Coffey and Uisce Éireann Irish Water have won the Innovation in Construction Award (Company Turnover €20m-€200m) at the Irish Construction Excellence Awards for the Enfield Wastewater Treatment Plant project.
The award recognises the successful delivery of Sludge Drying Reed Bed (SDRB) technology, an innovative nature-based solution that replaces energy-intensive mechanical sludge treatment with a process driven by percolation, evapotranspiration and microbial mineralisation.

The benefits are significant:
· Up to 98% reduction in sludge volume
· Elimination of chemical dosing and mechanical dewatering
· Removal of more than 155 HGV movements annually
· Reduced operational and environmental impact
A key factor in the project’s success was the willingness to challenge conventional approaches. Early feasibility assessment, detailed evaluation of treatment options and strong collaboration between Coffey, Uisce Éireann and our specialist partners helped deliver a solution that is both practical and sustainable.


Congratulations to Project Manager David Rynne and the wider Coffey team who delivered the project from design through to commissioning.
Congratulations also to AM Consulting Engineers on receiving the Engineering Design Excellence Award for the Enfield WWTP Upgrade, recognising the quality of design and technical expertise that underpinned the project.



This award highlights the role that innovative, nature-based solutions can play in delivering more sustainable wastewater infrastructure for the future.
To learn more about the Enfield Wastewater Treatment Plant project and the wider programme of works Coffey is delivering on behalf of Uisce Éireann, get in touch with our team at info@coffeygroup.com. We’d be happy to discuss how nature-based and innovative treatment solutions can help deliver sustainable infrastructure outcomes.