Waupaca County Sheriff’s Department investigated a two vehicle accident on Highway 161 and Swamp Road in the town of Union. According to the Press Release, a 62 year old woman failed to yield the right of way to a pickup truck operated by a 22 year old man. The man was unable to stop for the vehicle and collided with her. The man was treated and released while the woman was airlifted by Theda Star Helicopter with non life threatening injuries. The incident remains under investigation by the Waupaca County Sheriff’s Department.