A: The Highway 401 Expansion Project is following the approved planning process for a Group ‘B’ project under the MTO Class Environmental Assessment (EA) for Provincial Transportation Facilities (2000).
The Preliminary Design was previously completed and is documented in two Transportation Environmental Study Reports (TESRs) for the “Highway 401 Improvements from East of the Credit River to Trafalgar Road W.O. 07-20021, Preliminary Design and Class Environmental Assessment Study (May, 2013)” and the “Highway 401 Improvements from Trafalgar Road to Regional Road 25 Preliminary Design and Class Environmental Assessment Study, W.O. 07-20024 (March, 2013)”. The recommendations from the TESRs will be built upon as part of the Detail Design.
In 2015, the Detail Design and Class EA was advanced for three of the structures from the Highway 401 Improvements from Trafalgar Road to Regional Road 25 (March 2013) TESR. This was documented in the Design and Construction Report (DCR) for the “Replacement and Widening of Highway 401 Regional Road 25 Underpass, 5th Line Overpass and Oakville Creek West Branch Structures, DB-2014-2009 (August 2015)”. Construction for the works in this DCR has been completed.
To view the previous TESRs and DCR visit the Previous EA Reports page.
The Detail Design for the Highway 401 Expansion Project were documented in three DCRs which were made available for a 30-day public and agency review period and available for download on the website. Notices for DCRs were published in local newspapers, on the Project website and distributed to those on the Project contact list. To be added to the Project contact list, visit the Contact Us page.