Aerial view of Stage 3 of Terwillegar Drive Expansion

Stage Three includes road widening, Terwillegar Drive and Anthony Henday Drive Interchange upgrades, dedicated transit lanes and a shared-use pathway.

Project Update - Spring 2024

The Province of Alberta announced additional funding as part of their 2024 budget to complete Stage Three of the Terwillegar Drive Expansion program. This stage will include various upgrades to ensure the area can accommodate all users safely and efficiently, now and in the future. Site preparations are expected to begin in late 2024, with construction anticipated for 2025.


Key Upgrades in Stage Three:

  • Terwillegar Drive and 170 Street will be widened, and the interchange at Terwillegar Drive/170 Street will be improved to better handle traffic flow.
  • A new pedestrian bridge will be built across Anthony Henday Drive, providing a safe route for pedestrians and cyclists.
  • Matching those in Stage One, new transit lanes will be added to improve public transportation.
  • A partial cloverleaf interchange will be built, including a new northbound bridge and loop ramps. This will improve access from Terwillegar Drive/170 Street to Anthony Henday Drive and handle future traffic demands.

Changes to Pathway Plans

Based on technical requirements, safety considerations, and feedback from community engagement in early 2022, the shared pathway will now be separate from the Terwillegar Drive roadway and interchange.

A new pedestrian bridge will be constructed over Anthony Henday Drive between Terwillegar Drive and Rabbit Hill Road. This bridge will connect the recently completed Stage One shared pathway with Ambleside, east of Currents of Windermere. This is a change from the initial design shared in 2022.

What We Decided Report

This report highlights what we heard during the Stage Three concept design engagement phase (April/May 2022) and what was incorporated into the preliminary design.