Queensway Expansion East

Highway 417 Nicholas Street Underpass (Site #3-224) Replacement, Detail Design

In 2018, the Ministry of Transportation (MTO) completed the Detail Design and Class Environmental Assessment (EA) for the replacement of the Highway 417 Nicholas Street Underpass (GWP 4048-11-00), in the City of Ottawa. The scope of work involved the following:

  • Full replacement of the existing bridge on a new alignment immediately west of the existing bridge;
  • Re-alignment of the associated interchange ramps (specifically, ramps in the northwest, southwest and northeast quadrants) as required by the new bridge alignment;
  • Short extension of the fourth Highway 417 through lanes in each direction, to just west of the Nicholas Street Underpass; and
  • Construction of related works, including drainage, illumination, and roadside protection barriers.

Construction is currently underway. Traffic management and pedestrian/cyclist detours for construction staging has been coordinated with the City of Ottawa.

MTO Class EA Process
The project is followed the approved environmental planning process for Group “B” undertakings under the Class Environmental Assessment (Class EA) for Provincial Transportation Facilities (2000), with the opportunity for public input throughout the study.

A Design and Construction Report (DCR) was prepared for the project and made available for a 30-day public review period from April 17, 2018 to May 16, 2018. The DCR is available via the following links:

Design and Construction Report (DCR)
Appendix A
Appendix B
Appendix C
Appendix D
Appendix E
Appendix F

A Public Information Centre (PIC) was held on October 25, 2017. Display materials presented at the PIC are accessible via the following link:

PIC Display Boards – Highway 417 Nicholas Street Underpass (Site #3-224) Underpass Replacement

If you have questions or comments, please contact David Lindensmith, MTO Senior Project Engineer at dave.lindensmith@ontario.ca or 1-800-267-0295 ext. 4701.