UPDATED
A rolled pickup and trailer caused major delays for evening rush hour along Highway 2 near Blackfalds on Friday.
Traffic came to a halt in the northbound lanes before the Blackfalds overpass around 4:30 p.m., according to Alberta 511.
Drivers are heading to Sylvan Lake and Blackfalds to avoid the mess.
NB QEII before Blackfalds overpass jackknifed semi. Expect delays. (4:33pm) #ABRoads
— 511 Alberta (@511Alberta) September 7, 2018
This story was updated to clarify that the collision involved a truck and trailer, not a semi tractor as originally believed.