‘Excessive speed’ believed a factor in deadly Stoney Trail crash: Calgary police

One person was killed and several others were injured in a multi-vehicle crash on Stoney Trail on Sunday, June 29, 2025.

Calgary police say excessive speed is believed to be a factor in a deadly crash on Stoney Trail on Sunday.

The collision happened in the northbound lanes, south of the Bow Trail interchange, just after 6 p.m.

Investigators say a southbound Toyota 4 Runner left the road, travelling across the grassy median and entering the northbound lanes of Stoney Trail, where it rolled before being hit by a northbound Dodge Caliber.

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The driver of the 4 Runner, a 25-year-old man, was ejected from the vehicle. He hit a large overhead directional sign and was pronounced dead at the scene.

The driver of the Caliber, a 25-year-old woman, suffered serious, life-threatening injuries, while a passenger in the vehicle was taken to hospital with minor injuries.

The collision prompted the complete closure of Stoney Trail.

Both directions reopened just before 3 a.m. on Monday.

Excessive speed is also believed a possible factor in a crash on Stoney Trail two days earlier that killed a 16-year-old boy.