Construction began in May 2023 and is anticipated to be completed by Fall 2025. 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
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:
August 28, 2025: Alberta Transportation has shared an update about upcoming traffic changes at the Highway 1A/22 Interchange. Please see the details below to plan ahead and stay informed.
Key dates and changes
Starting around August 28, 2025:
New roads open:
- Eastbound HWY 1A to northbound HWY 22 traffic will route through the east roundabout.
- Re-aligned lanes on HWY 22 will open for traffic in both directions.
- New exit ramp for southbound HWY 22 to the west roundabout will shift to a new temporary alignment.
Closures:
- The temporary roundabout will be closed.
- Highway 22 Northbound access from west loop ramp will be closed.
What you need to know:
- These traffic changes will be implemented in the evening on Thursday, August 28, weather permitting.
- These changes are part of the final phase of interchange work, with full completion expected in late 2025.
- Expect new routing and traffic shifts, drive with caution and follow all signage.
We appreciate your continued patience as this major project progresses.
Please drive with care, follow signs, and expect short-term adjustments as crews work to improve long-term traffic flow in the area.
📞 Project team: 403-472-4408
📧 Email: hwy1a22@islengineering.com
