STAGE 2 STRATEGIC FLOOD RISK ASSESSMENT FOR THE DRAFT LONGFORD COUNTY DEVELOPMENT PLAN 2015-2021 for: Longford County Council Great Water Street Longford County Longford by: CAAS Ltd. 2nd Floor, The Courtyard 25 Great Strand Street Dublin 1 JANUARY 2014 Includes Ordnance Survey Ireland data reproduced under OSi Licence Number 2010/29/CCMA/LongfordCountyCouncil. Unauthorised Reproduction infringes Ordnance Survey Ireland and Government of Ireland Copyright. © Ordnance Survey Ireland Stage 2 SFRA for the Draft Longford County Development Plan 2015-2021 Table of Contents List of Figures ........................................................................................................ ii List of Tables .......................................................................................................... v Section 1 Introduction and Policy Background ................................................. 1 1.1 Introduction and Terms of Reference ............................................................................. 1 1.2 Consultation ................................................................................................................. 1 1.3 Current Conclusion ........................................................................................................ 1 1.4 Flood Risk, Context and its Relevance as an Issue to the County Development Plan .......... 2 1.5 Flood Risk Management Policy ....................................................................................... 3 1.6 Emerging Information ................................................................................................... 6 1.7 Content of the Draft County Development Plan ............................................................... 6 Section 2 Stage 1 SFRA - Flood Risk Identification ........................................... 7 2.1 Introduction.................................................................................................................. 7 2.2 Flood Risk Indicators ..................................................................................................... 7 2.3 Conclusion .................................................................................................................. 10 Section 3 Stage 2 SFRA - Initial Flood Risk Assessment ................................. 14 3.1 Introduction................................................................................................................ 14 3.2 Site Walkovers ............................................................................................................ 14 3.3 Flood Risk Indicator Information Considered ................................................................. 14 3.4 Site Walkover Findings, Adequacy of Existing Information and Delineation of Flood Zones 14 Section 4 Recommendations ........................................................................... 51 4.1 Overall Recommendation ............................................................................................. 51 4.2 Overall Integration into the Plan .................................................................................. 51 4.3 Policies/Objectives ...................................................................................................... 51 4.4 Development Management Standards and Guidelines .................................................... 54 Appendix I: Flood Risk Indicator Mapping ........................................................... 56 Appendix II: Stage 2 SFRA Site Walkover Findings for Specific Locations ........ 105 Appendix III: Summary of Related Provisions contained in the DEHLG Flood Guidelines for Indicative Flood Zones A and B ................................................... 114 CAAS for Longford County Council i Stage 2 SFRA for the Draft Longford County Development Plan 2015-2021 List of Figures Figure 2.1 Occurrence of Available Historical Flood Risk Indicators in County Longford .................... 11 Figure 2.2 Occurrence of PFRA Fluvial Areas in County Longford .................................................... 12 Figure 2.3 Occurrence of PFRA Pluvial and Groundwater Areas in County Longford ......................... 13 Figure 3.1 Abbeyshrule Indicative Flood Risk Zones (overlain on older version of the Draft Land Use Zoning) ...................................................................................................................................... 16 Figure 3.2 Abbeyshrule revised Land Use Zoning that is being placed on public display as part of the Draft Plan ................................................................................................................................... 17 Figure 3.3 Ardagh Indicative Flood Risk Zones (overlain on older version of the Draft Land Use Zoning) ...................................................................................................................................... 18 Figure 3.4 Ardagh revised Land Use Zoning that is being placed on public display as part of the Draft Plan ........................................................................................................................................... 19 Figure 3.5 Aughnacliffe Indicative Flood Risk Zones (overlain on older version of the Draft Land Use Zoning) ...................................................................................................................................... 20 Figure 3.4 Aughnacliffe revised Land Use Zoning that is being placed on public display as part of the Draft Plan ................................................................................................................................... 21 Figure 3.6 Ballinalee Indicative Flood Risk Zones (overlain on older version of the Draft Land Use Zoning) ...................................................................................................................................... 22 Figure 3.4 Ballinalee revised Land Use Zoning that is being placed on public display as part of the Draft Plan ................................................................................................................................... 23 Figure 3.7 Ballinamuck Indicative Flood Risk Zones (overlain on older version of the Draft Land Use Zoning) ...................................................................................................................................... 24 Figure 3.4 Ballinamuck revised Land Use Zoning that is being placed on public display as part of the Draft Plan ................................................................................................................................... 25 Figure 3.8 Ballymahon Indicative Flood Risk Zones (overlain on older version of the Draft Land Use Zoning) ...................................................................................................................................... 26 Figure 3.4 Ballymahon revised Land Use Zoning that is being placed on public display as part of the Draft Plan ................................................................................................................................... 27 Figure 3.9 Carrickglass Indicative Flood Risk Zones (overlain on older version of the Draft Land Use Zoning) ...................................................................................................................................... 28 Figure 3.4 Carrickglass revised Land Use Zoning that is being placed on public display as part of the Draft Plan ................................................................................................................................... 29 Figure 3.10 Clondra Indicative Flood Risk Zones (overlain on older version of the Draft Land Use Zoning) ...................................................................................................................................... 30 Figure 3.4 Clondra revised Land Use Zoning that is being placed on public display as part of the Draft Plan ........................................................................................................................................... 31 Figure 3.11 Drumlish Indicative Flood Risk Zones (overlain on older version of the Draft Land Use Zoning) ...................................................................................................................................... 32 Figure 3.4 Drumlish revised Land Use Zoning that is being placed on public display as part of the Draft Plan ................................................................................................................................... 33 Figure 3.12 Edgeworthstown Indicative Flood Risk Zones (overlain on older version of the Draft Land Use Zoning) ................................................................................................................................ 34 Figure 3.4 Edgeworthstown revised Land Use Zoning that is being placed on public display as part of the Draft Plan ............................................................................................................................. 35 Figure 3.13 Granard Indicative Flood Risk Zones (overlain on older version of the Draft Land Use Zoning) ...................................................................................................................................... 36 Figure 3.4 Granard revised Land Use Zoning that is being placed on public display as part of the Draft Plan ..........................................................................................................................................