Construction began in May 2023 and is anticipated to be completed by spring 2026.
This project includes:
- Expanding Highway 1A from two to four lanes (2 lanes in each direction) from just west of Highway 22 to 6th Avenue (east of Big Hill Creek).
- Two new bridges on Highway 1A over Big Hill Creek
- Replacing the Highway 22 CP Rail overpass over Highway 1A with a new larger overpass structure
- New interchange ramps and roundabouts connecting highways 1A and 22 as part of the interchange
View a rendering of the interchange
Questions?
Email hwy1a22@islengineering.com
Throughout construction, Cochrane Protective Services are engaged in regular project updates with the contractor and Alberta Transportation to ensure that emergency access is maintained for all communities as public safety is a top priority.
Alberta Transportation updates
February 27, 2026: Interchange update: Sunset intersection
Alberta Transportation and Economic Corridors has provided the following update:
Temporary traffic changes are coming to the Hwy 22 & Sunset Blvd intersection next week, as crews install new traffic lights.
March 2–4, 2026 (9 a.m. – 3 p.m.)
- Southbound right lane closures through the intersection
- Westbound dual left-turn lane reduced to one lane
- Expect minor delays during daytime hours
March 5, 2026 (9 a.m. – 3 p.m.) – Expect delays with flagger-controlled intersection
- Traffic lights will be turned off
- The intersection will be controlled by flaggers
- Lane closures will be in place in all directions
Speed limit will be reduced to 30km/hr during construction.
March 5 will see the most disruption as crews switch over to the new traffic light system.
Remember to plan ahead, allow extra travel time and follow all posted signage and directions from crews to help keep everyone safe.*Please be advised that project times can change due to weather.
More info: https://www.cochrane.ca/projects-plans-development/capital-projects/hig…
Project team: 403.472.4408
Email: hwy1a22@islengineering.com
January 15, 2026: Interchange update – Pedestrian tunnel opening
Alberta Transportation has shared that the pedestrian tunnel under Highway 22 opened on January 16, 2026. The tunnel includes interior lighting to improve visibility and safety for users.
Line painting is being touched up in various places, remaining permanent line painting will take place in the spring. Speed limits are also being adjusted, with the remaining 30 km/h sections being removed. Please continue to drive with care and follow posted signage.
