Thousands of people are expected to walk across the new Fremantle traffic bridge today, as it opens to the public months ahead of schedule, at double the initial estimated cost. . newsiviewlistenLoading ABC NewsNews HomeFremantle traffic bridge opens with community celebration amid cost blowoutShareShare articleFremantle traffic bridge opens with community celebration amid cost blowoutBy Nicolas Perpitch. Thousands have attended the opening of the new Fremantle traffic bridge.