50301-003: Second Integrated Road
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Initial Environmental Examination Project Number: 50301-003 Loan Number: 3851 November 2020 SRI: Second Integrated Road Investment Program – Tranche 2 Improvement, Rehabilitation and Maintenance of - Galle Road (A002) from William Junction to Maliban Junction - Rathmalana Mirihana Road (B389) - Kotte Bope Road (B240) from Malabe to Godagama - Peliyagoda Puttlam Road from Peliyagoda Roundabout to Nawaloka Roundabout & Dandugama to Kochchikade Bridge Prepared by the Road Development Authority, Ministry of Highways for the Asian Development Bank. This Initial Environmental Examination Report is a document of the borrower. The views expressed herein do not necessarily represent those of ADB's Board of Directors, Management, or staff, and may be preliminary in nature. In preparing any country program or strategy, financing any project, or by making any designation of or reference to a particular territory or geographic area in this document, the Asian Development Bank does not intend to make any judgments as to the legal or other status of any territory or area. Ministry of Highways SECOND INTEGRATED ROAD INVESTMENT PROGRAM Providing Services for Preparation of Environmental, Social Safeguard Documents for Improvement Rehabilitation and Maintenance of 1. Galle Road (A002) from William Junction to Maliban Junction 2. Peliyagoda Puttlam Road from Peliyagoda Roundabout to Nawaloka Roundabout & Dandugama to Kochchikade Bridge 3. Rathmalana Mirihana Road (B389) 4. Kotte Bope Road (B240) From Malabe to Godagama Initial Environmental Examination Report Final Report November 2020 Prepared by SMEC in Association with RDC & MHEC On behalf of Road Development Authority Ministry of Highways Submitted to Asian Development Bank Initial Environmental Examination Document Status: Final Report Date: November 2020 Survey and Preliminary Engineering (SAPE) works for Second Integrated Road Investment Program Rehabilitation and improvement of: 1. Colombo–Galle Road (A002) from William Junction to Maliban Junction (from 8+320 km to 13+350 km) 2. Peliyagoda–Puttalam Road (A003) from Peliyagoda Roundabout to Nawaloka Roundabout (0+000 km to 0+600 km) and from Dandugama to Kochchikade (19+000 km to 37+600 km) 3. Rathmalana–Mirihana Road (B389) from Maliban Junction to Bakery Junction (from 0+000 km to 2+200 km) 4. Kotte–Bope Road (B240) From Malabe to Godagama (from 5+000 km to 16+800 km) Prepared by SMEC in Association with RDC & MHEC for the Road Development Authority, Sri Lanka ABBREVIATIONS ADB - Asian Development Bank AMSL - Above Mean Sea Level BIQ - Basic Information Questionnaire BOD - Biochemical Oxygen Demand CEA - Central Environmental Authority DS - Divisional Secretary EA - Executing Agency EHS - Environment, Health & Safety EIA - Environmental Impact Assessment EMP - Environmental Management Plan EMoP - Environmental Monitoring Plan EPL - Environmental Protection License FFPO - Fauna and Flora Protection Ordinance FS - Feasibility Study GHG - Greenhouse Gas GN - Grama Niladhari GoSL - Government of Sri Lanka GRC - Grievance Redress Committee GRM - Grievance Redress Mechanism GSMB - Geological Survey and Mines Bureau H&S - Health and Safety H&SP - Health and Safety Plan IA - Implementing Agency IEE - Initial Environmental Examination IFC - International Finance Corporation iRoad 2 - Second Integrated Road Investment Program IUCN - International Union for Conservation of Nature MEN - Ministry of Environment MOH&RD - Ministry of Highways & Road Development MSL - Mean Sea Level NEA - National Environmental Act I NGO - Non-Governmental Organization NWSDB - National Water Supply and Drainage Board O&M - Operation and Maintenance PAA - Project Approving Agency PD - Project Director PIC - Project Implementation Consultants PIU - Project Implementation Unit PPE - Personal Protective Equipment RDA - Road Development Authority REA - Rapid Environmental Assessment RoW - Right of Way SAPE - Survey and Preliminary Engineering SPS - ADB Safeguard policy statement 2009 II TABLE OF CONTENT TABLE OF CONTENT ........................................................................................................... IV ANNEXES .............................................................................................................................. VI APPENDICES ....................................................................................................................... VII LIST OF FIGURES ................................................................................................................ IX LIST OF TABLES ................................................................................................................... X EXECUTIVE SUMMARY ...................................................................................................... XII 1. INTRODUCTION ............................................................................................................. 1 A. Background................................................................................................................... 1 B. Objectives of the proposed project ............................................................................... 1 C. Objectives of the Initial Environmental Examination ..................................................... 2 D. Outline of the Assessment ............................................................................................ 3 E. Approach, Methodology, and Personnel Involved ........................................................ 3 2 POLICY, LEGAL, AND ADMINISTRATIVE FRAMEWORK ........................................... 6 A. Applicable Laws, Regulations, Standards, and Requirements ..................................... 6 A1 National Environmental Act and other applicable regulation ................................ 6 A2 Project-relevant International Agreements and Conventions .............................. 14 B. ADB Policy on Environmental & Social safeguards .................................................... 16 3 DESCRIPTION OF THE PROJECT .............................................................................. 18 A. Location of the project ................................................................................................ 18 B. Category of the project ............................................................................................... 20 C. Need for the Project .................................................................................................... 20 D. Analysis of Alternatives ............................................................................................... 27 D1 No Project Alternative ......................................................................................... 27 D2 With Project Alternative ....................................................................................... 27 E. Magnitude of Operations ............................................................................................ 28 E1 Proposed improvement ....................................................................................... 28 E2 Project activities .................................................................................................. 29 E3 Extraction of Construction Material ..................................................................... 31 4 DESCRIPTION OF EXISTING ENVIRONMENT ........................................................... 33 A. Existing land use along the road ................................................................................. 33 A1 Land Use ............................................................................................................. 33 A2 Existing condition of the carriageways and the pavements ................................ 36 IV A3 Existing condition of culverts and bridges ........................................................... 37 B. Physical Environment ................................................................................................. 37 B1 Climate, land use, terrain and soil ....................................................................... 37 B2 Hydrology ............................................................................................................ 40 B3 Water Quality ...................................................................................................... 46 B4 Air Quality ........................................................................................................... 49 B5 Noise Levels ....................................................................................................... 50 C. Ecological Environment .............................................................................................. 53 C1 General description of the project area ............................................................... 53 C2 Major Habitat Types ............................................................................................ 53 C3 Environment condition of individual roads/sections ............................................ 55 C4 Flora and Fauna of the project area .................................................................... 56 D. Socio-Economic Environment ..................................................................................... 58 5 ANTICIPATED ENVIRONMENTAL IMPACTS AND PROPOSED MITIGATION MEASURES .................................................................................................................. 66 A. Identification of Potential Environmental Impacts and Mitigation of