Looks can be deceiving. To get an idea of the massive size of the Opera House, note that
the 'arch span' of the bridge is 1650 feet or 1/3rd mile (503m) and the height 440 feet (135m) to top of arch.
The deck, of 8 lanes, 2 railway lines, a cycleway, and a foot path, sits 160 feet (49m) above mean water level