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:
September 29, 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.
Tuesday, September 30, 2025 – starting at 6 p.m. (approx. 2 hours)
- Highway 22 traffic will be realigned onto the west side of the new Highway 22 bridge, with all traffic moving into the future southbound lanes.
Early October (date dependent on progress):
- Highway 1A traffic will be transferred onto the eastbound side of the road.
- This shift will temporarily restrict left-hand turns out of the Historic Cochrane Ranche parking lot.
- Drivers exiting the Ranche will need to use the nearby roundabout to turn around if they are heading eastbound on Highway 1A.
What you need to know
- These changes mark another step toward substantial completion of the interchange this fall.
- All timelines are approximate and weather dependent.
Please drive with caution, follow signage and expect short-term adjustments as crews complete this phase.
📞 Project team: 403-472-4408
📧 Email: hwy1a22@islengineering.com
