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
October 17, 2025: 🚧 Traffic Update: Highway 22 & Highway 1A Interchange 🚧
Alberta Transportation has shared details about upcoming lane realignments and ramp openings as part of the Highway 1A/22 interchange project.
Key dates & work details
Friday, October 17
• Southbound Hwy 22 realignment: Traffic will shift onto the new, permanent southbound lanes near the interchange.
• New ramp opening: The permanent exit ramp from southbound Hwy 22 to Hwy 1A will open.
• Detour closures: Temporary detour ramps and the old roundabout will be fully decommissioned and removed.
Overnight, October 20 & 21 (tentative) (7 p.m. – 7 a.m.)
• Crews will install two culverts across Hwy 1A west of the interchange.
• Expect single-lane alternating traffic and local detours around the work site.
• Flaggers will be on-site to direct drivers; delays are expected.
• Please slow down and follow signage in the area.
October 18
• Northbound Hwy 22 realignment: Northbound lanes will shift over the new bridge following paving on October 18.
October 19-20
• Toplift paving along Highway 22 between the Glenbow/Quigley Drive intersection and the new bridge
• Expect various temporary traffic shifts around the work areas
• Please slow down and follow signage & flaggers in the area.
October 23-25 (tentative)
• Toplift paving at the Highway 22 & Sunset Blvd Intersection
• Expect various temporary traffic shifts around the work areas
• Please slow down and follow signage & flaggers in the area.
Late October
• Westbound Hwy 1A realignment: Traffic will shift onto the new westbound lanes.
What you need to know
• Work is scheduled overnight to reduce daytime congestion.
• Expect short-term noise, light and minor delays during overnight work.
• All timelines are weather dependent.
• Please drive with caution and obey posted signage.
🔗 More info: Highway 1A/22 Interchange | Town of Cochrane
📞 Project team: 403.472.4408
📧 Email: hwy1a22@islengineering.com
