Raw Dykes

Raw Dykes is a Roman earthwork and scheduled monument in Leicester. The monument consists of two parallel banks up to 20 metres apart, with an excavated channel running between them. A stretch 110 metres long survives, but originally the earthwork was at least 550 metres in length.The official entry in the schedule of monuments maintained by the Department of Culture, Media and Sport states that the remains are those of a Roman aqueduct, stating that "the narrow cut within the centre of the ditch represented the main water channel and was designed to increase the flow of water by concentrating it within a constricted space".