Driver ejected from vehicle, passenger seriously injured in Deerfoot Trail crash

Emergency crews respond to a single-vehicle crash on Deerfoot Trail on Sunday, Aug. 17, 2025.

Calgary police say speed is believed to be a factor in a crash on Deerfoot Trail on Sunday that seriously injured two people.

The single-vehicle crash involved a 2010 Shelby Cobra and happened in the intersection with Seton Boulevard at 1:25 p.m.

Police say the driver was travelling southbound on Deerfoot at the time.

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“As the vehicle approached the overpass for Seton Boulevard S.E., the lanes reduced, the vehicle began to travel on the righthand shoulder of the roadway,” said a Monday news release.

“The vehicle then struck a temporary sign for road construction, before rotating and hitting the cable fence separating traffic from the Seton Boulevard S.E. ramp.”

The vehicle then struck a concrete wall and came to a rest on the south side of the overpass.

The driver, a man in his 50s, was ejected from the vehicle and suffered life-threatening injuries.

A passenger, a man in his 30s, was taken to hospital with serious injuries.

Investigators don’t believe the driver was impaired.

Anyone who witnessed the crash or who has dash-cam footage is asked to call police at 403-266-1234.

Tips can also be submitted anonymously through Crime Stoppers.