Clonmel Water Supply Upgrade Project
Uisce Éireann is progressing works to improve the security and resilience of the water supply in Clonmel, Co Tipperary.
The project represents a multi-million-euro investment in water infrastructure and will result in homes and businesses in Clonmel and surrounding areas being able to enjoy a safer, more secure water supply. Shareridge is delivering this project on Uisce Éireann’s behalf.
Clonmel, Co Tipperary.
What are the benefits of this project?
Once complete, this project will:
- Enhance the security and resilience of water supply for homes and businesses in the area.
- Improve the quality and reliability of the water supply area of Clonmel.
- Address ongoing operational issues that result in interruptions to the water supply and Boil Water Notices.
- Allow for Clonmel’s Poulavanogue water supply to be removed from the EPA’s Remedial Action List, which identifies “at-risk” drinking water supplies.
What is involved in this project?
This major investment to upgrade the Clonmel Water Supply will involve:
- An upgrade to the treatment facilities at Monroe Water Treatment Plant (WTP)
- The installation of 15km of new water mains
- Upgrades to Rahronan pumping station which will connect the Monroe supply to the Clonmel North Reservoir and Poulavanogue network.
The project will also provide for a more secure water supply to those currently supplied by the existing Monroe WTP from the large Clonmel North Reservoir.
Once the Monroe WTP upgrade works are complete, customers who were supplied from Poulavanogue WTP will now be supplied from Monroe WTP.
Project Map of the Clonmel Water Supply Upgrade.
Details of ongoing works:
| Location | Start Date | End Date | Planned Works | Traffic Management |
| Rathronan Cross to Clonmel North Reservoir (Giantsgrave) | 21 May 2025 | Ongoing | Pipeline installation works (mainly off-road) | Traffic management in place alongside local and pedestrian access at Rathduff Lower. |
| Cashel Road | February 2025 | Ongoing | Pipeline installation works (In coordination with Active Travel Scheme) | Traffic management will be in place alongside local and pedestrian access at Cashel Road Roundabout. |
| Fethard Road to N24 | 8th of December | 19th of December | Permanent reinstatement works. | Traffic management will be in place alongside local and pedestrian access. |
| Thomas Street & Dillon Street | 8th of December | 10th of December 7pm to 1am | Road markings. | Traffic management will be in place alongside local and pedestrian access. |
L-3279 Rathronan to Clashaniska Road Closure. Diversion route in place. Local & emergency access will be maintained.
Clonmel Water Supply Upgrade Project
What is happening next?
Over 13km of the final 15km of new watermain has now been laid with the remaining installation ongoing from Rathronan Cross to Clonmel North Reservoir (Giantsgrave). In the town centre, all pipelaying is now complete and permanent road reinstatement is substantially complete, with final road marking works taking place early next week. Reinstatement works on the Fethard Road will commence from next week with crews departing ahead of the Christmas holidays. Shareridge is delivering the works on behalf of Uisce Éireann and the overall project is expected to be completed in 2026.
To deliver the works safely and efficiently, traffic management will be required. Local and emergency traffic will always be maintained. Impacted stakeholders will be notified directly and we endeavour to keep the local community updated as this project progresses.
The works may involve some short-term water interruptions, and the project team will ensure that customers are given a minimum of 48 hours’ notice prior to any planned water interruptions. We understand that this type of work can be inconvenient and works crews will make every effort to minimise any disruption these necessary works cause.