Kilbogget Park Flood Storage Project

Dún Laoghaire Rathdown County Council and OPW appointed Malachy Walsh & Partners as the Lead Design, where improvements to the flood defence regime were required to mitigate the impact from high flows and flooding in the Deansgrange catchment area following a number of flooding incidents.

MJS Civil Engineering as Principal contractors, brought us on board to fabricate & fit the large, galvanised metal screens contained within the structure, designed to prevent blockage by river debris and maintain a path for the water to the culvert. The structure has been clad in granite to blend better with the environment. Additional steelwork was also required, to provide a working platform for maintenance personnel, with stairs, access hatch, gates and paladin fencing. A public viewing platform was added which included designing, fabricating, and fitting the half-circle shaped railings which were sloped inwards with a timber top. These were galvanised and powdercoated. All steelwork on the project was galvanised by Galco, Dublin

The overall design integrated the designated flood storage area with the existing constructed wetlands and maintained/enhanced the landscape, plant and recreational facilities within the park whilst ensuring that the associated infrastructure does not detract from the overall amenity of the public space.

Co-ordination, co-operation and time management was vital in the construction of this project which had the river temporarily dammed and re-routed during the construction.

Thanks to excellent input from Michael Storan and Padraig Treacy in MJS Civil Engineering, Pat Parle and Mark Tighe in Malachy Walsh & Partners and Caitrín Foley and Joseph Craig in Dún Laoghaire Rathdown County Council, this project, while complex and demanding, achieved this excellent structure, built to hold back water in the stream during very heavy rainfall and allow flood waters to build up safely in the wetland area for a short period of time – several hours.

The slower release of water helps to protect properties from flooding downstream.

Having worked previously with Dún Laoghaire Rathdown County Council on small flood alleviation/flood debris screens, we were delighted to be a part of this much bigger project.

MJS Civil Engineering demanded work of the highest quality and standards and we are proud to be part of such an important environmental project.