Highway 2 Interchange (Sturgeon County)

Overview

The intersection of Highway 2 and Cardiff Road in Sturgeon County is a busy roadway crossing, with approximately 15,000 vehicles travelling through the area daily. Growing development in Sturgeon County makes Highway 2 a major north-south corridor.

Current intersection design and use impacts safety and traffic flow in the following ways:

• The intersection is frequently congested with drivers waiting to turn left from Cardiff Road, heading south to St. Albert, requiring them to travel across 2 lanes of high-speed traffic.
• Large commercial and semi-trucks also use the intersection, further impacting traffic flow.

Key improvements

The new interchange will improve traffic safety at the current intersection by introducing:

• an extension of Cardiff Road up and over Highway 2, enabling north-south and east-west traffic to flow without interruption, and allowing westbound drivers on Cardiff Road to continue south to St. Albert without having to stop or cross an opposing lane of traffic
• a roundabout on Cardiff Road at 100 Street to accommodate more efficient traffic flow and reduce collision risk

Map of proposed Highway 2 and Cardiff Road Interchange Project

Benefits

A grade-separated design and roundabout are both safer methods of traffic control than the current at-grade, signalized intersection. By enhancing the transportation infrastructure in Sturgeon County and the Town of Morinville, these improvements will:

• improve traffic safety by reducing collision risk
• reduce bottlenecks and congestion by facilitating more continuous and efficient traffic flow
• increase capacity and support regional economic growth through better accommodation of large trucks and heavy equipment

Timeline

• May 2026 (tentative) – Construction is expected to begin.
• Fall 2027 – The interchange is anticipated to open to traffic.
• Fall 2027 to Summer 2028 – Site cleanup and project completion

Project details

The project includes:

• a 2‑span bridge at Cardiff Road over Highway 2
• westbound to southbound loop ramp, northbound and southbound exit, and entry ramps for access onto and off of Highway 2
• a single-lane (local road) roundabout at the 100 Street and Cardiff Road intersection
• Cardiff Road improvements: adjustments within interchange footprint
• drainage work: ditch realignment and 2.1 metre culvert crossing, east of Highway 2
• west service roads integrated with the interchange

Engineering for the proposed interchange has been completed, including:

• realignment of 100 Street to the east to safely accommodate a roundabout at Cardiff Road and 100 Street (2011)
• temporary work completed around the interchange site to facilitate traffic flow during interchange construction (2011)
• installation of the current traffic signal at the intersection (2014)

Public engagement

A public open house information session for this project was held on Tuesday, January 20, 2026, at the Morinville Community Cultural Centre.

• View the information session display boards

Resources

• Highway 2 and Cardiff Road Interchange (3D flythrough)

Contact

Connect with Alberta Transportation and Economic Corridors for more information about the Highway 2 and Cardiff Road Interchange Project:

Hours: 8:15 am to 4:30 pm (open Monday to Friday, closed statutory holidays)
Phone: 780-968-4210
Toll free: 310-0000 before the number (in Alberta)
Email: [email protected]