May 26, 2021: Hallecks Road Underpass 

• Notice of Online Public Information Centre issued for the replacement of the Hallecks Road Underpass on Highway 401 in the Township of Elizabethtown-Kitley. The notice may be viewed here. Display materials may be viewed here.

May 10, 2021: Nudell Bush Road Underpass

• Notice of Completion and Filing of the Transportation Environmental Study Report (TESR) has been issued for the replacement of the Nudell Bush Road Underpass along Highway 401 in the Municipality of South Dundas. The notice may be viewed here. The TESR may be viewed here. The TESR Appendices may be viewed here.

April 8, 2021: Highway 401 Improvements from 1 km East of Highway 16 to 3.3 km West of Maitland Road 

• MTO is undertaking a Planning, Preliminary Design, and Class Environmental Assessment (Class EA) Study for Highway 401 from 1 km east of Highway 16 to 3.3 km west of Maitland Road for a total length of approximately 20.75 km, located within the Township of Augusta, Town of Prescott, and the Township of Edwardsburg Cardinal.  The study will look to address current and future transportation needs by developing a plan for the rehabilitation and/or replacement of fourteen (14) structures, determining the long-term plans for the Maitland Road, Edward Street and Highway 16 interchanges, and will establish the future footprint for interim six lanes and ultimate eight lanes of Highway 401.
• You are encouraged to visit the study website, www.highway401prescottmaitland.ca, where study information including notices, background information, PIC displays, and the TESR will be made available for review as the study progresses. You can also submit comments to the study team on the study website. 

August 27, 2020: Highway 401 Brockville Planning Study

• MTO is undertaking a Planning, Preliminary Design, and Class Environmental Assessment (Class EA) Study on Highway 401 for the rehabilitation and/or replacement of structures; interchange modifications; and to establish the footprint of future six and eight lanes along Highway 401 within the City of Brockville.
• You are encouraged to visit the study website, www.highway401brockville.ca, where study information including notices, background information, PIC displays, and the TESR will be made available for review as the study progresses. You can also submit comments to the study team on the study website. 

July 8, 2020: Fraser Road Underpass Replacement

• Notice of Submission issued for the replacement of the Fraser Road Underpass along Highway 401 in the Township of South Glengarry, United Counties of Stormont, Dundas and Glengarry. The notice may be viewed here. The TESR may be viewed here.

June 15, 2020: Hallecks Road Underpass Replacement 

• Notice of Study Commencement issued for the Hallecks Road Underpass along Highway 401 in the Township of Elizabethtown-Kitley, United Counties of Leeds and Grenville. The notice may be viewed here. ​

February 25, 2020: Fraser Road Underpass Replacement 

• The Transportation Environmental Study Report (TESR) for the Fraser Road Underpass Replacement will be posted for a 30-day public review period in Spring 2020.

January 6, 2020: Nudell Bush Road Underpass Replacement

• Notice of Online Public Information Centre issued for the replacement of the Nudell Bush Road Underpass along Highway 401 in the Municipality of South Dundas, United Counties of Stormont, Dundas and Glengarry. The notice may be viewed here. Display materials may be viewed here. 

October 9, 2019: Fraser Road Underpass Replacement

• Notice of Online Public Information Centre issued for the replacement of the Fraser Road Underpass along Highway 401 in the Township of South Glengarry, United Counties of Stormont, Dundas and Glengarry. The notice may be viewed here. Display materials may be viewed here.

September 18, 2019: Nudell Bush Road Underpass Replacement

• Notice of Study Commencement issued for the replacement of the Nudell Bush Road Underpass along Highway 401 in the Municipality of South Dundas, United Counties of Stormont, Dundas and Glengarry. The notice may be viewed here.

August 14, 2019: Fraser Road Underpass Replacement

• Notice of Study Commencement issued for the replacement of the Fraser Road Underpass along Highway 401 in the Township of South Glengarry, United Counties of Stormont, Dundas and Glengarry. The notice may be viewed here.