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The Sydney Harbor Bridge

The Sydney Harbor Bridge. The Origin and history. When the Sydney Harbor Bridge was opened by the Premier of New South Wales, Mr. Jack Lang on the 19th March 1932, the Harbor Bridge was one of the greatest engineering masterpieces of its time

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The Sydney Harbor Bridge

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  1. The Sydney Harbor Bridge

  2. The Origin and history • When the Sydney Harbor Bridge was opened by the Premier of New South Wales, Mr. Jack Lang on the 19th March 1932, the Harbor Bridge was one of the greatest engineering masterpieces of its time • The bridge joined the city of Sydney (at Dawes Point) to the North Shore (at Milsons Point). As many as 800 families living in its path were displaced without compensation.

  3. The Construction of the Sydney Harbor Bridge • The approach spans were erected first, then work began on the main arch. Two half-arches were built out from each side of the Harbour. Steel members were transported on barges into the Harbour and hauled into position with creeper cranes mounted on the arches, which built the Bridge out before them as they inched forward. • The girders are made from steel (79% imported from England and 21% from Australian sources). The pylons are made of concrete faced in granite, which was quarried near Moruya, 300km from Sydney. Around 6 million rivets and 52,800 tonnes of steelwork and 17,000 cubic metres of granite have gone into the construction of the Bridge.

  4. Facts about the Sydney Harbor Bridge • The highest point of the arch is 134 meters (440 feet). The pylons are 89 meters (292 feet) high. The Bridge was the highest point in Sydney Australia until 1967. • The longest span of the Bridge is 503 meters (1650 feet). The total length is 1.15km (3770 feet). • The Sydney Harbor Bridge is the fourth longest single-span steel arch bridge in the world, behind Bayonne Bridge in New York, The New River Gorge Bridge in West Virginia and the longest which is The Lupu Bridge in Shanghai. • The Bridge is 49 meters (161 feet) wide, making it the widest single-span Bridge in the world. • The weight of the steel arch is 39,000 tons

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