Traffic on Pinkie Road is restricted following a serious two-vehicle crash Monday afternoon.White Butte RCMP said a 17-year-old boy driving a pick-up truck collided with a semi hauling gravel just south of Dewdney Avenue.The teen was rushed to hospital with life-threatening injuries. The driver of the semi was unharmed.A driver in the area told 980 CJME police were detouring vehicles to 13th Avenue and Hill Avenue.Traffic is expected to be restricted for several hours while RCMP collision reconstructionists are on scene.