Highway 401:
Ten Bridge Replacements
Study Overview:
The Ministry of Transportation, Ontario retained Dillon Consulting Limited (Dillon) to complete the Class Environmental Assessment (EA), Preliminary Design and Initial Detailed Design for the the replacement of ten bridges on Highway 401, 4 and 21. The project has been split into four separate undertakings:
Bayfield River Bridges - Project awaiting construction. Construction website will be launched in the future at www.bayfieldriverbridges.ca
To navigate to the bridge project that interests you, please click on the name of the project above.
Project Updates
October 18, 2021 - Highway 401/Colonel Talbot Road Underpass and Glanworth Drive Underpass - Ontario Land Tribunal Road Closing Hearing
Ontario Land Tribunal (OLT) Road Closing Hearing was held virtually on Monday, October 18, 2021 for the six road closings required for the road realignments under this project. The road closings were approved on November 1, 2021. More information about this decision can be found on the OLT website under OLT Case No. MM210012.
October 29, 2018 - Highway 401/ Colonel Talbot Road Underpass and Glanworth Drive Underpass Notice of Completion (TESR Addendum)
Notice of Completion issued for project. Public review period extends from Oct. 29, 2018 to December 10, 2018. Below, you can download copies of the Notice of Completion and a copy of the Final Transportation Environmental Study Report (TESR) for the project. Hard copies of the Final TESR are also available for public review at the locations indicated on the Notice of Completion. If you have questions or comments regarding the final TESR or wish to discuss the proposed improvements please contact one of the team members listed on the Notice of Completion. To view the project page click HERE.
FEBRUARY 2, 2018 - Highway 401/ Colonel Talbot Road Underpass and Glanworth Drive Underpass PIC 3
Public Information Centre 3 was held on February 1, 2018. Comments on the materials presented at PIC 3 are being requested by February 15, 2018. If you could not attend the PIC, the display materials and comment form are now available for download HERE. Additional information is also available on the project specific webpage HERE. If you would like to speak to a project team member please use the contact information found on the project comment form available HERE.
January 16, 2018 - Highway 401 Colonel Talbot Road Underpass and Glanworth Drive Underpass PIC 3
A third public information centre (PIC) is planned for February 1, 2018, to obtain input on the technically preferred alternatives for this project. The PIC will be an informal drop-in session with displays summarizing the work completed to date. Members of the Project team will be available to explain the displays, answer questions and record comments. PIC event details are outlined on the event notice available HERE or on the project specific page located HERE.
October 23, 2017 - Highway 401 Colonel Talbot Road Underpass and Glanworth Drive Underpass
Project update letter distributed. Field investigations continue in Fall 2017 with a third Public Information Centre (PIC) planned for winter 2018 to present the preferred plan for improvements.
August 2, 2017 - Highway 401 London Bridges (Murray Drain Culvert, Pond Mills Road Overpass, and CNR Overhead Bridge)
Transportation Environmental Study Report (TESR) was available for public review from
August 2, 2017 to September 1, 2017.