The Regional Municipality Of York

ALERT: In response to the COVID-19 situation, York Region has declared a State of Emergency  |  Get the latest on our response to COVID-19  |  Masks and face coverings are mandatory in York Region effective July 17  |  Re-opening and resuming business during COVID-19  


Leslie Street EA

Graphic Map Leslie Street EA Study Area. For a detailed description please call 1 877 464 9675 extension 75560.

Project Background

Municipal Class Environmental Assessment Study Leslie Street between 19th Avenue and Stouffville Road

York Region has reviewed the previously completed Leslie Street Environmental Assessment (EA) Study between 19th Avenue and Stouffville Road in the City of Richmond Hill. Through the Study, York Region has reviewed improvements to Leslie Street, including: realigning Leslie Street at Stouffville Road, constructing an overpass at the CN Railway Crossing and widening Leslie Street to four lanes.

Environmental Study Report:

Leslie Street Addendum Part 1
Leslie Street Addendum Part 2


Appendix A Meeting and Correspondence
Appendix B Consultation Record
Appendix C Technical Memos and Detailed Analysis
Appendix D Stage 1 Archaeological Assessment Report
Appendix E Cultural Heritage Assessment Report
Appendix F Natural Environment Memo
Appendix G1 Drainage and Stormwater Management Report
Appendix G2 Fluvial Geomorphological Memo
Appendix H Structural Drawings
Appendix I Geotechnical Report
Appendix J Streetscape Concept Plan
Appendix K Noise Assessment Report

Public Notices

Notice of Open House - Tuesday, March 28, 2017

Notice of Completion - Thursday, November 21, 2019

Public Open Houses

Open House 1 Materials

Road, Municipality:

Leslie Street, Richmond Hill

Project Number:


To submit a comment, question or for more information, please contact:

Teresa Vader
Communications and Community Engagement Specialist
1-877-464-9675 ext. 75889


Related Resources

Learn more about Environmental Assessments

2016 Transportation Master Plan

2010 Regional Official Plan

Leslie Street,environmental assessment,19th Avenue to Stouffville Road,EA,study,richmond hill The Regional Municipality of York en-US Leslie Street EA Leslie Street EA between 19th Avenue and Stouffville Road

Events Calendar

  • More events