Growth and Development Programme - Maynooth Transfer Pipeline Project

Uisce Éireann is delivering a project to upgrade the wastewater network to enable growth and development in Maynooth and Kilcock.

The Maynooth Transfer Pipeline Project involves the construction of a pipeline between the existing Maynooth Wastewater Pump Station and Leixlip Wastewater Treatment Plant. Upgrade works are also required to the Maynooth Wastewater Pump Station. 

This project is being delivered to support existing and future developments within the community.  Construction of the new pipeline along with the required upgrade works to the Maynooth Wastewater Pump Station will improve the capacity of the existing wastewater network in the area, improving performance and reducing demands on the current network.

Delivered through Uisce Éireann's national Growth and Development Programme, the project represents a €24 million investment, and will provide the required wastewater network capacity to enable the development of an additional 11,500 housing units in Maynooth and Kilcock.

The works are being carried out on behalf of Uisce Éireann by Coffey Construction and are expected to be completed in 2027.

• Construction of 9 kilometres of new sewer pipeline from Maynooth Wastewater Pump Station at Dunboyne Road, to Confey in Leixlip.

• Upgrades to the existing Maynooth Wastewater Pump Station.

The benefits of these wastewater network works include: 

• Supporting social and economic development – This project will facilitate social and economic growth, including planned residential development.

• Improving the wastewater network – This project will upgrade the wastewater network, increasing the capacity to deliver reliable, sustainable high-quality wastewater services for the community.

A road closure has been granted by Kildare County Council to facilitate the continuation of pipelaying, as follows:

L1015 Kellystown, from the junction with L1014 Kellystown to the junction with R149

From Tuesday 13 January to Friday 13 March, 2026
 

For general traffic on the L1015:

• Westbound traffic:
  The closure begins at the L1015 / R149 junction. Traffic will divert left onto the R149 (Captain’s Hill) and continue to Leixlip Main Street. From there, follow Main Street to the L1014, then turn right and continue until you rejoin the L1015 beyond the closure.
• Eastbound traffic:
  The closure begins at the L1015 / L1014 junction at Kellystown. Traffic will divert onto the L1014, then turn left onto the R148. Continue on the R148 to the R149 (Captain’s Hill), turn left, and follow this route to rejoin the L1015 beyond the closure.

For HGVs:

• HGVs travelling east:
  HGVs will be diverted via the R157, following the signed route through Castlefarm, Summerhill and Bennetstown roundabouts. Traffic will then continue via the M3 junctions, R147 and R156 before joining the R149 (Clonee Road), which will bring drivers to the end of the road closure.
• HGVs travelling west:
  Westbound HGVs will follow the R149 before diverting onto the R156 and onwards to the R147 and R157. The diversion continues via Bennetstown, Summerhill and Castlefarm roundabouts, before rejoining the route beyond the closure

All diversion routes will be clearly signposted, as agreed with the Council and An Garda Síochána. Emergency access and restricted local access will be maintained at all times.

Standard working hours are 7.30AM to 6PM, Monday to Friday.

Works may involve planned interruptions to water supply. Customers will be notified in advance of any planned water outages.

Uisce Éireann understands that this type of work can be inconvenient and works crews will make every effort to minimise any disruption these necessary works cause. We would like to thank the community for their ongoing patience and cooperation as we work to deliver this essential project, 
 

Coffey Construction’s Community Liaison Officer can be contacted at 086 191 4043 with any queries or concerns relating the project works.