Motorists are advised of road closure as works progress on €24m Maynooth Transfer Pipeline
Construction milestone reached with over 50% of pipeline now in place
Information below is relevant until further updates are provided here or on our Supply and Service Updates section
Uisce Éireann is reminding road users of an upcoming closure at the L1015 Kellystown Road, Leixlip, as part of essential works to safely deliver the Maynooth Transfer Pipeline project.
The road closure will be in place at L1015 Kellystown, from the junction with the L1014 Kellystown to the junction with the R149, from Tuesday 13 January to Friday 13 March 2026, to facilitate the continuation of essential pipelaying works. Further temporary road closures are anticipated later this year to facilitate the completion of pipelaying works. Advance notice will be provided to road users and local communities ahead of any additional traffic management arrangements.
Construction on the Maynooth Transfer Pipeline continues to make strong progress. To date, approximately 4.5km of the new pipeline have been installed, marking an important milestone on this significant infrastructure project.
Speaking about the works, Uisce Éireann’s Ciaran Ryan said:
“This project represents a major investment in essential wastewater infrastructure for Maynooth and Kilcock, enabling future growth and much-needed new housing. While road closures are unavoidable to safely deliver works of this scale, every effort is being made to minimise disruption. We’re delighted to see continued progress on site, with over half of the pipeline now installed, and we thank local residents and road users for their patience and cooperation.”
Clearly signposted diversion routes will be in place during the L1015 closure for general traffic and HGVs, with emergency and local access maintained throughout the works.
The Maynooth Transfer Pipeline involves the construction of a new 9km wastewater pipeline between the existing Maynooth Wastewater Pump Station and Leixlip Wastewater Treatment Plant, along with upgrades to the Maynooth Wastewater Pump Station. Delivered as part of Uisce Éireann’s Growth and Development Programme, the project will provide the additional wastewater capacity required to support the delivery of up to 11,500 new homes.
Works are being carried out on behalf of Uisce Éireann by Coffey Construction and are expected to be completed in 2027.
Uisce Éireann is responsible for delivering public drinking water and wastewater services for the people of Ireland. We are committed to enabling communities to thrive by continuously upgrading and developing critical infrastructure to support sustainable growth and development, providing safe drinking water, and enhancing the environment. To find out more visit the webpage.
Previous Updates
Uisce Éireann is advising road users of an upcoming road closure at the L1014 Kellystown as part of essential works on the Maynooth Transfer Pipeline Project.
To facilitate the safe delivery of pipelaying works, the L1014 will be closed from its junction with the L5050 at Catherinstown to the L1015 junction at Kellystown, from Monday, 10 November to Saturday, 06 December 2025. Diversionary routes will be clearly signposted with emergency and local access maintained throughout the closure period.
Commenting on the works, Uisce Éireann’s Ciaran Ryan said: “We understand that road closures can be disruptive, and we thank the public in advance for their patience and cooperation while we deliver these essential works. This project will bring long-term benefits for the community, supporting housing delivery and economic growth.”
Delivered under Uisce Éireann’s national Growth and Development Programme, the Maynooth Transfer Pipeline represents a €24 million investment to deliver a new wastewater pipeline between Maynooth Wastewater Pump Station and Leixlip Wastewater Treatment Plant, along with upgrades to the existing Maynooth Wastewater Pump Station. The works are being delivered on behalf of Uisce Éireann by Coffey Construction.
Once complete, the project will create capacity for an additional 11,500 housing units in Maynooth and Kilcock and improve the performance of the existing wastewater network, ensuring reliable and sustainable wastewater services for the community. For more information, please visit the Growth and Development Programme page.
Uisce Éireann is responsible for delivering public drinking water and wastewater services for the people of Ireland. We are committed to enabling communities to thrive by continuously upgrading and developing critical infrastructure to support sustainable growth and development, providing safe drinking water, and enhancing the environment. To find out more visit the homepage.
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