Truck driver escapes rollover on Kwinana Fwy A TRUCK driver has escaped serious injury after the semi-trailer he was driving flipped onto its side on Kwinana Fwy overnight. The double trailer jack-knifed while turning onto the on-ramp of the Kwinana Fwy off Anketell Road at about 8.30pm. The truck was carrying 23 tonnes of cement dust when the front trailer and driver's cabin flipped. The driver suffered a small cut above his right eye which did not need treatment. The overturned trailer had to be cut free from the rear trailer and was shifted back onto its wheels by a heavy recovery vehicle. Police said speed could have been a factor in the crash as there was a 30m skidmark on the road. The accident blocked the on-ramp for several hours. Main Roads will be assessing the impact of the spilled cement dust on Monday.