RIVER PODDLE FLOOD ALLEVIATION SCHEME ENVIRONMENTAL IMPACT ASSESSMENT REPORT VOLUME 2 – MAIN REPORT PART II - ASSESSMENT OF ENVIRONMENTAL EFFECTS AND PROPOSED MITIGATION MEASURES (CHAPTERS 6-17) FEBRUARY 2020 River Poddle Flood Alleviation Scheme EIAR Main Report, Part II List of Contents 6 POPULATION AND HUMAN HEALTH .......................................................... 6-1 6.1 Introduction .......................................................................................... 6-1 6.2 Methodology.......................................................................................... 6-1 6.3 Existing Environment .............................................................................. 6-1 6.4 Potential Impacts ................................................................................... 6-6 6.5 Mitigation Measures ............................................................................... 6-8 6.6 Residual Impacts ................................................................................... 6-9 SOILS, GEOLOGY AND HYDROGEOLOGY ................................................... 9-1 Introduction .......................................................................................... 9-1 Statement of Authority ........................................................................... 9-1 Methodology.......................................................................................... 9-1 Existing Environmental Conditions ............................................................ 9-1 Potential Impacts ................................................................................... 9-4 Mitigation Measures ............................................................................... 9-5 Residual Impacts ................................................................................... 9-7 LANDSCAPE AND VISUAL .................................................................... 10-1 Introduction ..................................................................................... 10-1 Statement of Authority ...................................................................... 10-1 Methodology .................................................................................... 10-1 Existing Environmental Conditions – Planning Policy ............................ 10-11 Existing Environmental Conditions – Baseline ..................................... 10-20 Proposed Development .................................................................... 10-25 Mitigation/Avoidance by Design ........................................................ 10-27 Potential Effects .............................................................................. 10-27 Mitigation and Avoidance Measures ................................................... 10-46 i February 2020 EIAR Main Report, Part II River Poddle Flood Alleviation Scheme Residual Impacts ............................................................................ 10-48 ARCHAEOLOGICAL, ARCHITECTURAL AND CULTURAL HERITAGE ........ 11-1 Introduction ..................................................................................... 11-1 Methodology .................................................................................... 11-2 Existing Environment ......................................................................... 11-8 Archaeological and Historical Background ............................................. 11-9 Predicted Impacts during Construction ............................................... 11-23 Mitigation Measures ........................................................................ 11-25 Residual Impacts ............................................................................ 11-27 NOISE AND VIBRATION ...................................................................... 12-1 Introduction ..................................................................................... 12-1 Statement of Authority ...................................................................... 12-1 Methodology .................................................................................... 12-2 Existing Environment ......................................................................... 12-6 Noise Impact Assessment .................................................................. 12-7 Mitigation Measures ........................................................................ 12-20 Residual impacts ............................................................................. 12-22 AIR QUALITY AND CLIMATE ................................................................ 13-1 Introduction ..................................................................................... 13-1 Statement of Authority ...................................................................... 13-1 Methodology .................................................................................... 13-2 Existing Environment ......................................................................... 13-5 Air Quality & Dust Impact Assessment ................................................. 13-6 Mitigation Measures ........................................................................ 13-12 Residual Impacts ............................................................................ 13-15 TRAFFIC AND TRANSPORT .................................................................. 14-1 Introduction ..................................................................................... 14-1 Statement of Authority ...................................................................... 14-1 February 2020 ii River Poddle Flood Alleviation Scheme EIAR Main Report, Part II Transport Assessment Methodology..................................................... 14-2 Existing Environment ......................................................................... 14-4 Characteristics of the Proposed Development ....................................... 14-6 Likely Significant Effects .................................................................. 14-14 Mitigation Measures ........................................................................ 14-20 Residual Impacts ............................................................................ 14-22 MATERIAL ASSETS .............................................................................. 15-1 Introduction ..................................................................................... 15-1 Methodology .................................................................................... 15-1 Characteristics of the Proposed Scheme ............................................... 15-1 Existing Environment ......................................................................... 15-2 Potential Impacts .............................................................................. 15-8 Mitigation Measures ........................................................................ 15-11 Residual Impacts ............................................................................ 15-13 INTERACTIONS ................................................................................... 16-1 Introduction ..................................................................................... 16-1 Interactions Matrix ............................................................................ 16-1 Population & Human Health Interactions .............................................. 16-1 Biodiversity Interactions .................................................................... 16-2 Hydrology & Hydromorphology Interactions.......................................... 16-3 Soils, Geology and Hydrogeology Interactions ...................................... 16-3 Landscape and Visual Interactions ...................................................... 16-3 Archaeology, Cultural and Built Heritage Interactions ............................ 16-3 Noise and Vibration Interactions ......................................................... 16-3 Air Quality Interactions ...................................................................... 16-3 Traffic & Transport Interactions .......................................................... 16-4 Material Assets Interactions ............................................................... 16-4 SCHEDULE OF MITIGATION MEASURES ............................................... 17-1 iii February 2020 EIAR Main Report, Part II River Poddle Flood Alleviation Scheme Introduction ..................................................................................... 17-1 Schedule of Mitigation Measures ......................................................... 17-1 List of Tables Table 6-1: Population change by council area 2006 to 2016 ............................................................... 6-3 Table 6-2: Population Census Statistics for the Area ........................................................................... 6-4 Table 7-1: Overview of fieldwork personnel and dates ....................................................................... 7-6 Table 7-2: The six-level ecological valuation scheme - CIEEM guidelines (2016) ................................ 7-7 Table 7-3: Designated sites of relevance to the proposed development site ................................... 7-10 Table 7-4: Peak counts of birds recorded in Tymon Park in Jan – Apr 2018 ..................................... 7-23 Table 7-5: Identification of important ecological features: designated sites, habitats and flora...... 7-25 Table 7-6: Identification of