Municipal Class Environmental Assessment Studies

To consider a range of options for corridor improvements to Regional Road 25 from Speers Road to Derry Road (Regional Road 7) in the Towns of Milton and Oakville.

Halton Region will examine a wide range of multi-modal transportation improvements, including widening of the roadway, cross-sectional requirements, active transportation (walking and cycling), intersection improvements and overall traffic operations, as well as the impact of such improvements on the social, cultural and natural environments.

Public Information Centre #1

An online Public Information Centre (PIC) took place between October 12 and November 9, 2023. The presentation and transcript are available to view in the documents section below.

Public Information Centre #2

A second Public Information Centre took place between June 19 and July 17, 2025, to review the design alternatives and recommended design for each corridor. To learn more about the study findings so far, please visit the project consultation page.

Project Documents

• Notice of Completion - Regional Road 25 MCEA Study
• Environmental Study Report - Regional Road 25 MCEA Study (PDF file) 
  • Appendix A: Stage 1 Archaeological Assessment Report (Part 1) (PDF file)
  • Appendix A: Stage 1 Archaeological Assessment Report (Part 2) (PDF file) (Maps available upon request)
  • Appendix B: Cultural Heritage Assessment Report (PDF file)
  • Appendix C: Natural Environment Report (Part 1) (PDF file) (appendices available upon request)
  • Appendix C: Tree Inventory Report (Part 2) (PDF file) (appendices available upon request)
  • Appendix D: Drainage and Stormwater Management Report (PDF file) (appendices available upon request)
  • Appendix E: Fluvial Geomorphological Report (available upon request)
  • Appendix F: Preliminary Structural Design Report (available upon request)
  • Appendix G: Consultation Record - Study Notices (PDF file) (Additional consultation appendices available upon request)
  • Appendix H: Preliminary Design Plates (PDF file)
  • Appendix I: Geotechnical Investigation Report (PDF file) (appendices available upon request)
  • Appendix J: Noise Assessment Report (PDF file) (appendices available upon request)
  • Appendix K: Air Quality Assessment Report (PDF file) (appendices available upon request)
  • Appendix L: Hydrogeology Report (PDF file) (appendices available upon request)
  As noted above, technical report appendices are available upon request. Please email RR25MCEA@halton.ca.
• Notice of Public Information Centre #2 – Regional Road 25 MCEA Study
• PIC #1 Presentation - Regional Road 25 MCEA Study (PDF file)
• Notice of Public Information Centre #1 – Regional Road 25 MCEA Study (PDF file)
• Notice of Study Commencement – Regional Road 25 Corridor Study (PDF file)