Sydney Harbour Bridge
Sydney Harbour Bridge (GPS: -33.85174, 151.21108) is one of the most famous bridges in the world. This icon of
Sydney crosses the
Sydney Harbour carrying vehicular, rail and pedestrian traffic between the Sydney Central Business District and the North Shore.
Although the Sydney Harbour Bridge was built over 75 years ago - it celebrated its 75th anniversary on 18 March, 2007 - it is still one of the widest long-span bridges in the world and one of the highest steel arch bridges. The top of the Sydney Harbour Bridge towers 134 metres (429.6 feet) above the water of Sydney Harbour.
The two ends of Sydney Harbour Bridge are located at Dawes Point in The Rocks area, and Milsons Point in North Shore area. There are six lanes of road traffic, another two converted from former tram tracks, two railway tracks, a footpath on the eastern side (facing the Sydney Opera House), and a bicycle track on the western side.
39,000 tons of steel was used for the Sydney Harbour Bridge. Most of it came from Middlesborough in the northeast of
England while the rest came from Australia itself. The rivets were made in
Lancashire, England while the granite used came from Moruya in
New South Wales.
Night scene of the Sydney Harbour BridgeSource: https://commons.wikimedia.org/wiki/File:1ASYDHARBOURBRIDGE.JPG

Adam J.W.C

The idea of building a bridge across Sydney Harbour came as early as 1815, when Australian architect Francis Greenway proposed it. However, nothing came about until 1890, when a royal commission determined that the heavy ferry traffic across the harbour is best relieved by a bridge. Designs and proposals were requested in 1900, but a formal proposal was only accepted in 1911. The chief engineer appointed to the task was Dr John JC Bradfield, who travelled extensively to look at other bridges of the world. He opted for a single arch shape, based on New York City's Hell Gate Bridge. He completed the design in 1916, but the project was delayed till 1922 because of World War I.
The construction of the Sydney Harbour Bridge coincided with the construction of Sydney's underground railway, known today as the City Circle, and so the bridge design took that into account. The rail tracks on the bridge would link to the underground Wynyard railway station.
View of the Sydney Harbour Bridge at duskSource: https://commons.wikimedia.org/wiki/File:Sydney_harbour_bridge_new_south_wales.jpg

Adam J.W.C.

Tenders for building the bridge was called in 1923. The official commencement ceremony was held on 28 July 1923. The construction of the bridge proper would only start five years later, in 1928, as a few years were needed to build the abutments and approach spans. The two halves of the arches were linked together for the first time on 19 August 1930.
The Sydney Harbour Bridge was formally opened on 19 March 1932, in a ceremony attended by Sir Philip Game, the Governor of New South Wales and Jack Lang, the Premier of New South Wales.
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