Highway 417 Bridge Replacement and Operational Improvements

The Ministry of Transportation (MTO) has retained WSP (formerly  MMM Group Limited)  to complete the Detail Design and Class Environmental Assessment (EA) Study for the replacement/rehabilitation of 10 bridges (5 sites) on Highway 417 between Preston Street and Percy Street, as well as operational improvements on Highway 417 from Island Park Drive to east of Lyon Street, in the City of Ottawa (GWP 4173-15-00). 

The project involves the following components:

• Replacement of the Rochester Street Overpass, Booth Street Overpass, Bronson Avenue Overpass, Preston Street Overpass and Percy Street Overpass structures using rapid replacement construction techniques;
• Preparation of temporary enclosed construction staging areas for the bridge replacement activities, including: construction of equipment access routes, new bridge components and demolition of existing bridges;
• Construction operations on City streets to provide the rapid replacement equipment with access from the construction staging areas to the bridge sites;
• Demolition of 458 Catherine Street (A1 Mini Storage facility) and construction of an earth embankment across the limits of the existing retaining wall at this site;
• Replacement of existing noise barriers on Highway 417 at the following locations:
  • On the north side of the highway, from Island Park Drive to east of Parkdale Avenue;
  • On the north side of the highway, from the Rochester westbound on-ramp, east to Bronson Avenue; and
  • On the south side of the highway, from Island Park Drive to west of the CPR/O-Train Overpass;
• Implementation of Queensway Context Sensitive Design recommendations related to structural design elements, noise barrier design, fencing, and landscaping, where applicable;
• Construction of related works including: tall wall median concrete barrier and drainage improvements from the CPR/O-Train Overpass to the Kent Street Overpass; retaining walls; illumination; overhead, bridge and ground-mounted signage; utility relocations; and roadside protection, as required.
• Traffic management for construction staging and the rapid replacement operations will be coordinated with the City of Ottawa.

This project is following the approved environmental planning process for Group 'B' undertakings under the Ministry of Transportation's Class Environmental Assessment (Class EA) for Provincial Transportation Facilities (2000), with the opportunity for public input throughout the project.

This website will be updated regularly, providing project and schedule updates, information on upcoming events such as the Online Public Information Centre (PIC), as well as project documentation as it becomes available.

​If you have questions or comments, or wish to be added to the project mailing list, please visit the Contact Us section of this website.

Project Updates

• February 11, 2020: Online Public Information Centre materials are available for review on the project website here. Comments on project plans can be submitted through the website here.
• Notices announcing the online Public Information Centre were published in the Ottawa Citizen and Le Droit on February 11, 2020. 
• September 10, 2018: Please note the project schedule has been updated. Please see the Schedule page for the revised dates. 
• Preston Street Overpass and Percy Street Overpass will now undergo rapid replacement instead of rehabilitation.
• Notices announcing Study Commencement were published in the Ottawa Citizen, Centretown News, and Le Droit on January 26, 2017.