Turlough flood relief measures at Ballyvelaghan, Co. Clare

Clare County Council approach to non-draining turlough at Ballyvelaghan (2018)

1) environmental-impact assessment

2) applied to An Bord Pleanála for permission for flood-relief measures

Ballyvaughan Turlough SAC

https://www.npws.ie/protected-sites/sac/000996

Clare County Council applied to An Bord Pleanála under the provisions of Section 177AE of the Planning and Development Act, 2000 (as amended) for a flood alleviation project at Mortyclogh, Co. Clare.

A Natura Impact Statement was submitted along with other documentation in support of the application

Proposal was for:

Construction of a pumping station (underground chambers (3.5m x 4m wide x 4m deep), control kiosk 2m3, concrete hardstanding 300m2, mesh fence to surround and screen planting),
• Construction of a rising main (pipe 550mm diameter x 700m long buried within a trench) between the pumping station and outlet,
• Construction of an inlet and outlet chamber at Poulnaclogh/ Mucknish Bay with overflowing weir,
• All other associated works.

Note: The NIS refers to an associated feasibility study and preliminary design report by Hydro Environmental Ltd, which is not included with the application

Bantry Flood Relief Scheme

http://www.bantryfrs.ie/

The project shall comprise up to five stages.

Stage 1: Scheme Development and Design

Assess and develop a viable, cost-effective and sustainable Scheme, to allow the design flood event along the Bantry & Mealagh Rivers and their tributaries without causing flooding of properties, in so doing protecting against flooding from pluvial, fluvial, groundwater, tidal and surge.

Carrying out a Constraints Study to identify the key environmental issues in the study area, which may be impacted upon by possible flood alleviation measures, and/or which may impose constraints on the design and viability of these measures.

Preparation of the Appropriate Assessment Screening Statement.

Public consultation, including Public Information Days. The purpose of the first Public Information Day is to gather information from the public about their experiences of flooding in the Study Area along with their thoughts on possible solutions to the flooding problem and their preferences in this regard.

Development and identification of preferred scheme, informed by:
Multi-criteria assessment of options including environmental assessments
Cost Benefit analysis for the preferred scheme


Stage 2: Planning process

Complete the necessary planning and any other statutory processes, to progress the preferred Scheme through Part 10 Planning under the Planning and Development Act 2000 or confirmation under the Arterial Drainage Act 1945.


Stage 3 – Detailed Design, Confirmation and Tender

Undertaking the detailed design of the final preferred scheme.
Confirmation of the Scheme by the Minister for Public Expenditure & Reform where relevant.
Preparation of Contract Documents and undertaking the procurement of a works contractor to construct the Scheme.


Stages 4 and 5 – Construction and Handover of the Works

A Natural Water Retentions Measure (NWRM) Feasibility Assessment will be undertaken when assessing the solutions to mitigate flooding in Bantry. Where it is feasible for NWRM to contribute to flood reduction in the Scheme Area, or to contribute to the mitigation of the environmental impacts of the Scheme, these measures will be developed as part for the Scheme.

Project area

South West Catchment Flood Risk Assessment and Management (CFRAM) Study

Further detail is available on www.floodinfo.ie

Parts of Bantry have been identified as being at risk of flooding. The areas at risk in particular follow the path of the Mill River, Alley River and Scart Stream through the town and the Mealagh River to the north of the town.

Bantry is also affect by tidal flooding with coastal areas identified as at risk. There are also problems with the poor structural condition and flow capacity of culverts in the town. One of the significant causes of flooding is high tides entering the local drainage network and causing sewer flooding as well as river flooding from the Bantry Stream and tributaries. Bantry is prone to flash flooding from the numerous small steep rivers that flow through the town.

OPW Flood Relief Schemes in Excel

There are 91 ongoing flood relief schemes, approx half have information websites (linked in Excel where available)

There are 51 completed flood relief schemes (since the first on record in 1997, Gort and Lacken in Co Galway)

The ‘completed’ file gives the total number of premises protected (it would be a load of work to pull this data from pdfs to determine for ongoing/future schemes)

Flood Relief Schemes are typically developed as follows:

  • Progress a Flood Relief Scheme – this is where OPW and the Local Authority are preparing a tender brief in order to appoint a Consultant.
  • Stage I – Scheme Development and Preliminary Design
  • Stage II – Planning Process or Public Exhibition / Confirmation
  • Stage III – Detailed Design
  • Stage IV – Implementation/Construction
  • Stage V – Handover of Works

Schemes flagged with a * are smaller schemes (<€1m) and are progressed directly by the relevant Local Authorities with full funding from the OPW

The OPW data is here https://www.floodinfo.ie/scheme-info/ but you can only sort by 25 projects at a time, so it’s not useful for any analysis

Links the 46 schemes with their own information websites

http://enniscorthyfds.ie/
http://raphoefrs.ie/
http://southgalwayfrs.ie/
http://www.coiribgocosta.ie/
http://www.kilkeefrs.ie/
http://www.kingsislandfrs.ie/
http://www.leitrimcoco.ie/eng/Services_A-Z/Flood-Man…
http://www.leitrimcoco.ie/eng/Services_A-Z/Flood-Man…
http://www.liffordfrs.ie/
http://www.poddlefas.ie/
https://adarefrs.ie/
https://athlonefas.ie/
https://carrickonshannonfrs.ie/
https://consult.mayo.ie/en/consultation/part-8-flood…
https://countydonegalfrs.ie/burnfootfrs/
https://countydonegalfrs.ie/castlefinnfrs/
https://countydonegalfrs.ie/downingsfrs/
https://countydonegalfrs.ie/glentiesfrs/
https://www.camacfas.ie/
https://www.deansgrangefrs.ie/
https://www.floodinfo.ie/ballinafrs/
https://www.floodinfo.ie/ballinasloefrs/
https://www.floodinfo.ie/ballybofey-stranorlarfrs/
https://www.floodinfo.ie/blackpoolfrs/
https://www.floodinfo.ie/buncranafrs/
https://www.floodinfo.ie/crossmolinafrs/
https://www.floodinfo.ie/dodder-phase-3-frs/
https://www.floodinfo.ie/douglasfrs/
https://www.floodinfo.ie/dundalkfrs/
https://www.floodinfo.ie/dundalkfrs/
https://www.floodinfo.ie/glashaboyfrs/
https://www.floodinfo.ie/graiguenamanagh-tinnahinchfrs/
https://www.floodinfo.ie/limerickfrs
https://www.floodinfo.ie/lowerleefrs/
https://www.floodinfo.ie/midletonfrs/
https://www.floodinfo.ie/naasfrs/
https://www.floodinfo.ie/portarlingtonfrs/
https://www.floodinfo.ie/rameltonfrs/
https://www.floodinfo.ie/shannonfrs/
https://www.floodinfo.ie/springfieldfrs/
https://www.floodinfo.ie/traleefrs/
https://www.morellfms.ie/
https://www.mountmellickfrs.ie/
https://www.opw.ie/en/templemore/
https://www.whitechurchfas.ie/
https://www.wicklow.ie/Portals/0/adam/Content/3mcPjW…

River Slaney Drainage Scheme / Enniscorthy Flood Relief Scheme (Environmental Documentation)

APPENDICES
A. SCHEME SUPPORTING INFORMATION
Appendix A1 – Exhibition Drawings
Appendix A2 – Construction Environmental Management Plan (CEMP)

B. SCHEME ALTERNATIVES ASSESSMENT ROYAL HASKINONG (2009) AND ROD BRIDGE REVIEW REPORT

C. BIODIVERSITY
C.1_HABITAT REPORT MARCH 2018
C.2_OAK WOODLAND MARCH 2018
C.3_WET WOODLAND MARCH 2018
C.4_MACROPHYTE REPORT MARCH 2018
C.5_MAMMAL SURVEY REPORT MARCH 2018
C.6_BAT REPORT MARCH 2018
C.7_BIRD REPORT MARCH 2018
C.8_AQUATIC ECOLOGY MARCH 2018
C.9 ECOFACT SLANEY FPM SURVEY (15-6-16)
C.10_E MOORKENS SLANEY RIVER FPM SITE VISIT AND CONDITION
ASSESSMENT NOVEMBER 2016

C.11_TECHNICAL APPENDIX, MUSSELS
C.12_ENNISCORTHY BACK CHANNEL MARCH 2018
C.13_TRANSLOCATION FPM PROTOCOL_SENSITIVE _INFORMATION
C.14_FISH TRANSLOCATION MARCH 2018
C.15 APPENDIX FIGURES MARCH 2018

D. HYDROLOGY AND GEOMORPHOLOGY

E. GROUND INVESTIGATIONS INTERPRETIVE REPORT

F. LANDSCAPE AND VISUAL PHOTOMONTAGES

G. ARCHAEOLOGY AND ARCHITECTURAL HERITAGE

H. AIR QUALITY AND CLIMATE

APPENDICES

Appendix A – AA Screening report (Scott Cawley, 2018)

Appendix B – Interim Construction Environmental Management Plan (Mott MacDonald, 2018)

Appendix C – Back Channel Restoration (Ecofact, March 2018)

Appendix D – Macrophyte Survey (Denyer Ecology, July 2017)

Appendix E – Oak Woodland Survey (Denyer Ecology, July 2017)

Appendix F – Wet Woodland Survey (Denyer Ecology, July 2017)

Appendix G – Mammal Survey Report (Scott Cawley, January 2016)

Appendix H – Bird Baseline Surveys (Eleanor Mayes, March 2018)

Appendix I – Aquatic Ecology Survey (Ecofact, March 2018)

Appendix J – Freshwater Pearl Mussel Survey (Ecofact, September 2016)

Appendix K – Aquatic Molluscs: Margaritifera margaritifera (Freshwater Pearl Mussel FPM) and Anodonta anatina (Duck Mussel) (Dr E. Moorkens)

Appendix L – A survey of habitat condition for the freshwater pearl mussel Margaritifera margaritifera in the River Slaney at Enniscorthy, County Wexford (Dr E. Moorkens, November 2016)

Appendix M – Hydrology and Geomorphology Study (Mott MacDonald, 2018)

Appendix N – Alluvial Woodland Condition Assessment and Future Prospects (Denyer Ecology, March 2018)

Appendix O – A protocol for the translocation of the freshwater pearl mussel Margaritifera margaritifera in the River Slaney at Enniscorthy, County Wexford (Dr E. Moorkens, August 2017)

Appendix P – An assessment of hydrological, hydrogeological and geomorphological conditions for the Freshwater Pearl Mussel Margaritifera margaritifera for the potential translocation of mussels from Enniscorthy: Part 1 High Flow Survey (Dr E. Moorkens, February 2018)

Appendix Q – An assessment of hydrological, hydrogeological and geomorphological conditions for the Freshwater Pearl Mussel Margaritifera margaritifera for the potential translocation of mussels from Enniscorthy: Part 2 Low Flow Survey (Dr E. Moorkens, July 2018)

Appendix R – Fish Translocation/Salvage Outline Methodology (Ecofact, April 2018)

AIE: Natural Water Retention Measures (NWRM) Working Group

AIE 2-2-2022

The Natural Water Retention Measures (NWRM) Working Group was established to advise the National Technical Implementation Group of the Water Framework Directive on the use of NWRM through Nature Based Catchment Management Solution [NbCMS]. The working group met three times in 2019 and once in 2020. The working group produced two reports, ‘Overview and Recommendations for Use in Ireland’ and ‘Evidence and Opportunities for use in Ireland’. These reports were both finalised in 2020 and presented to the National Technical Implementation Group for their consideration

Please provide the Minutes of the Committee and any documents circulated.

Please provide copies of ‘Overview and Recommendations for Use in Ireland’ and ‘Evidence and Opportunities for use in Ireland’.

Options and Recommendations for the Economic Appraisal of Capital Flood Relief Schemes

The OPW considers that improvements could be made to its economic assessment of flood relief schemes. This includes that the widest possible range/scope of relevant benefits of such schemes are captured and represented in the business case and that the OPW uses the most appropriate economic appraisal to inform progressing investment in these schemes

The following project objective was agreed with the Steering Group.


To inform the OPW’s €1bn planned investment in approximately 150 flood relief schemes
over the National Development Programme 2018-2027, prepare a report detailing the
recommendations and options for economic appraisal with reference to the Public Spending
Code for appraising government investment in flood relief schemes.

Economic Appraisal of Flood Relief Schemes Implementation Plan

The purpose of this report is to set out an outline plan for the implementation of the recommendations set out in the Mott MacDonald authored report Options and Recommendations for the Economic Appraisal of Capital Flood Relief Schemes

Review of the OPW Capital Flood Relief Scheme Project Appraisal