During extensive rescue excavations undertaken across Dover’s Town centre by Kent Archaeological Rescue Unit, substantial remains of the Classis Britannica fort were uncovered and recorded. Excavations in 1973 on the Warehouse South site, revealed a number of chalk block drains cutting metalled road surfaces. Drains B69 and B71 were traced for about 1m running north-south across the centre of the site, both were gutter like drains cut from a single large chalk block. (location accurate to the nearest 2m based on available information).