COMHAIRLE CONTAE ÁTHA CLIATH THEAS
SOUTH DUBLIN COUNTY COUNCIL
MEETING OF ENVIRONMENT, PUBLIC REALM AND CLIMATE CHANGE SPC
Tuesday, February 06, 2018
HEADED ITEM NO.
Update on Flood Alleviation (including CFRAMS) and Surface Water Schemes
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 on site are now complete 2 months ahead of schedule. We have now entered the 12 month defects period.
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 expected in early September. The letter of intent and the letters to the unsuccessful tenderers have been issued. There was an objection from one of the eliminated tenderers. Dublin City Council forwarded the appeal to Engineers Ireland to make an adjudication. Engineers Ireland have upheld the decision of the Tender Assessment Board and the appointment of the consultant is now proceeding. Consultants will be appointed in early February.
In order to progress the environmental assessment for the works at Tymon Park SDCC engaged Roughan & ODonovan following a competition in December. Work on a Winter Habitiat Survey is currently progressing in Tymon Park and the results of this will feed into the Environment Assessment for the project.
Camac Flood Alleviation Scheme
The overall scheme for the Camac did not meet the OPW 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, SDCC and the OPW have met on site and walked the Camac. The OPW have drafted a brief for the appointment of Consultants to carry out the design of flood alleviation measures at these specific locations and this is currently being reviewed by SDCC and DCC.
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.
2018 SURFACE WATER MINOR WORKS PROGRAMME:
1 Surface Water Sewer Systems;
|
Location |
Project |
Update on Project |
|
Tay Lane, Rathcoole |
Flood attenuation |
Next phase. Continued from 2017 |
|
Glenmaroon
|
Localised surface water improvement – to address a Surface Water issue on Glenmaroon Road. |
In Planning. |
|
Main Street, Peamount Road, Newcastle. |
Localised surface water improvement |
Carried over from 2017 |
|
Celbridge Road
|
Surface water improvement scheme – collapsed culvert restoration. |
Works complete. |
|
Ballyowen Lane, Lucan. |
Surface water improvement scheme – to assist Public Realm where necessary to complete pitch works |
Next phase. Continued from 2017 |
|
Templeogue Village |
Initial assessment and feasibility study. |
Phase 1. Carried over from 2017 |
|
Stocking Lane, Rathfarnham. |
Culvert upgrade |
Phase 1. Carried over from 2017 |
|
Old Lucan Road near village |
Localised surface water improvement |
Multi annual scheme in conjunction with Roads |
|
Butterfield Park
|
Localised surface water improvement |
In planning. |
|
Nangor Road/Ninth Lock Road Junction, Clondalkin. |
Localised surface water improvement |
In planning. Carried over from 2017 |
|
The majority of the above schemes are at preliminary stage and are subject to detailed design and full budgetary estimates. |
|
|
2 Flood Alleviation Minor Capital Works – Rivers & Streams
|
Location |
Project |
Update on Project |
|
Camac River |
Clearing and regrading |
In planning |
|
Poddle River |
Clearing and regrading |
In planning |
|
Jobstown stream |
Regrading, dredging and cleaning. Provision of a better aesthetic area to discourage illegal dumping into the stream. |
In planning |
|
River CCTV & Telemetry |
2 sites; Camac at Toyota and Tallaght Stream at Sean Walsh Park |
In planning |
|
Rain Gauge Upgrade |
5 sites |
In planning |
|
Owendoher Stream |
Clearing and regrading |
In planning |