COMHAIRLE CONTAE ÁTHA CLIATH THEAS
SOUTH DUBLIN COUNTY COUNCIL

MEETING OF ENVIRONMENT, PUBLIC REALM AND CLIMATE CHANGE SPC

Tuesday, May 16, 2017

HEADED ITEM NO.

 

Flood Alleviation and Surface Water Schemes

REPLY:

The update on the flood alleviation schemes and the surface water schemes is as follows:

Ballycullen Stream Flood Alleviation Scheme

Following a number of flooding events in the Castlefield area, the Drainage Section of the Council has examined the flooding problem and after reviewing various options it has concluded that a duplication of the existing culvert is the preferred solution to alleviate flooding in the area. The contract for the construction of this scheme was awarded to Clonmel Enterprises Ltd. in February. Works are currently progressing on site.

River Poddle Flood Alleviation Scheme

Following the severe flooding event of 24/25th October 2011 the OPW agreed and provided the extra funding to undertake the Catchment Flood Risk Assessment & Management Study (CFRAMS) of the Poddle. The final report on these was forwarded to the OPW who has since approved the Draft Design Brief for the River Poddle Flood Alleviation Scheme. The appointment of consultants is currently at tender stage through DCC and their framework contract. Tenders are due back at the end of May, this will be followed by tender assessment and appointment of the winning bidder in the summer. The scheme is estimated to cost in the region of €6 million.

Camac Flood Alleviation Scheme

The overall scheme for the Camac did not meet the cost benefit criteria to progress work on the river in its entirety. A steering group has been set up to consider works at specific locations on the Camac River, with a view to writing a brief for the appointment of Consultants to carry out the design of flood alleviation measures at these specific locations.

 

Whitechurch Stream Flood Alleviation Scheme

As part of the Dodder CFRAMS there is a proposed scheme for the Whitechurch Stream. The OPW have confirmed funding for the procurement of a consultant engineer for the scheme. We are currently drafting a design brief for this and will submit the brief when complete to the OPW prior to engaging the consultant through the DCC framework.

Surface Water Minor Capital Works – 2017

Provision has been for the following SW Minor Capital works and assessments to be carried out during 2017.

• Tay Lane, Rathcoole – design re-assessment underway.
• Ballynakelly ‘Garage’ at Newcastle Manor, Newcastle – Works commenced 8^th May.
• Main Street, Peamount Road, Newcastle – not commenced.
• Old Lucan Road, Lucan – tenders received, contractor appointed, scheme to commence during school summer holidays.
• Ballyowen Lane, Lucan in conjunction with Public Realm and the Roads Department – PR to carry out pitch drainage in advance.
• Templeogue Village – initial assessment and feasibility study in conjunction with the Roads Department – Liaison with Roads department ongoing.
• Stocking Lane, Rathfarnham – not commenced.
• Orchard Road, Clondalkin – Works complete.
• Nangor Road/Ninth Lock Road Junction, Clondalkin – not commenced.
• Cookstown Industrial Estate, Tallaght – Works Complete.
• Poddle Lakelands screen – under assessment, screen to be replaced.

Ongoing works

Provision has been made for ongoing maintenance works to address pluvial and other flooding issues at various locations such as the following rivers and streams;

• Camac River
• Poddle River clearing
• Jobstown Stream
• Whitechurch Stream
• Owendoher stream