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
June 15, 2026
Alberta Transportation and Economic Corridors (ATEC) has provided the following update on construction for the Highway 1A / 22 Interchange project.
ATEC has monitored operations of the new traffic signal at Sunset Blvd for a period of time and can confirm that the traffic signal will be modified. The northbound right turn will no longer be controlled through the traffic signal, but instead will have a small corner island and yield sign, similar to other major intersections in Cochrane and the Calgary region. With this change, drivers must yield to opposing traffic from the southbound left turn when present, but can otherwise proceed at all other times.
Construction update:
- Beginning June 15, crews will start work to convert the northbound Highway 22 to Sunset Boulevard right turn from a signal-controlled turn to a yield-controlled turn.
- Remaining line painting throughout the project site is scheduled to resume the week of June 15.
- Line painting will also include a realignment of the westbound lanes on Sunset Boulevard approaching Highway 22. This change will allow both westbound lanes to feed directly into the dual left-turn lanes, reducing the need for drivers to merge into a single lane before the intersection.
- Most remaining construction activities are expected to be completed within the next three weeks, weather permitting.
- Some landscaping work will continue into July as weather conditions allow.
Localized lane closures, speed reductions and construction access activities will continue for several more weeks. Drivers are asked to drive with caution and obey posted signage.
More info: https://www.cochrane.ca/interchange
Project team: 403.472.4408
Email: hwy1a22@islengineering.com
