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

Culverts Map

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.

Map of Bantry Culverts

For more detailed maps of culvert system in Bantry see

https://irl.eu-supply.com/ctm/Supplier/PublicPurchase/162473/1/0

WFD Natural Water Retention Measures Working Group

NWRM Working Group Membership

DHPLG
Donal Grant
EPA Catchments
Jenny Deakin
Patrick Morrissey
Keiron Phillips
Emma Quinlan
EPA EMAU
Shane O’Boyle
Wayne Trodd
EPA H&GW
Conor Quinlan
OPW
Conor Galvin
Fergal Kelly
Nathy Gilligan
Mark Adamson
Wolfram Schluter
NPWS
Shane Regan
Aine O’Connor
IFI
Ciara O’Leary
Local Authorities Water Programme
Carol McCarthy
Fran Igoe
Local Authorities
Marian Healy (Offaly CoCo)
Neil Higgins (DCC)
Mary-Liz Walshe (DCC)
DAFM
Bernard Harris
Claire Casey
Forest Service
Kevin Collins
Ken Bucke
GSI
Taly Hunter-Williams
Coillte
Philip O’Dea
Bord na Mona
Enda McDonagh
Teagasc
Noel Meehan
Irish Water
Claire Coleman/Lorraine Gaston
Angela Ryan/Mairead Conlon

Terms of Reference for the Natural Water Retention Measures (NWRM) Working Group – 2019 to 2021

Background


Natural Water Retention Measures (NWRM) are multi-functional measures that aim to protect and manage water resources and address water-related challenges by restoring or maintaining ecosystems as well as natural features and characteristics of water bodies using, or replicating, natural means and processes.

They are designed to enhance and preserve the water retention capacity of aquifers, soil, river channels and their associated ecosystems. The over-all effect is primarily to slow the inflow of water to rivers and streams, and to then attenuate the flow in-stream, and reduce the impacts of downstream flood events in terms of peaks and duration.

The purpose of the Working Group will be:

The purpose of the Group is to assist and advise the EPA on issues related to NWRMs. This group will be formally established in 2019 with a view to operating through the second cycle developing approaches and into the third cycle of the Water Framework Directive in an implementation phase.


This group will therefore likely continue after 2021, according to need. Therefore, the terms of reference for this group have been drafted to reflect this.

The Agency has the responsibility of assessing significant pressures, impacting surface waters and groundwaters, and developing appropriate measures to address those identified pressures. The requirement for NWRM’s is set out in Section 7.8.2 of the current River Basin Management Plan.


This says “Natural Water Retention Measures (NWRMs) could potentially be used as mitigation measures to address water-quality problems as part of the second RBMP programmes of measures.

They could be used in a similar manner to the measures described in the Targeted Agricultural Modernisation Schemes (TAMS) and the DAFM Native Woodlands Schemes, providing multiple benefits in relation to water quality, biodiversity, climate-change adaptation, fisheries, landscape amenity objectives and flood attenuation.

NWRMs work by storing or attenuating water in the environment, allowing it to be released slowly, either as runoff to rivers and streams or by soakage to the water-table. By slowing or reducing runoff, flood flows downstream can be reduced. This is typically achieved by changing land-use practices in the catchment, so that soils have a greater capacity to store water. These land-use changes can include the rehabilitation of wetlands and the construction of new storage, such as retention ponds. In-channel works and restoring river meanders can also be used to slow the flow.”


The Working Group will support the EPA in matters related to this programme. This will ensure effective integrated catchment management and the achievement of WFD objectives.


It also may facilitate the development of synergies with other complementary work areas such as the Floods Directive. This will in turn prevent duplication of effort and maximise effectiveness.

The Working Group will:
• Advise and support the NTIG in identifying examples of best practice, assessing the
appropriateness of NWRM’s in the Irish context, reviewing research and identifying
knowledge gaps, development issues and potential pilot projects going forward.
• Collaborate with other WGs (e.g. National Hydromorphology Working Group, Department of Housing, Planning and Local Government Technical Working Group on Hydromorphology to support the Planning Guidance) as necessary.
• Report to the National Technical Implementation Group and, where appropriate, inform the Water Policy Advisory Committee, of progress.
• Interact with Common Implementation Strategy (CIS) technical activity at EU level.
• Facilitate communication among relevant stakeholders.


Actions and deliverables

-to develop a proposal for including NWRMs as part of a broader suite of mitigation measures that could contribute to the achievement of environmental objectives set out in the second RBMP
-support further research on NWRM
(a) To explore new measures; (b) To consider how existing measures can be adapted to
achieve multiple benefits in an Irish setting.

OPW to work with the EPA, local authorities and other agencies to identify, where possible, measures that will have benefits for both WFD and flood risk management objectives


Proposed Outputs of Working Group
• The national EPA NWRMs work plan for 2018 to 2021 includes the following:
o assessment of NWRMs in Irish conditions;
o assessment of research and appropriate pilot projects
o proposed approach for roll-out of NWRMs (if appropriate)
o best practice guidance for NWRMs.

Working Group Members
• Department of the Environment, Community and Local Government
• Local Authority Sector representatives
• Local Authority Waters Programme
• Inland Fisheries Ireland
• Office of Public Works

• National Parks & Wildlife Service
• Forest Service/Coillte
• GSI
• Bord na Mona
• Teagasc
• EPA Representatives (Catchments unit, Ecological Monitoring and Assessment, Hydrometric and Groundwater, Licensing)


Consultancy assistance may be procured by the EPA to assist the Working Group as necessary.

Proposed Chairperson: Jenny Deakin

Secretariat will be provided by the EPA.

Proposed Timelines: The Working Group will be temporary and will operate from March 2019 until at least December 2021. If there is need to continue the group after this date new terms of reference will be developed for the group

Note: working group met in 2019 and the reports published in 2020 were the final output from this group. No meetings since

Natural Water Retention Measures (NWRM) Evidence and Opportunities for use in Ireland

Working Group, September, 2020, Version no. 2

The Water Policy Advisory Committee (WPAC) requested that the National Technical Implementation Group (NTIG) develop a proposal for including Natural Water Retention Measures (NWRM) as part of a broader suite of mitigation measures that could contribute to the achievement of environmental objectives set out in the second River Basin Management Plan.

This report and its findings are intended to build a useful knowledge base of evidence for use of NWRM in the Irish context. It is supplementary to the report which focuses on implementation of NWRM in terms of policy and funding – Overview and Recommendations for Use in Ireland.

The objectives of report are :
• Define Natural Water Retention Measures (NWRM) and highlight the various categories of measures that exist;
• Briefly summarise the key features of each measure largely drawing on the resources listed in Section 1.1;
• Outline a methodology for selecting targeted measures for strategic prioritisation in
Ireland;
• Provide more detailed descriptions and evidence for the prioritised measures;
• The findings from this review will then feed into a complimentary report which examines policy level options for strategic implementation of such measures.

The working group met three times in 2019 and this report and its recommendations reflect the discussions and learnings from these working group meetings.

Workshop held on 02/12/2019

Controlled Activities for the Protection of Waters

“The D/HLGH proposes to ‘develop a new Controlled Activities for the Protection of Waters regime to address pressures on the physical condition of waters’ which will establish a new legislative framework that all parties including private landowners and public authorities such as the OPW will be obliged to comply with.” Feb 2022

No additional information available

IRELAND CHANGING THE SCALE OF HEAVILY MODIFIED WATERS BODIES DESIGNATED UNDER THE WATER FRAMEWORK DIRECTIVE

Multiple water sector authorities in Ireland are finalising a process to review the Heavily Modified Water Body (HMWB) designation nationally in preparation for the Water Framework Directive (WFD) third cycle of River Basin Management Plan 2022-2027.

The largest grouping of waters which have being physically modified for a specified use are the national network of arterial drainage channels, comprising 11,500km of channel.

In compliance with the WFD, there is a prescribed process for the designation of water bodies as HMWB which embeds a series of requirements. OPW and EPA working collaboratively are executing this process and are moving to a position of designating arterial drainage a portion of channels as HMWB.

Hydromorphological pressures include physical alterations to channels and banks, alterations to the flow or water level regime, and the loss of connectivity within the adjoining floodplains. These pressures can include straightening, widening, deepening and dredging channels, removal of riparian vegetation, land drainage, abstraction, traditional flood protection structures and development adjacent to surface waters. In addition, structures such as culverts, locks, weirs and dams, act as barriers to the longitudinal continuity which can impact the migration of fish and eel and impede the natural siltation process i.e. downstream movement of riverine material from coarse gravels to fine silt.

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