SA1 to Agreement No. CE 54/2001 (CE)

 

WAN CHAI DEVELOPMENT PHASE II

PLANNING AND ENGINEERING REVIEW

 

 

ENVIRONMENTAL IMPACT ASSESSMENT REPORT

for

WAN CHAI DEVELOPMENT PHASE II AND CENTRAL-WAN CHAI BYPASS

 

 

CONTENTS

 

 

                                                                                                                                               Page

VOLUME 2 – Road Works

Part A - Schedule 2 DP1: Central-Wanchai Bypass (CWB) including its road tunnel and slip roads

 

1          INTRODUCTION..................................................................................................... 1-1

1.1        Project Background........................................................................................... 1-1

1.2        WDII Review................................................................................................... 1-2

1.3        Harbour-Front Enhancement Review.................................................................. 1-3

1.4        Environmental Impact Assessment..................................................................... 1-4

1.5        Objectives and Scope of the EIA Study............................................................... 1-5

1.6        Designated Projects under the EIAO.................................................................. 1-6

1.7        Relevant Approved EIA Reports........................................................................ 1-7

1.8        Structure of this Volume 2 – Part A.................................................................... 1-7

 

2          PROJECT DESCRIPTION....................................................................................... 2-1

2.1        Site Location..................................................................................................... 2-1

2.2        EIA Study Area................................................................................................ 2-1

2.3        Review of Previous EIAs................................................................................... 2-2

2.4        Project Requirements, Scope and Benefits.......................................................... 2-5

2.5        Consideration of Alternatives and Development of Preferred Option..................... 2-8

2.6        Construction Methods and Engineering Requirements......................................... 2-20

2.7        Operation of the Project................................................................................... 2-23

2.8        Works Programme........................................................................................... 2-23

2.9        Related Projects.............................................................................................. 2-23

 

3          AIR QUALITY.......................................................................................................... 3-1

3.1        Introduction....................................................................................................... 3-1

3.2        Environmental Legislation, Policies, Plans, Standards and Criteria......................... 3-1

3.3        Description of the Environment........................................................................... 3-2

3.4        Sensitive Receivers............................................................................................ 3-3

3.5        Identification of Environmental Impacts............................................................... 3-5

3.6        Assessment Methodology................................................................................... 3-7

3.7        Prediction and Evaluation of Environmental Impacts........................................... 3-23

3.8        Mitigation of Adverse Environmental Impacts.................................................... 3-35

3.9        Evaluation of Residual Impacts......................................................................... 3-35

3.10      Environmental Monitoring and Audit.................................................................. 3-36

3.11      Conclusion....................................................................................................... 3-36

 

4          NOISE........................................................................................................................ 4-1

4.1        Introduction....................................................................................................... 4-1

4.2        Environmental Legislation, Policies, Plans, Standards and Criteria......................... 4-1

4.3        Description of the Environment........................................................................... 4-6

4.4        Sensitive Receivers............................................................................................ 4-7

4.5        Assessment Methodology................................................................................... 4-9

4.6        Identification of Environmental Impacts............................................................. 4-15

4.7        Prediction and Evaluation of Environmental Impacts........................................... 4-16

4.8        Mitigation of Adverse Environmental Impacts.................................................... 4-18

4.9        Evaluation of Residual Impacts......................................................................... 4-24

4.10      Environmental Monitoring and Audit.................................................................. 4-26

4.11      Conclusion....................................................................................................... 4-27

 

5          WATER QUALITY................................................................................................... 5-1

5.1        Introduction....................................................................................................... 5-1

5.2        Water Sensitive Receivers................................................................................. 5-1

5.3        Environmental Legislation, Policies, Plans, Standards and Criteria......................... 5-1

5.4        Description of the Environment........................................................................... 5-4

5.5        Identification of Environmental Impact................................................................ 5-7

5.6        Assessment Methodology................................................................................... 5-8

5.7        Prediction and Evaluation of Environmental Impacts............................................ 5-8

5.8        Mitigation of Adverse Environmental Impacts...................................................... 5-9

5.9        Evaluation of Residual Impacts......................................................................... 5-12

5.10      Environmental Monitoring and Audit.................................................................. 5-12

5.11      Conclusion....................................................................................................... 5-13

 

6          WASTE MANAGEMENT......................................................................................... 6-1

6.1        Introduction....................................................................................................... 6-1

6.2        Environmental Legislation, Policies, Plans, Standards and Criteria......................... 6-1

6.3        Assessment Methodology................................................................................... 6-3

6.4        Identification of Potential Sources of Impact........................................................ 6-3

6.5        Prediction and Evaluation of Environmental Impacts............................................ 6-3

6.6        Mitigation Measures.......................................................................................... 6-8

6.7        Evaluation of Residual Impacts......................................................................... 6-11

6.8        Environmental Audit......................................................................................... 6-11

6.9        Conclusion....................................................................................................... 6-11

 

7          LAND CONTAMINATION...................................................................................... 7-1

 

8          SEWERAGE IMPACT AND SEWAGE TREATMENT IMPLICATIONS............. 8-1

 

9          MARINE ECOLOGY................................................................................................ 9-1

 

10.       LANDSCAPE AND VISUAL IMPACT ASSESSMENT........................................ 10-1

10.1      Introduction..................................................................................................... 10-1

10.2      Environmental Legislation, Standards and Guidelines.......................................... 10-1

10.3      Assessment Methodology................................................................................. 10-2

10.4      Scope and Content of the Study........................................................................ 10-7

10.5      Review of Planning and Development Control Framework................................. 10-8

10.6      Comments on Landscape and Visual Issues received during Consultations......... 10-11

10.7      Baseline Study............................................................................................... 10-13

10.8      Landscape Impact Assessment....................................................................... 10-34

10.9      Visual Impact Assessment.............................................................................. 10-44

10.10    Conclusion..................................................................................................... 10-53

 

11        CULTURAL HERITAGE ...................................................................................... 11-1

 

12        ENVIRONMENTAL MONITORING AND AUDIT.............................................. 12-1

12.1      Introduction..................................................................................................... 12-1

12.2      Air Quality Impact........................................................................................... 12-1

12.3      Noise Impact................................................................................................... 12-2

12.4      Water Quality Impact....................................................................................... 12-2

12.5      Waste Management......................................................................................... 12-3

12.6      Land Contamination......................................................................................... 12-3

12.7      Marine Ecology............................................................................................... 12-3

12.8      Landscape and Visual...................................................................................... 12-3

12.9      Cultural Heritage............................................................................................. 12-4

 

13        IMPLEMENTATION SCHEDULE OF THE PROPOSED MITIGATION MEASURES
            .................................................................................................................................. 13-1

 

14        CONCLUSION........................................................................................................ 14-1

14.1      Introduction..................................................................................................... 14-1

14.2      Environmental Outcomes................................................................................ 14-15

14.3      Air Quality Impact......................................................................................... 14-23

14.4      Noise Impact................................................................................................. 14-23

14.5      Water Quality Impacts................................................................................... 14-25

14.6      Waste Management Implications..................................................................... 14-25

14.7      Land Contamination Impact............................................................................ 14-26

14.8      Marine Ecological Impact............................................................................... 14-26

14.9      Landscape and Visual Impact......................................................................... 14-26

14.10    Cultural Heritage Impact................................................................................ 14-27

14.11    Environmental Monitoring and Audit................................................................ 14-28

14.12    Overall Conclusion......................................................................................... 14-28