Deansgrange Flood Relief Scheme, Dublin


    The Deansgrange Stream catchment is approximately 6km long and 1.5km wide and stretches from Deansgrange in the north-west to Loughlinstown in the south-east. The river is culverted in two different sections, under the Kilbogget Park landfill site and under the Seafield and Bayview Estates. Several areas of the lower catchment, including Seafield Court, Killiney Hill Road and Achill Road, suffer from regular flooding. The Eastern Catchment Flood Risk Assessment and Management (CFRAM) Study Area concluded that a flood relief scheme would be viable and effective for the community (can be viewed online at

    Improvements to the flood defence regime are required to mitigate the impact from high flows and flooding in the catchment. Dun Laoghaire Rathdown County Council, along with project partners the OPW, have appointed us and JBA Consulting to review and develop the Eastern CFRAM study and design an appropriate viable, cost-effective and sustainable flood relief scheme which aims to minimise risk to human beings, the existing community, social amenity, environment and landscape character.

    Further information on the progress of this scheme can be found at

    Client: Dún Laoghaire-Rathdown County Council / Office of Public Works
    Location: Co. Dublin
    Value: Undisclosed

    We are working on this project in partnership with JBA Consulting.