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NOTICE OF STUDY COMMENCEMENT - Highway 401 Planning Study

Posted On Monday November 24, 2025
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The Ontario Ministry of Transportation (MTO) has commissioned HDR Inc. to conduct a *Preliminary Design and Class Environmental Assessment (Class EA)* Study.
This study focuses on:

- Replacing the **Shanly Road Underpass**
- Improving interchanges
- Establishing the footprint of Highway 401 for future six-lane expansion along a 10.1 km stretch

Highway 401 Planning Study

From: 1 km East of Highway 16
To: 2.5 km East of Shanly Road
Location: Township of Edwardsburgh/Cardinal, United County of Leeds & Grenville
Type: Preliminary Design and Class Environmental Assessment Study (GWP 4137-22-00)

For project information, comments, or to join the mailing list, please visit:
https://www.highway401-cardinal.ca/
https://static1.squarespace.com/static/690d3b0a1071e40ee11e7edb/t/690e4d54ea662f1a4dec28ff/1762544980975/GWP+4137-22-00+Notice+of+Study+Commencement+-+Final+-+r2.pdf

Contact Information:
Jian Guan, P. Eng.
Consultant Project Manager
HDR Inc.
100 York Boulevard, Suite 300
Richmond Hill, ON L4B 1J8
Tel: 647-321-5134
Email: Jian.Guan@hdrinc.com

Sevag Amen, P. Eng.
Senior Project Engineer
Ontario Ministry of Transportation
1355 John Counter Boulevard, PO Box 4000
Kingston, Ontario K7L 5A3
Tel: 613-483-5489
Email: Sevag.Amen@ontario.ca

Attachments

GWP 4137-22-00 Notice of Study Commencement - Final -
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