Fragments of Roman pottery and food waste from the 18th century have been uncovered during work to replace Lancaster’s sewer system.
Engineers working for United Utilities had to tread carefully when working at the Damside Street site, as the area was subject to archaeological monitoring, due to the now culverted Lancaster mill race running through the site.
Enormous sewer pipes and underground storage tanks the size of Olympic swimming pools have now been carved out deep underground, in one of the biggest engineering schemes Lancaster has seen. The £18m project will enhance the city’s sewer system, in order to reduce river pollution.
The mill race, which may have had a Roman origin, was up until the 18th century an open stream, but during the expansion of the city in the mid-18th century the race was covered by an arched stone culvert.
Damside Street takes its name from the mill race weir (dam). During the work fragments of pottery, food waste from the 18th century and the occasional piece of Roman Samian Ware pottery have been retrieved. More recently engineers have been working in Damside Street laying a new sewer which the company said will be finished by the end of August.
Dawn Harrington, project manager from United Utilities said: “Now work on Damside Street is nearing completion we will turn our focus on laying a new sewer beneath North Road to the junction with Chapel Street and Rosemary Lane.”
North Road between Damside Street and Chapel Street will close for around six weeks.