Project Overview
A Preliminary Design Study and Transportation Environmental Study Report (TESR) were completed in 2020 which evaluated alternatives and recommended replacement of the underpass structure as the technically preferred alternative. If you wish to review the 2020 TESR, please visit the Previous Studies page.
The structure requires replacement due to its existing condition and deficient vertical clearance over Highway 401. The replacement bridge is to be built to accommodate the future Highway 401 footprint (six (6) lanes) consisting of one (1) additional outside lane in each direction. The Project location is shown in the key map below.
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The Project includes:
- Replacement of the existing underpass along the existing horizontal alignment;
- Profile grading of the approach embankment to accommodate the new structure depth and increased vertical clearance on Highway 401;
- Embankment widening;
- Pavement reconstruction;
- Drainage improvements;
- Replacement of curb and gutter; and,
- Installation of guiderail, as required, for the new structure and vertical alignment improvements.