of the site.
The evaluation revealed a sequence of sediments deposited by the River Stour and at least one former N-S watercourse that remained open until the 19th century. In places layers of cultivation soil and former topsoil sealed the sediments, demonstrating agricultural use of the site in the post-medieval period. Generally the site was covered by at least 1.0m of modern dumping associated with the construction and use of the Priory Stadium in the late 19th- and 20th centuries.