HIGHWAY 427 EXPANSION | Design and Construction Report Highway 427 Expansion Project Design and Construction Report Project Number 16M-01172-11 Document Number H427-0-ENV-REP-032 April 10, 2018 HIGHWAY 427 EXPANSION | Design and Construction Report THE PUBLIC RECORD This Design and Construction Report (DCR) is being carried out in accordance with the approved environmental planning process for projects under the Ontario Ministry of Transportation (MTO) Class Environmental Assessment (Class EA) for Provincial Transportation Facilities (2000). A copy of this document has been submitted to the following office of the Ontario Ministry of the Environment and Climate Change (MOECC) to fulfill the requirements of the MTO Class EA. Ministry of the Environment and Climate Change Central Region Office 5775 Yonge Street, 8th Floor North York, Ontario M2M 4J1 This report is available online for review at www.427expansion.ca, as well as the following review locations between April 10, 2018 to May 11, 2018 during regular business hours: MOECC EA File #: TC-CE-02 Ministry of Environment & Climate Change Ministry of Transportation Environmental Assessment and Permissions Branch Central Region 135 St. Clair Avenue West, 1st Floor, Toronto, Major Projects Office ON M4V 1P5 159 Sir William Hearst Avenue, 7th Floor, Toronto, Tel: (416) 314-8001 ON M3M 0B7 Tel: (416) 235-4299 City of Vaughan Clerk’s Office Regional Municipality of York Clerk’s Office 2141 Major Mackenzie Drive, Vaughan, ON L6A 1T1 17250 Yonge St., Newmarket, ON L3Y 6Z1 Tel: (905) 832-2281 Tel: (905) 895-1231 Kleinburg Library Toronto Public Library – Humberwood Library 10341 Islington Avenue N., Vaughan, ON L0C 1C0 850 Humberwood Boulevard, Etobicoke, ON M9W 7A6 Tel: (905) 653-7323 Tel: (416) 394-5210 Etobicoke Civic Centre LINK427 Project Office 399 The West Mall, Toronto, ON M9C 2Y2 1 Royal Gate Boulevard, Woodbridge, ON L4L 8Z7 Tel: (416) 338-4386 Regional Municipality of Peel Clerk’s Office LINK427 Project Website 10 Peel Centre Drive, Brampton ON L6T 4B9 www.427expansion.ca Tel: (905-791-7800) Ce document hautement spécialisé n’est disponible qu’en anglais en vertu du règlement 411/97, qui en exempte l’application de la Loi sur les services en français. Pour de l’aide en français, Appelez le Bureau des services en français au: 1-888-595-3152. LOCAL | INTEGRATED |NEIGHBOURLY | KNOWLEDGEABLE Page 3 HIGHWAY 427 EXPANSION | Design and Construction Report HOW TO COMMENT Interested persons are encouraged to review this DCR and provide comments by May 11, 2018. Comments and information are being collected to assist LINK427 in meeting the requirements of the Ontario Environmental Assessment Act. Information will be collected in accordance with the Freedom of Information and Protection of Privacy Act. With the exception of personal information, all comments will become part of the public record. Comments on this DCR can be provided by mail, e-mail, or online to: Mr. Christopher Tschirhart Mr. Aitor Arbesu Iglesias Environmental Director Project Director LINK427 LINK427 1 Royal Gate Blvd., Suite G 1 Royal Gate Blvd., Suite G Woodbridge, ON L4L 8Z7 Woodbridge, ON L4L 8Z7 Phone: 1-888-352-8085 Phone: 1-888-352-8085 E-mail: [email protected] E-mail: [email protected] If you have any accessibility requirements to participate in this project, please contact one of the Project Team members listed above. Des renseignements sont disponibles en français en composant 1-888-595-3152. Page 4 DCR #2 | H427-0-ENV-REP-032 HIGHWAY 427 EXPANSION | Design and Construction Report TABLE OF CONTENTS Executive Summary Project Overview ................................................................................................................................................... 13 Project Team and Background ....................................................................................................................... 13 Previous Studies - Preliminary Design ........................................................................................................... 13 Highway 427 Extension Transportation Corridor Environmental Assessment Report ............................ 13 Highway 427 from Albion Road to Highway 7, Preliminary Design and Class EA Study, Transportation Environmental Study Report .................................................................................................................................. 14 Highway 427 Extension Widening from Highway 7 to Major Mackenzie Drive ....................................... 14 Detail Design Project Description ................................................................................................................... 14 Purpose of the Design and Construction Report ............................................................................................ 21 Environmental Assessment Process ..................................................................................................................... 22 Ontario Environmental Assessment Act ......................................................................................................... 22 Canadian Environmental Assessment Act ..................................................................................................... 23 Consultation Process ............................................................................................................................................. 24 Previous Consultation Undertaken during Preliminary Design ....................................................................... 24 Consultation during Detail Design .................................................................................................................. 24 Project Website ...................................................................................................................................... 25 Study Contact List .................................................................................................................................. 25 Notice of Commencement of Detail Design and Construction ................................................................ 27 Stakeholder Interaction .......................................................................................................................... 28 Indigenous Communities Consultation ................................................................................................... 28 Public Information Centre ....................................................................................................................... 29 Detailed Description of the Undertaking ................................................................................................................ 33 Highway 427 Widening from Finch Avenue to Highway 7 .............................................................................. 33 Refinements to the Reference Concept Design ..................................................................................... 33 Mainline Widening .................................................................................................................................. 34 Widening and Rehabilitation of Existing Structures ................................................................................ 35 Crossing Roads (Including grade separations) and Interchanges .......................................................... 40 Stormwater Management and Drainage during Construction ................................................................. 41 Illumination, Signalized Intersections, Advanced Traffic Management System (ATMS) ......................... 45 Utility Relocations ................................................................................................................................... 47 Retaining Walls ...................................................................................................................................... 49 Fencing (Security Fence) ....................................................................................................................... 50 Construction Staging for the Highway 427 Widening ............................................................................. 50 Active Transportation ............................................................................................................................. 55 Detailed Description of the..................................................................................................................................... 55 LOCAL | INTEGRATED |NEIGHBOURLY | KNOWLEDGEABLE Page 5 HIGHWAY 427 EXPANSION | Design and Construction Report Highway 427 Extension from Highway 7 to Major Mackenzie Drive ............................................................... 55 Refinements to the Reference Concept Design ..................................................................................... 55 New Highway Construction .................................................................................................................... 56 New Structures ....................................................................................................................................... 58 Crossing Roads (including grade separations) and New Interchanges .................................................. 59 Stormwater Management and Drainage ................................................................................................. 63 Illumination ............................................................................................................................................