Flood Alleviation Programme

Flood Alleviation Programme

Flood alleviation schemes will alleviate flood risk associated with the surface water network of streams, rivers and culverts

Deansgrange Stream Flood Alleviation Project
Dún Laoghaire Rathdown County Council, along with project partners, the OPW, have appointed the joint venture team of JBA Consulting and JB Barry & Partners to assess, develop and design a viable, cost-effective and sustainable flood relief scheme which aims to minimise risk to the community, social amenity, environment and landscape character.

Public Engagement

We want to thank you for the engagement and feedback provided during both Public Engagement Events, undertaken in September-October 2020 and December January 2022/3 when the preferred Option was presented. The comments, photos and videos received have proved useful tools in the options development. The consultation also helps the project team to better understand the impact of the proposals on the local communities and how we can potentially maximise the scheme benefits.

In tandem with this study an advance project, the Kilbogget Park Flood Storage Project, is completed and working very well having held back significant volumes of water during intense rain events over the past 2 years.  This project will provide a significant element of flood relief to many properties downstream, particularlyin the Bayview/Seafield environs.  More work is required to provide the required level of flood protection to all properties, namely the 1% Annual Exceedance Probability or 1 in 100 year event.

Next Steps

A Part 8 Consultation process has been completed and it is proposed to bring a report to the council Meeting on the 11th of December.
    
Project Specific Website: www.deansgrangefrs.ie

Carrickmines Shanganagh Rivers Flood Alleviation Project

The Carrickmines/Shanganagh catchment stretches from Sandyford and Leopardstown in the West to Loughlinstown in the East, where it discharges into the Irish Sea close to the Irish Water wastewater Treatment Plant
There is a history of flooding in the catchment.   Flooding from the Shanganagh River has occurred on Commons Road on several dates from 1980 to 2011 and also in the Loughlinstown environs. The recently completed 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 www.floodinfo.ie).
Appointment of JBA Consulting and JB Barry & Partners
Dún Laoghaire Rathdown County Council (DLRCC), along with project partners the OPW, have appointed the joint venture team of JBA Consulting and JB Barry & Partners to assess, develop and design a viable, cost-effective and sustainable flood relief scheme which aims to minimise risk to the community, social amenity, environment and landscape character.

With information gathered to date the Consultants have analysed the significant flooding events that have occurred, carried out extensive modelling to examine future flood events and have now looked at a range of options to alleviate the predicted flooding. A draft Options Report has been presented to DLR and it is proposed to hold a public engagement event in mid-December 2023 to seek the views of stakeholders on the preferred Option.

Next Steps

Engagement with key stakeholders directly affected by the proposed Options Wider Public Engagement Day (on December 13th) which will outline the preferred option proposed by the Consultants.

Project Specific Website: www.csfrs.ie