Queensway Expansion East

Highway 417 Rehabilitation and Widening from west of Maitland Avenue to east of Island Park Drive

The Ministry of Transportation (MTO) has retained MMM Group Limited to complete the detail design for the rehabilitation and widening of Highway 417 from 0.5 km west of Maitland Avenue to 0.6 km east of Island Park Drive (GWP 4058-01-00). The project involves the following components:

  • Widening of Highway 417 to four lanes in each direction between Maitland Avenue and Carling Avenue, including reconstruction of the Maitland Avenue and Carling Avenue interchange ramps;
  • Rehabilitating the Merivale Road Overpass bridges and widening the eastbound bridge to the south;
  • Replacing all existing noise barriers within the project limits;
  • Constructing related works including retaining walls, replacement and upgrades to drainage, roadside protection, illumination, highway signage, Advanced Traffic Management System (ATMS), and landscaping;
  • Relocating utilities impacted by the highway widening; and
  • Implementing traffic management for construction staging in coordination with the City of Ottawa.

Construction may begin as early as August 2017 and is expected to end in December 2020. Anticipated traffic impacts related to construction staging include:

  • Occasional lane reductions on Highway 417 from three through lanes to two through lanes in each direction during off-peak periods;
  • One full overnight closure of Highway 417 within the project limits for works on the Merivale Road bridges;
  • Short-term ramp closures (between one and nine weeks’ duration) at the Maitland Avenue and Carling Avenue interchange, as well as an overnight closure of the Parkdale Avenue on-ramp to Highway 417 westbound;
  • Long-term closure of the Carling Avenue E-E on-ramp (on-ramp from Carling Avenue westbound to Highway 417 eastbound) for a period of four years (see the paragraph below regarding a separate Detail Design and Environmental Assessment Study regarding this ramp); and
  • Two weekend closures of Merivale Road between Carling Avenue and Island Park Drive.

During highway ramp closures of extended durations and the full overnight closure of Highway 417, traffic will be redirected along signed detour routes on municipal roads. Closure of on- or off-ramps in the same direction of travel at consecutive interchanges will not be permitted.

A separate Detail Design and EA Study is being completed for the proposed permanent closure of the Carling Avenue E-E on-ramp (on-ramp from Carling Avenue westbound to Highway 417 eastbound, located adjacent to the Westgate Shopping Centre) (WP 4255-15-01). The Highway 417 widening between Maitland Avenue and Island Park Drive will result in future operational and safety issues due to the introduction of a significantly substandard merge condition for the existing Carling Avenue W-E on-ramp (on-ramp from Carling Avenue eastbound to Highway 417 eastbound). The permanent closure of the low volume E-E on-ramp is proposed as a means to accommodate the highway widening and provide a standard-length merge lane for the high volume W-E on-ramp, while maintaining access to Highway 417 eastbound within the Carling Avenue interchange. Should the Detail Design and EA Study be approved, the E-E on-ramp will remain closed permanently following construction of the highway widening, and mitigation for redirected traffic will be implemented at the Carling Avenue westbound / Kirkwood Avenue and Carling Avenue / Saigon Court intersections.