Flood Alleviation Programme

Flood Alleviation Programme

Flood alleviation schemes which will mitigate 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 year.  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, namely the 1% Annual Exceedance Probability or 1 in 100 year event.

Next Steps

It is now proposed to proceed to a Part 8 Consultation process in Q2 of 2023 having incorporated comments into the preferred option, where practicable.
    
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 our Consultants have analysed the significant flooding events that have occurred and have carried out extensive modelling to predict likely future flood events.
An initial Options Report has been presented to DLR and this is currently being reviewed.

Next Steps

Review of the Options Report
Engagement with key stakeholders directly affected by the proposed Options
Wider Public Engagement Day which will outline the options proposed by the Consultants.

Project Specific Website: www.csfrs.ie