Edmonton’s long-running Terwillegar Drive upgrade has reached another milestone this fall, with city crews preparing to move into the next phase of construction aimed at easing congestion for tens of thousands of southwest commuters.
The $300 million, multi-year project will transform Terwillegar Drive into a full expressway corridor between Whitemud Drive and Anthony Henday Drive. Once complete, residents in Terwillegar, Windermere, MacTaggart, Magrath Heights and neighbouring communities will see new interchanges, expanded lanes and improved active transportation links.
What’s happening now
City officials said work remains on schedule for the twinning of the main corridor between Rabbit Hill Road and Windermere Boulevard, with grading and underground utility work largely complete. Paving on several sections is expected to continue through the fall, weather permitting.
Construction is also advancing on:
- the new 40 Avenue interchange, which will replace the current signalized intersection
- bridge expansions near Whitemud Creek to improve traffic flow and safety
- shared-use path connections designed to link neighbourhoods to destinations such as Terwillegar Recreation Centre and the Riverview area
Traffic impacts
Drivers should expect ongoing lane reductions, temporary closures and reduced speed limits through the fall and winter. The city said most major detours will be limited to off-peak hours, though delays are still likely during the morning and afternoon rush.
Transit users may see minor schedule changes as buses adjust to construction staging. Edmonton Transit Service is directing riders to its real-time tools for updated route information.
Looking ahead to 2025-26
The final phase of the project is slated for 2025, including full road widening, interchange completion and final paving. The city continues to target late 2026 for substantial completion of the Terwillegar corridor, though timelines remain dependent on weather and contractor availability.
Once finished, the upgraded roadway is expected to:
- reduce travel times between neighbourhoods and major routes
- improve safety by eliminating high-collision intersections
- support planned residential and commercial growth across southwest Edmonton
A corridor reshaped
Terwillegar Drive carries more than 40,000 vehicles daily and has been one of the city’s most congested routes for more than a decade. Residents have long pushed for improved traffic flow and more reliable access to key connections such as Anthony Henday Drive, Rabbit Hill Road and Windermere Boulevard.
City officials said this phase of construction marks the halfway point of the largest transportation investment in southwest Edmonton since the Henday opened.
SouthwestEdmonton.today will continue to follow construction progress, detours and neighbourhood impacts as work continues.
