Excavations were undertaken by members of the Colchester Archaeological Group under the auspices of the Colchester Excavation Committee and directed by P.R. Holbert. The object of the excavation was to recover details of the town ditch. On completion of work on the inner lip of the ditch, a small section of masonry belonging to Bastion No.3 was identified and included in the investigation. Mechanical excavation on the ditch consisted of a trench 40 feet long and 10 feet wide at a distance of 2 feet from the western wall. The base of the excavated ditch was waterlogged. Work on the bastion was concentrated on the most important features of the eastern half and the point where the western end joins the Roman wall.<1>