Sydney Harbour Bridge By __courtney Period: Jan 1, 1923 to Dec 31, 1932 Opening Of The Sydney Harbour Bridge Jul 28, 1923 The Harbour Bridge was first started Mar 26, 1925 Foundation stones of southern abutment tower laid Oct 26, 1928 Construction of the main arch begins Nov 26, 1929 Erection of a record tonnage of steel on one day – 589 tonnes Aug 19, 1930 Main arch joined Jan 15, 1932 Last stone set in Pylons Jan 21, 1932 Last rivet driven in Mar 19, 1932 Road declared open for traffic