Coastal Flooding Projects

Printer-friendly version

 

EIS Document for Proposed South Campshire Flood Protection Project

South Campshire Flood Protection Project - Volume 1 of 4: Non Technical Summary June 2011

South Campshire Flood Protection Project - Volume 2 of 4: Environmental Impact Statement June 2011

South Campshire Flood Protection Project - Volume 3 of 4: Drawings June 2011

South Campshire Flood Protection Project - Volume 4 of 4: Technical Appendices 1.0 to 6.0 June 2011

South Campshire Flood Protection Project - Volume 4 of 4: Technical Appendices 7.0 to 17.0 June 2011

South Campshires Flood Protection Project

Update December 2017

Following recent extreme flood events and predictions of sea level rise due to climate change, a review of the capacity of the existing coastal flood defences to provide protection for urban areas was carried out in Dublin City. This identified the south city as being at significant risk, establishing the need for new defences to be constructed to the South Campshires. The Campshires are the areas located between the quays and nearby roads. The extent of these new defences required to protect the South Campshires flood cell was established as being from Butt Bridge to a point just east of Samuel Beckett Bridge and returning across Sir John Rogerson’s Quay at Cardiff Lane.

The flood cell contains vibrant business activity, retail, tourism and densely populated residential areas. The extent of flooding damage to infrastructure and properties both private and commercial can be severe, particularly with sea water flooding. This potential risk is considerable in the South Campshire flood cell, particularly due to the concentration of prominent national and international businesses, whom, if disrupted, would experience substantial costs.

Dublin City Council applied to an Bord Pleanála for Planning Approval to construct the South Campshire Flood Defences on 12th July 2011 in accordance with Section 175 of the Planning & Development Act 2000. The Application was accompanied by an Environmental Impact Statement and followed wide ranging consultation. Full details of the Project were made available during the statutory period of public consultation. An Bord Pleanála approved the proposal, subject to certain conditions, on 18th May 2012.

Dublin City Council in partnership with the Office of Public Works initiated a design process to address the flood risk. A design was adopted to provide a new flood system comprising of new reinforced concrete walls and flood gates, circa 1.1km in length from Georges Quay to Sir John Rogerson’s Quay. The design also incorporated elements beyond the flood defence including architectural elements to maintain and enhance the character of both the historical and contemporary aspects of this civic amenity. This has resulted in a decorative staggered flood wall which uses high quality finishes such as polished concrete and granite to stay in keeping with the surroundings, the introduction of a new two way cycle track, new paving and plantings throughout the scheme, road and junction upgrades, utility upgrades, protection to heritage assets and the creation of a new bespoke civic space at George’s Quay.

The Campshires are historically significant. 61 Cultural Heritage Assets were identified in the detailed preconstruction surveys. All architectural features were closely monitored by Shaffrey Associates, AECOM Ltd and the OPW Heritage Section.

Secondary benefits of the Scheme include:

Improved Public Spaces

The entire length of the scheme benefited from new sections of architecturally designed paving and planting, enhancing the general amenity of the area.

George’s Quay

The entire riverside footpath at Georges Quay has been transformed into a new civic space, capturing the value of the unique and historic location.

Cycling

The project provides a new two-way raised cycle track from the Matt Talbot Bridge to Sir John Rogerson’s Quay. Two Dublin bikes stations were also refurbished and increased in size for public use.

Carriageway

The carriage around Lombard Street was also upgraded for pedestrians, cyclists and motorists to improve safety and travel though the area by the thousands of daily commuters.

Work on the project commenced in November 2014 with a three-year programme. This has been achieved with only minor works, mainly aesthetic in nature required to complete the project. 

In total, circa 3,000 homes and over 400 businesses are now flood protected up to the 1,000 year flood protection level.




Clontarf Promenade Development and Flood Defence Project

Update 4th March 2013

Since the decision was made on 5th. December 2011 not to proceed with the proposed Clontarf Flood Defence Scheme, Dublin City Council’s Environment & Engineering Department has been working with the Clontarf Residents Association and Clontarf Business Association.

Arising from these discussions, a workshop was held on 23rd. October 2012, attended by these Groups and by DCC and facilitated by an agreed Independent Facilitator. An Agreed Report was produced by the Facilitator and this will be placed on the websites of Dublin City Council and the Clontarf Residents and Business Associations shortly.

In relation to next steps, it was agreed at the Workshop that a small working group representing a multi-disciplinary team from DCC, together with the local residents and business groups, would be put in place to examine what options were available that would adequately address the coastal flood risk, while being also acceptable to the local interest groups. This was set out in the following agreed statement:

“Dublin City Council, The Clontarf Residents Association (CRA) and Clontarf Business Association (CBA) thank Mr. George Ryan, independent chair for completing his report on a joint workshop and intend to set up a joint working group to explore options for a Clontarf Promenade Development and Flood Defence Project based on the recommendations of the workshop” The first meeting of this Joint Working Group was held on 21st February 2013 and further meetings are planned.

Dollymount Promenade and Flood Protection Project

The DFPP is part of the S2S Project which was included as an objective of the current Development Plans for Dublin City Council, and Dun Laoghaire Rathdown County Council and has also been included in the Dublin Docklands Development Authority’s Masterplan and the Dublin Transportation Office’s Platform for Change. The completion of S2S is also a policy within the Governments’ Cycle Policy Framework 2009.

The overriding design parameter of the project is the provision of a promenade, cycleway and flood defence.  Coastal Flood Protection measures have also been included as an integral part of the design of the Dollymount Promenade & Flood Protection Project.

This project is currently in the detailed design stage. The Environmental Impact Statement (EIS) was submitted in June 2009 to An Bord Pleanála for Planning Approval. Subject to funding, the project will commence in the summer of 2010.

The design life for the proposed promenade will be 120 years. However, for the design of coastal protection structures a national design standard of a return period of 200 years should be adopted for the design. The extreme high water level (based on Dublin Port) for a return period of 200 years is predicted at a level of +3.13mOD (Malin) for a base year of 2005. According to Dublin Coastal Flood Protection Plan (DCFPP) climate change / sea level rise recommendations, an annual sea level rise of 4.15mm/year should be included in all future designs for flood defence or other structures. This includes an allowance of 0.3mm/year for land subsidence.
Indicative proposals of such defences have been included on the preliminary design drawings.

 

Sandymount Coastal Flood Defence Scheme

Sandymount Coastal Flood Defence Scheme currently consists of two phases. Phase 1 relates to the promenade wall from Gilford Ave to St. Alban’s Park. Phase 2 relates to the seawall between Gilford Ave and Seafort Ave.
 
Phase 1 consists of raising the existing wall located at the back of footpath by up to 360mm and the installation of floodgates in the vehicular and pedestrian accesses along the promenade. It involves removal of one pedestrian and one vehicular entrance and reducing the size of some of the other openings. Phase 1 will be entering a planning process in the coming months and commencing construction in 2017.
 
Phase 2 is currently at preliminary design stage with coastal defence options being reviewed. Extensive Environmental Impact Assessments will have to be carried out due to Dublin Bay labeled a Special Area of Conservation. It is at least 3-4 years from construction.
 
Flood defences have already been constructed opposite Marine Drive with the permanent closure of a pedestrian opening beside Merrion Gates.

DCC Presentation on Sandymount Coastal Flood Defence Scheme - Phase 1 given at the Sandymount Hotel on July 21st 2016.

 

For more information

Gerard O'Connell - Project Leader, Ph: 01 222 4302
E-mail: gerry.oconnell@dublincity.ie

Alan O' Regan - Admin.Support, Ph: 01 222 4804
E-mail: alan.oregan@dublincity.ie

Regional Projects & Emergency Management Section,
Floor 4, 68-70 Marrowbone Lane, Dublin 8.  

Feedback