Drivers carrying tall loads through Leduc, Alberta, are being warned to take an alternate route after a critical over-dimensional warning light went out of service on Jan. 21, 2026. The automated system on northbound Highway 2 is designed to detect commercial vehicles that exceed the height limit for the Highway 2A overpass; with the alert offline, authorities say there is an increased risk of bridge strikes.
According to a 511 Alberta advisory, any load taller than 5.0 metres must exit the Queen Elizabeth II Highway before reaching the underpass. Drivers and dispatchers are being advised to use the Highway 2A exit (Exit 516) to bypass the height-restricted structure until the detection system is repaired. Readers should check 511 Alberta for updates, as live alerts are updated regularly.
Alberta Transportation’s vertical-clearances listing shows the northbound clearance at the Highway 2A overpass south of Leduc as 5.0 m (southbound 5.1 m), which is why the site is closely monitored. AMA Road Reports maintains traffic cameras for the ‘Hwy 2: South of Hwy 2A overpass near Leduc’ location, which show the overpass and its approaches — the same stretch of roadway where the height-detection sensors are installed.
Officials are urging extra caution: bridge strikes can cause serious structural damage, significant traffic disruption and safety risks. Under changes announced in 2023, carriers can face fines of up to $15,000 for a first offence and potential suspension of safety certificates for striking an overpass. Authorities say the advisory remains in effect until further notice.
