The Opening of the Sydney Harbour Bridge By AyeshaC Mar 26, 1925 Foundation Stones Laid of southern abutment tower 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 Aug 20, 1930 Flags Are Added To Top Jun 1, 1931 Deck Was In Place Jan 15, 1932 Last Stone Of The North-West Pylon Was Set Mar 19, 1932 Opening of the Harbour Bridge