Auckland Harbour Bridge truck crash: Unlikely suspect in mishap that caused two weeks of traffic chaos 27 Apr, 2021 02:52 AM 3 minutes to read A look at the recent death toll on New Zealand roads. Video / Nathan Meek RNZ Niwa scientists have found the Auckland Harbour Bridge itself helped increase wind speeds to a point where trucks toppled over. Part of the bridge had to be closed for repairs for more than two weeks after two trucks fell over in high winds in 2020. The wind gust measured 127km/h at the top of the bridge arch. At the time, Niwa scientists had been operating a weather forecasting model known as the Auckland Model to predict wind shifts in the Hauraki Gulf, so scientists Drs Richard Turner and Stuart Moore and modeller Amir Pirooz wondered how accurately it could also have predicted the high winds on the bridge.