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Project Area from 156 Street to St. Albert Trail

Check out this map showing the proposed road changes.

Proposed Changes

  • Existing intersections at 149 Street and 142 Street will be closed, and there will be no direct access to Yellowhead Trail from these streets. Road users will access Yellowhead Trail at the nearest interchange, at either 156 Street or St. Albert Trail.

  • All other access directly to Yellowhead Trail will be removed, including at 143 Street, existing service roads and existing business accesses.

  • One-way service roads will be built on the north and south sides of Yellowhead Trail to provide access to businesses and properties.

Project Update - March 2021

Construction of the Yellowhead Trail Freeway Conversion between 156 Street to St. Albert Trail begins this spring. Work will take approximately 3 years to complete and will include closing existing intersections at 149 Street and 142 Street, removing direct access points to Yellowhead Trail and adding one-way service roads.

Pre-construction activities are scheduled to start in early April including the selective removal of some trees and shrubs along the green space near the noise wall for utility relocation. Pre-construction work is scheduled to be complete by mid-April and road construction is anticipated to begin this spring.

About the Project Area

The concept plan for this segment of Yellowhead Trail was developed after an extensive public engagement process from 2012 to 2014. The public provided feedback, which contributed to the concept plan that was presented to City Council in October 2015. More information about the public and stakeholder engagement in the Concept Phase can be found in the Program History.

Dry Pond

Based on evaluations of the existing stormwater system in the area, a new dry pond near 142 Street will be needed to reduce flooding. Engineering design is currently underway to confirm the size and location of the pond.

Noise Wall Replacement

As part of the 156 Street to St. Albert Trail project, a noise study and a condition assessment of the existing noise wall on the south side of Yellowhead Trail, between 142 Street and St. Albert Trail, have been completed. The wall is in poor condition and near the end of its service life. 

With the upcoming road construction along this section of Yellowhead Trail, it is an ideal time to replace the decades-old wall. Engineering design is underway for the new wall, which will be approximately the same height as the one there today.

Project Timeline


Construction begins


Design: we completed the engineering design for this portion of Yellowhead Trail


Development and refinement of options

156 Street Project History

Fall 2020 Engagement

Your input matters.

The City invited you to explore the design and share your feedback through Engaged Edmonton in October 2020. Your valuable feedback will be used to advise the preliminary design for the project due to start construction in 2021.

Reference Materials:
Project Update - October 2020
Westbound Yellowhead Trail changes
Eastbound Yellowhead Trail changes
Engaged Edmonton: Guestbook and Questions for the Project Team

Welcome Video: Project Overview
Travelling Eastbound
Travelling Westbound
Crossing Yellowhead Trail Southbound
Crossing Yellowhead Trail Northbound
Dovercourt and Sherbrooke Residents

October 2015 - Final Concept Plan

The final concept plan was presented to the Transportation Committee on October 7, 2015.

January 2015 - Project Update

The City focused on refining the preferred concept plan for Yellowhead Trail at 149 Street. The preferred concept includes one-way service roads parallel to Yellowhead Trail on the north and south sides. There is no connection proposed for 149 Street across Yellowhead Trail. The City will evaluate the changes that will be required to the surrounding road network to address changes in travel pattern as a result of the proposed plan.

January 2014

The City completed the final stages of a significant public engagement process that resulted in the development and refinement of a preferred option for freeway operation of Yellowhead Trail at 149 Street.

Public Involvement Report
The public engagement process included an Open House in June 2012 with a second open house in September 2013, 11 key stakeholder meetings, discussions with internal and external stakeholders such as CN Rail and utility companies, information bulletins to the community and the establishment of a Stakeholder Input Group (SIG).

This group of area stakeholders worked with City planners to develop ideas for converting Yellowhead Trail at 149 Street to a freeway operation, while retaining reasonable access to the adjacent businesses and the Dovercourt community. The stakeholder group helped to identify and develop:

  • Issues and constraints
  • Evaluation criteria and their relative weighting
  • Interchange and preferred access arrangements

Over the course of several workshops, the stakeholders helped to evaluate and reduce the total number of alternatives.

After significant development and evaluation of alternatives, the City arrived at a recommended configuration for the area based on input received from internal and external stakeholders, as well as Transportation Committee.

This preferred option includes one-way service roads parallel to Yellowhead Trail on the north and south sides. There is no connection proposed for 149 Street across Yellowhead Trail.

September 2013 - Public Meeting

On Tuesday September 17, the City of Edmonton hosted a public meeting to provide information on the recommended concept for free flow operation of Yellowhead Trail at 149 Street.

During the Open House, the public were invited to view the presentation boards and maps, ask questions of our project staff and pick-up project information material.

July 2013 – Transportation Committee

Two freeway options were presented to City Council on July 10, 2013; Freeway Strategy A which includes a ¾ diamond, grade separated interchange and Freeway Strategy B that which includes one-way service roads with right-in/right-out access north and south of Yellowhead Trail as well as improvements to parallel routes on 128 Avenue, 123 Avenue and 124 Avenue.

Presentation to the Transportation Committee of Council
Strategy Option A
Strategy Option B (Preferred Strategy)
Council Report

October 2012 – Project Update

An information bulletin was mailed out to community groups and businesses adjacent to the intersection . The bulletin provided an update on feedback received during the June 2012 Open House and requested comments or suggestions from the public.

June 2012 - Public Open House

A public Open House was held in June 2012 to introduce the project and provide background information. Attendees had the opportunity to learn more about the project and provide comments. Thanks to residents and community stakeholders who attended the June 13, 2012 meeting on the 149 Street Interchange at Yellowhead Trail.

Project Fact Sheet

Open House Overview Presentation – June 2012

Yellowhead Trail Is Changing

Stay informed with program updates and opportunities to have your say in shaping the new Yellowhead Trail.

Public Engagement

The City values public input and recognizes its importance in identifying the needs of all Yellowhead Trail road users, area residents and businesses. Each segment of the Yellowhead Trail Freeway Conversion Program is being built to balance the roadway requirements with community, business and commuter needs.

Please contact us with your 156 Street to St. Albert Trail questions by emailing

For More Information

Yellowhead Trail Freeway Conversion




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