IAC carried out all archaeological works associated with the Suir River (Clonmel North and East) Drainage Scheme over the course of eight months. The project involved architectural surveys of bridge structures, underwater assessment, archaeological testing, archaeological excavation and monitoring of ground works. Ministerial Consent was required for works within the town due to its designation as a medieval town.

A detailed architectural report on the bridges to be impacted was carried out in tandem with a laser survey of the bridges and other structures (See Built Heritage section).

Archaeological excavations and architectural survey on Suir Island revealed the foundations of a number of structures which represent mill buildings and a tannery dating to the late 18th century and early 19th century respectively.

Testing undertaken on Sarsfield Street revealed one feature of archaeological interest; a stone culvert. Excavation at Old Quay identified relatively sterile riverine gravels and silts underlying the remains of cellar walls which appear to represent a cotton mill/ warehouse. All groundworks within the wider aspects of the scheme were monitored however nothing of archaeological significance was identified.