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
May 6, 2026: Alberta Transportation and Economic Corridors has provided the following update on construction for the Highway 1A / 22 Interchange project.
Top lift paving (final asphalt layer)
- Paving is expected to start Monday, May 11, and is expected to last two weeks (weather permitting)
- Paving on westbound Highway 1A in the downtown area will require fully restricting access to the Cochrane Ranche parking lot and businesses on 2nd Street for part of one day. The date of this work is still to be confirmed and will be scheduled to minimize access impacts during business hours. The contractor is communicating directly with affected businesses.
- Paving Highway 1A at the west project limits will require single-lane alternating traffic. Work will be scheduled at night to minimize traffic disruption.
- Please watch for message boards on site for specific dates and paving locations
Other work
- Spring construction is now fully underway
- Ongoing activities taking place throughout the site include gravel placement, concrete work, topsoil placement and landscaping, guardrail installation, bridge finishing, streetlighting, line painting and general site clean-up.
- Guardrail installation on the west side of Highway 22 near Sunset Blvd will require closure of the second left turn lane out of Sunset Ridge for approximately 3 weeks, tentatively beginning Monday, May 11.
- The contractor anticipates that work on the project will be substantially completed by the end of June, weather permitting.
Variable lane closures, speed reductions and construction access activities will occur throughout the project site over the next two months. Drivers are asked to drive with caution and obey posted signage.
