The Dorchester Aqueduct, located to the north-west of Dorchester (Durnovaria) in Dorset, is arguably the most famous and well-examined Roman watercourse in Britain. The aqueduct has been intermittently investigated over the course of the last 100 years, but most extensively during the 1990s. The upper stretches of the aqueduct and its source have, however, eluded archaeologists, with multiple routes and water sources being suggested. A new programme of geophysical and topographic survey, combined with targeted investigation together with a reappraisal of the excavations from the 1990s, has provided additional evidence for the route of the aqueduct, extending its course for a further two kilometres to Notton on the River Frome.

Reccopolis was a new city built in Visigothic Spain in the late 6th c. CE. Even rarer than this example of an ex novo urban foundation in the post-Roman West is the fact that the city was equipped with a brand-new aqueduct. The aqueduct has, until now, only been partially studied, but in this paper we update and re-assess the original, preliminary results. We consider the city's whole water cycle, including usage and drainage, employing new engineering calculations and GIS analyses. The results show that the aqueduct was an integral part of the city. Finally, we set our conclusions within their wider context, looking not only at the roles of aqueducts in the ideal of a city at this time, but also at urban water culture in the Late Antique West.

Fresh water came from a variety of sources, streams and springs as well as aqueducts. Much of the Roman law on fresh water concerns its supply, regulating rights to use it with a variety of legal institutions from public and private law (e.g. ownership, servitudes, interdicts). The study of fresh water has usually followed the legal categories, segregating the public water supply from water that was private property, and consequently segregating different types of evidence. In this paper varied evidence is analysed using the ‘bundle’ approach, an analytical framework from legal scholarship on rights in the environment, in which water rights are not monolithic but are represented by component rights, including rights of access, withdrawal, management, exclusion and alienation. Analysing component rights in fresh water reveals significant continuities in the Romans' regulation of it and the impact of this regulation. Although there was no centralized water administration in the early Empire, Romans took a systematic approach to regulating fresh water based on consistent working principles and policy priorities.