Sydney Harbour Bridge run by two children from the nearby Fort Street Boys' and Girls' schools. After the official ceremonies, the public was allowed to walk across the bridge on the deck, something that would not be repeated until the 50th anniversary celebrations. Estimates suggest that between 300,000 and one million people took part in the opening festivities, a phenomenal number given that the entire population of Sydney at the time was estimated to be 1,256,000. There had also been numerous preparatory arrangements. On 14 March 1932, three postage stamps were issued to commemorate the imminent opening of the bridge. Several songs were
Sydney Harbour Bridge paint, and repainting the of steel below the deck. Workers operated from self-contained platforms below the deck, with each platform having an air extraction system to filter airborne particles. An abrasive blasting was used, with the lead waste collected and safely removed from the site for disposal. Between December 2006 and March 2010 the bridge was subject to works designed to ensure its longevity. The work included some strengthening. Since 2013, two grit-blasting robots specially developed with the University of Technology, Sydney have been employed to help with the paint stripping operation on the bridge. The robots, nicknamed Rosie and