Jodi Pauline Hewitt, 29, died after the car in which she was a passenger rolled over east of Teslin around 7 p.m. Wednesday.
The driver, a 30-year-old woman from Whitehorse, was found alive by emergency crews and police — upside down, her arm pinned between the car and the ground.
She was medevaced to Whitehorse General Hospital with non-life-threatening injuries.
At about 5 a.m. Thursday morning, another car left the road at the same spot. It also rolled several times.
The driver and passenger of the second car were treated at the scene for minor injuries.
RCMP are investigating whether road conditions, speed or driver error were contributing factors in the accidents.
They do not believe that alcohol was a factor in either incident.
Stretches of the highway in the area are under construction and covered with loose gravel.
The department of Highways and Public Works has posted additional construction and speed-reduction signage in the vicinity, said communications director Tim Hierlihy.
They have designated the accident patch as a “hazard.”
“It’s still under RCMP investigation right now, so the department has no comment,” said Hierlihy.
“Our message to the public is just to watch out for those (construction) signs.”
Police are asking motorists to wear seatbelts, and to slow down in construction zones and wherever else they encounter poor road conditions.