Greater Dublin Drainage

Find out about the most Frequently Asked Questions on the project

Welcome to Greater Dublin Drainage

Greater Dublin Drainage (GDD) is a project to develop a new regional wastewater treatment facility for greater Dublin.

This project is needed in order to meet projected demand for wastewater treatment and to facilitate the continued social and economic growth of greater Dublin (including Dublin and parts of Kildare, Meath and Wicklow).

A sites assessment and route selection process has identified the preferred project solution as:

an underground orbital sewer from Blanchardstown to Clonshaugh and two new pumping stations;
a new wastewater treatment facility at Clonshaugh;
an outfall pipe from the wastewater treatment facility discharging to the Irish Sea.

Irish Water is now progressing the environmental studies required to prepare a planning application for the GDD project.

It is anticipated that an application for planning consent will be made to the independent planning authority, An Bord Pleanála, in 2018.

Click here for more information on the GDD project.

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