Colchester, The Grist Mill, Spring Lane North (ECC 4646, TL 97303 25718) monitoring of shallow ground works for a small extension at the site of a former mill that was largely destroyed in the late 19th century and adjacent to the River Colne at Lexden Bridge revealed 19th century brick foundations for a small extension to the mill. As the foundations have been piled these earlier wall lines have been left in situ.