College Green ProjectEnvironmental Impact Assessment Report
October 2017
Dublin City Council College Green Project
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Table of Contents
EIS Non-Technical Summary
1. Introduction
2. Background to the Project and Alternatives Considered
3. Consultation
4. Proposed Project Description
5. Planning and Policy
6. Traffic and Transport
7. Air Quality and Climate
8. Noise and Vibration
9. Biodiversity
10. Archaeology, Architectural and Cultural Heritage
11. Townscape and Visual
12. Land, Soils and Water
13. Resource and Waste Management
14. Material Assets: Utilities
15. Material Assets: Land Use and Property
16. Population and Human Health
17. Risk of Major Accidents and/or Disasters
18. Interactions and Cumulative Impacts
Figure NTS.1 - Site Location
Figure NTS.2 - Proposed College Green Project
Chapter 1. Introduction
1.1 Introduction
1.2 The Proposed Project
1.3 Planning Process for the Proposed Development
1.4 EIAR Methodology
1.6 Difficulties Encountered During the Study
1.7 References
Chapter 2. Background to the Proposed Project and Alternatives Considered
2.1 Introduction
2.2 Background and Need for the Proposed Project
2.3 Project Objectives
2.4 Alternatives Considered
2.5 References
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Chapter 3. Consultation
3.1 Introduction
3.2 Public Consultation
3.3 EIAR Scoping Consultation
3.4 Further Consultation with Key Stakeholders
3.5 EIAR Statutory Consultation
3.6 References
Chapter 4. Proposed Project Description
4.1 Introduction
4.2 Site Area and Existing Environment
4.3 Neighbouring Land Uses
4.4 Description of the Proposed Project
4.5 Construction Strategy
4.6 References
Chapter 5. Planning and Policy
5.1 Introduction
5.2 National Spatial Strategy 2002-2020
5.3 Regional Planning Guidelines for the Greater Dublin Area 2010-2022
5.4 Transport Strategy for the Greater Dublin Area 2016 – 2035
5.5 Retail Strategy for the Greater Dublin Area 2008-2016
5.6 Smarter Travel – A Sustainable Transport Future (2009)
5.7 Retail Planning Guidelines for Planning Authorities 2012
5.8 Dublin City Development Plan 2016-2022
5.9 Dublin City Centre Transport Study (2016)
5.10 Dublin City Local Economic and Community Plan
5.11 The Heart of Dublin City Centre Public Realm Masterplan (June 2016)
5.12 Conclusions
5.13 References
Chapter 6. Traffic and Transportation
6.1 Introduction
6.2 Methodology
6.3 Existing Receiving Environment
6.4 Future Receiving Environment
6.5 Details of the Proposed Project
6.6 Predicted Impacts
6.7 Mitigation Measures
6.8 Residual Impacts
6.9 Difficulties Encountered
6.10 References
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Chapter 7. Air Quality and Climate Factors
7.1 Introduction
7.2 Assessment Methodology
7.3 Baseline Environment
7.4 Predicted Impacts
7.5 Mitigation Measures
7.6 Residual Impacts
7.7 Difficulties Encountered
7.8 References
Chapter 8. Noise and Vibration
8.1 Introduction
8.2 Assessment Methodology
8.3 Baseline Environment
8.4 Predicted Impacts
8.5 Mitigation Measures
8.6 Residual Impacts
8.7 Difficulties Encountered
8.8 References
Chapter 9. Biodiversity
9.1 Introduction
9.2 Assessment Methodology
9.3 Baseline Environment
9.4 Predicted Impacts
9.5 Mitigation Measures
9.6 Residual Impacts
9.7 Difficulties Encountered
9.8 References
Chapter 10. Archaeological, Architectural and Cultural Heritage
10.1 Introduction
10.2 Assessment Methodology
10.3 Impact Assessment Methodology
10.4 Baseline Environment
10.5 Predicted Impacts
10.6 Mitigation Measures
10.7 Residual Impacts
10.8 Difficulties Encountered
10.9 References
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Chapter 11. Townscape and Visual
11.1 Introduction
11.2 Assessment Methodology
11.3 Baseline Environment
11.4 Predicted Impacts
11.5 Mitigation Measures
11.6 Residual Impacts
11.7 Difficulties Encountered
11.8 References
Figures
Chapter 12. Land, Soils and Water
12.1 Introduction
12.2 Study Area
12.3 Guidelines and Sources
12.4 Assessment Methodology
12.5 Baseline Environment
12.6 Characteristics of the Proposal
12.7 Potential impact of the Proposed Project
12.8 Mitigation Measures
12.9 Residual Impacts
12.10 References
Chapter 13. Resource and Waste Management
13.1 Introduction
13.2 Assessment Methodology
13.3 Baseline Environment
13.4 Characteristics of the Proposed Project
13.5 Predicted Impacts
13.6 Mitigation Measures
13.7 Residual Impacts
13.8 Difficulties Encountered
13.9 References
Chapter 14. Material Assets: Utilities
14.1 Introduction
14.2 Assessment Methodology
14.3 Baseline Environment
14.4 Characteristics of the Proposed Project
14.5 Predicted Impacts
14.6 Mitigation Measures
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14.7 Residual Impacts
14.8 Difficulties Encountered
14.9 References
Chapter 15. Material Assets: Land Use and Property
15.1 Introduction
15.2 Assessment Methodology
15.3 Baseline Environment
15.4 Predicted Impacts
15.5 Mitigation Measures
15.6 Residual Impacts
15.7 Difficulties Encountered
15.8 References
Chapter 16. Population and Human Health
16.1 Introduction
16.2 Assessment Methodology
16.3 Baseline Environment
16.4 Predicted Impacts
16.5 Mitigation Measures
16.6 Residual Impacts
16.7 Difficulties Encountered
16.8 References
Chapter 17. Risk of Major Accidents and/or Disasters
17.1 Introduction
17.2 Assessment Methodology
17.3 The Proposed Project
17.4 Predicted Impacts
17.5 Mitigation Measures
17.6 Residual Impacts
17.7 References
Chapter 18. Cumulative Impacts and Interaction of Effects
18.1 Introduction
18.2 Assessment Methodology
18.3 Statutory Requirements
18.4 Interaction of Effects
18.5 Cumulative Impacts
18.6 References
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Chapter 19. Summary of Mitigation and Residual Impacts
19.1 Introduction
19.2 Summary of Mitigation Measures
19.3 Summary of Residual Impacts
19.4 References
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Figures
Figure 1.1 - Site location
Figure 1.2 - Extent of Main Works Area
Figure 2.1 - De Gomme’s map of Dublin 1673
Figure 4.1 - Existing Site Area Layout
Figure 4.2 - The Proposed Project
Figure 4.3- Proposed Cycle Route
Figure 4.4- Road Design Detail- Dame Street, South Great George’s Street
Figure 4.5- Road Design Detail- Dame Street
Figure 4.6- Road Design Detail- Dame Street, Trinity Street
Figure 4.7- Road Design Detail-Trinity Street
Figure 4.8- Road Design Detail-St. Andrew’s Street
Figure 4.9- Road Design Detail- St. Andrews’s Street, Church Lane
Figure 4.10-Permitted Access Routes
Figure 4.11 - Proposed Civic Plaza
Figure 5.1 - Extract from Dublin City Development Plan 2016-22: Figure 7 ‘City Retail Core
– Principal Shopping Streets’
Figure 5.2 - Extract from Dublin City Development Plan 2016-22 Map E showing location
of College Green within Conservation Area (red hatch), ACA (Green hatch) and bounded by
protected structures (red asterisk).
Figure 5.3 - Extract from The Heart of Dublin city Centre Public Realm Masterplan (June
2016) – Pedestrian Strategy Map
Figure 6.1a- Luas Cross-City layout across College Green (southern section)
Figure 6.1b- Luas Cross-City layout across College Green (northern section)
Figure 6.2 - Local Street Network
Figure 6.3- Existing Bus Routes
Figure 6.4 - Dublin City Council – HGV Routes
Figure 6.5 - Construction Access Routes
Figure 6.6 - Relevant sections of the city centre road and street network
Figure 6.7- Do-Nothing vs. Do- Minimum – Changes in Traffic Volumes - 2018
Figure 6.8- Do-Minimum vs. Do-Something – Changes in Traffic Volumes - 2018
Figure 6.9- Do-Minimum vs. Do-Something – Changes in Traffic Volumes - 2035
Figure 6.10- Access to Car Parks
Figure 6.11- Proposed Car-Park Access
Figure 6.12- Existing and Proposed Time-Limited Loading bays
Figure 6.13- Existing Access to Loading/Unloading facilities - College Green
Figure 6.14- Proposed access to loading/unloading facilities - College Green
Figure 6.15- Existing access to loading/unloading facilities- Dame Street
Figure 6.16: Proposed access to loading/unloading facilities- Dame Street
Figure 6.17- Existing access to loading/unloading facilities - Anglesea Street-Cope Street-
Fownes Street Upper
Figure 6.18- Proposed access to loading/unloading facilities-Anglesea Street – Cope Street –
Fownes Street Upper
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Figure 6.19- Existing access to loading/unloading facilities Trinity Street – Andrew Street –
Church Lane
Figure 6.20- Proposed access to loading/unloading facilities Trinity Street – Andrew Street –
Church Lane
Figure 6.21- Existing access to loading/unloading facilities – Parliament Street
Figure 6.22- Retained Access to Essex Gate
Figure 6.23- Proposed access to loading/unloading facilities – Parliament Street
Figure 6.24- Existing and proposed access to loading/unloading facilities – Essex Street
West
Figure 6.25- Existing access to loading/unloading facilities – Essex Street East
Figure 6.26: Proposed access to loading/unloading facilities – Essex Street East
Figure 6.27: Do-Minimum Scenario - Local Bus and Luas Movements
Figure 6.28: Do-Something Scenario - Proposed Bus Movements
Figure 6.29 - Future Rerouting of Buses Which Currently Pass Through College Green to
South Great Georges Street
Figure 6.30 - Future Rerouting of Buses Which Currently Pass Through College Green to
High Street
Figure 6.31 - Existing and Future Catchments for Routes Currently Passing Through College
Green, Dame Street and High Street
Figure 6.32 - Existing and Future Catchments for Routes Currently Passing Through College
Green, Dame Street and Parliament Street
Figure 6.33- Origin-Destination pairings
Figure 6.34- (do-minimum) and Figure 6.35 (do-something): Pedestrian Route Directness -
Westmoreland Street - Lower Grafton Street
Figure 6.36- (do-minimum) and Figure 6.37 (do-something): Pedestrian Route Directness -
Westmorland Street - South Great George’s Street
Figure 6.38- (do-minimum) and Figure 6.39 (do-something): Pedestrian Route Directness -
Dame Street – College Street
Figure 6.40- (do-minimum) and Figure 6.41 (do-something): Pedestrian Route Directness -
Dame Street – Grafton Street Lower
Figure 6.42- (do-minimum) and Figure 6.43 (do-something): Pedestrian Route Directness -
Grafton Street Lower - College Street
Figure 6.44- Pedestrian Delays - Routes Assessed
Figure 6.45- Do-Minimum Scenario Cycle Facilities
Figure 6.46- Proposed Cycle Facilities
Figure 7.1 - Dublin Airport Windrose 2011 – 2015
Figure 7.2 - Receptor Grid Points (Green) and Road Sources (Yellow)
Figure 7.3 - Specific Receptor Points (Yellow), Road Sources (Pink) and 3-D Building
Information (Green)
Figure 7.4 - Rolling 3-Year Annual NO2 Concentration (μg/m3) With Trendlines
Figure 7.5 - Q-Q Plot of Observed vs Modelled NO2 Concentration (μg/m3) (EFT Version
6.1)
Figure 7.6 - Q-Q Plot of Observed vs Modelled NO2 Concentration (μg/m3) (EFT Version
7.0)
Figure 7.7 - Annual Mean Modelled NO2 Concentration (μg/m3) (Year 2012) (EFT Version
7.0)
Figure 7.8 - Maximum 99.8th%ile Of Modelled NO2 Concentrations (μg/m3) (Year 2012)
(EFT Version 7.0)
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Figure 7.9 - Annual Mean Do Minimum Modelled NO2 Concentration (μg/m3) (Year 2018)
(EFT Version 7.0)
Figure 7.10 - Maximum 99.8th%ile Of Do Minimum Modelled1-Hr NO2 Concentrations
(μg/m3) (Year 2018) (EFT Version 7.0)
Figure 7.11 - Annual Mean Do Minimum Modelled PM10 Concentration (μg/m3) (Year
2018) (EFT Version 7.0)
Figure 7.12 - 24-Hr Maximum (as a 90th%ile) Do Minimum Modelled PM10 Concentration
(μg/m3) (Year 2018) (EFT Version 7.0)
Figure 7.13 - Annual Mean Modelled NO2 Concentration (μg/m3) (Year 2035) (EFT
Version 7.0)
Figure 7.14 - Maximum 99.8th%ile Of Do Minimum Modelled 1-Hr NO2 Concentrations
(μg/m3) (Year 2035) (EFT Version 7.0)
Figure 7.15 - Annual Mean Modelled NO2 Concentration (μg/m3) (Year 2018) (EFT
Version 7.0) – Do Something Scenario
Figure 7.16 - Maximum 99.8th%ile Of Modelled1-Hr NO2 Concentrations (μg/m3) (Year
2018) (EFT Version 7.0) - Do Something Scenario
Figure 7.17 - Annual Mean Do Something Modelled PM10 Concentration (μg/m3) (Year
2018) (EFT Version 7.0)
Figure 7.18 - 24-Hr Maximum (as a 90th%ile) Do Something Modelled PM10 Concentration
(μg/m3) (Year 2018) (EFT Version 7.0)
Figure 7.19 - Annual Mean Modelled NO2 Concentration (μg/m3) (Year 2035) (EFT
Version 7.0) – Do Something Scenario
Figure 7.20 - Maximum 99.8th%ile Of Modelled1-Hr NO2 Concentrations (μg/m3) (Year
2035) (EFT Version 7.0) - Do Something Scenario
Figure 8.1 - 2018 Do Minimum Scenario (Lday)
Figure 8.2 - 2018 Do Minimum Scenario (Lnight)
Figure 8.3 - 2018 Do Something Scenario (Lday)
Figure 8.4 - 2018 Do Something Scenario (Lnight)
Figure 8.5 - 2035 Do Minimum Scenario (Lday)
Figure 8.6 - 2035 Do Minimum Scenario (Lnight)
Figure 8.7 - 2035 Do Something Scenario (Lday)
Figure 8.8 - 2035 Do Something Scenario (Lnight)
Figure 9.1 - Site Location at College Green in relation to downstream Natura 2000 sites
Figure 10.1 - Extract from archaeology.ie showing recorded monuments within 150m of the
Proposed Project
Figure 10.2 - Extract from the Dublin City Development Plan showing protected structures
(red stars) and ACAs (green hatching)
Figure 10.3 - Extract from Clarke’s map of Dublin showing the possible extent of ‘Hoggen
Green’ within the landscape containing the Proposed Project.
Figure 10.4 - Extract from De Gomme’s map of 1673 showing the approximate location of
the Proposed Project
Figure 10.5 - Extract from Rocque’s map of 1756, showing the approximate location of the
Proposed Project
Figure 10.6 - Extract from the WSC mapping, showing proposed changes on the northern
side of College Green
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Plate 10.1 - College Green, facing west
Plate 10.2 - Henry Grattan Statue and Lamp
Plate 10.3 - Plaque to Thomas Davis in College Green
Plate 10.4 - Thomas Davies Statue and Fountain
Plate 10.5 - College Street
Plate 10.6 - Thomas Moore Statue (archive photograph)
Plate 10.7 - Foster Place
Plate 10.8 - Church Lane
Figure 11.1 - Zone of Theoretical Visibility / Study Area - College Green Plaza
Figure 11.2 - Key Views and Prospects Map
Figure 11.3 - Viewpoint Locations - College Green Plaza
(Refer to accompanying photomontage booklet:)
Figure VP1a - Northern side of College Green - Existing
Figure VP1a - Northern side of College Green – Montage
Figure VP1a - Northern side of College Green – Montage with Fountain
Figure VP1b - Northern side of College Green - Existing
Figure VP1b - Northern side of College Green - Montage
Figure VP2 - South-western corner of College Green - Existing
Figure VP2 - South-western corner of College Green – Montage
Figure VP2 - South-western corner of College Green – Montage with Fountain
Figure VP3 - Southern side of College Green - Existing
Figure VP3 - Southern side of College Green - Montage
Figure VP3 - Southern side of College Green – Montage with Fountain
Figure VP4 - Trinity College entrance - Existing
Figure VP4 - Trinity College entrance - Montage
Figure VP5 - Westmoreland Street - Existing
Figure VP5 - Westmoreland Street – Montage
Figure 12.1 - Location of the Study Area
Figure 12.2 - Site Setting
Figure 12.3 - Soils in the vicinity of the site
Figure 12.4 - Subsoil in the vicinity of the site
Figure 12.5 - Solid geology in the vicinity of the study area
Figure 12.6 - Previous site investigation locations
Figure 12.7 - Bedrock aquifers in the vicinity of the study area
Figure 12.8 - Groundwater vulnerability
Figure 12.9 - Groundwater recharge
Figure 12.10 - Flood events
Figure 12.11 - River Stein
Figure 12.12 - Tidal Flood
Figure 12.13 - Depth Grid
Figure 12.14 - Pluvial Flood Extent
Figure 12.15 - PFRA Flood Extent
Figure 12.16 - Vulnerability Classification
Figure 12.17 - Sequential approach mechanism in the planning process
Figure 12.18 - Sensitive features in the vicinity of the study area
Figure 12.19 - Conceptual Model
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Figure 13.1 - Circular Economy
Figure 13.2 - Waste Hierarchy
Figure 13.3 - Litter Bin type currently in use in College Green
Figure 13.4 - Example Smart Compactor Litter Bin
Figure 15.1 - Land use classification
Figure 15.2 - Aerial photo of subject and adjoining land uses
Figure 15.3 - Residential buildings within the study areas
Figure 15.4 - All residential extant planning permissions within the study area
Figure 15.5 - Extant planning permissions within the study area (large residential
development schemes)
Figure 15.6 - Commercial land uses in the wider study area
Figure 15.7 - General Practitioners and Hospital within Study Area
Figure 15.8 - Schools within the study area
Figure 16.1 - Life Expectancy at Birth, Ireland and EU-28 by Gender, 2005-2014
Figure 16.2 - Death Rates in Ireland
Figure 16.3 - Geographical spread of people with a disability in Dublin City in 2011
List of Appendices
Appendix 1.1- Proposed College Green Traffic Management Measures
Appendix 4.1- Outline Construction and Environmental Management Plan
Appendix 6.1- Traffic Modelling Report and Data
Appendix 7.1- Detailed Meteorological Data
Appendix 9.1- Report for the purposes of Appropriate Assessment Screening
Appendix 12.1- IGI Guidelines and Impact Significance
Appendix 12.2- Historical Setting of Area
Appendix 12.3- Flood Risk Assessment
Appendix 13.1- Resource and Waste Management Policy and Legislation Review
Appendix 13.2- Construction Waste Case Studies