The road “improvements” that took place in the 1960’s meant the demolition of Archcliffe Gate and the surrounding ditch to be filled in. Fortunately the galleries that were inside the gateway were left untouched, as were some of the surrounding walls. These walls would have housed defensive features such as gunrooms and the necessary means of ventilation to allow smoke created by the guns to escape.

Close to the galleries and guardroom are the rooms that were used as cells.