Project Introduction

The Greater Dublin Drainage initiative aims to provide strategic drainage infrastructure that the Greater Dublin Area (GDA) requires for its continuing development.

What’s Happening Now?

The Project Team is currently undertaking studies towards preparing an Environmental Impact Statement (EIS) and Natura Impact Statement (NIS) for the Preferred Site Option, which will be submitted as part of the application for planning permission to An Bord Pleanála in 2018. The Board is the competent authority that will assess and determine the outcome of the planning application.

What happens next?

2014 – 2017 Environmental Studies, EIS

Irish Water is progressing all of the licence applications and environmental studies required to prepare the planning application for GDD.

The designation of the Rockabill to Dalkey Island cSAC means that additional environmental surveys of the marine environment are required so that any potential impact on the site can be comprehensively assessed.

Completion of the additional environmental surveys will enable Irish Water to prepare an EIS that comprehensively assesses whether the project will have any impact on the environment.

Planning Stage: 2018

The planning application, including an Environmental Impact Statement (EIS) and Natura Impact Statement (NIS), will be submitted to An Bord Pleanála in 2018.
This will be followed by a statutory phase of public consultation run by An Bord Pleanála.

Design & Procurement: 2019 – 2020 approximately

Subject to the planning permission being granted, the GDD team will then hold a procurement process to appoint a team to design, build and operate the project. This stage will take approximately 18 months to 2 years and will require detailed design, tender processes, funding agreements and contract signing.

Construction: 2021 – 2024

Construction is estimated to take approximately three years and will begin, at the earliest, in 2021.  The new plant should therefore be ready for operation when it is required, in line with the Dublin region’s need for additional wastewater treatment capacity as identified in the Greater Dublin Strategic Drainage Study (GDSDS) of 2005.

GDD is needed to Future Proof Dublin

The Greater Dublin Drainage project is vital for Dublin
• to safeguard public health
• to improve and protect the environment and
• to facilitate employment, social progress & economic growth in the wider Dublin Region.

In fact, one of the key elements of infrastructure needed to facilitate jobs and other developments like schools, hospitals and housing, is to increase the wider Dublin region’s wastewater treatment capacity.

From extensive examination over many years we know that we will not have enough drainage and wastewater treatment facilities in the future if we do not do something now and so the Greater Dublin Drainage project is needed. We cannot ignore our urgent need for more wastewater treatment capacity. Doing nothing is not an option.

ProjectNeedWheelThe project is also necessary to meet the Water Framework Directive (WFD) requirements and other relevant EU Directives and National Regulations related to water quality.

Currently, the lack of wastewater treatment capacity in certain parts of the GDA is placing constraints on development. Without Greater Dublin Drainage, future development may be seriously curtailed and, the potential for developing essential resources and facilities, such as schools, hospitals, industry, businesses and homes, will be severely restricted throughout the Greater Dublin Area – a scenario which is unthinkable for a capital region.