Happy Birthday to the Sydney Harbour Bridge! A marvel of modern engineering, the Sydney Harbour Bridge was officially opened on the 19th March 1932.
The idea for a bridge linking the north and south of Sydney went back to the 1800s, with the earliest recorded drawing of a bridge across the harbour being produced in 1857. After initially calling for designs and tenders in 1900, the NSW Parliament finally passed legislation giving the go ahead for construction of the bridge in 1922. In March 1924, the contract was awarded to English company Dorman Long & Co Ltd.
The general design was produced by notable engineer Dr John Bradfield (who gave his name to Sydney's Bradfield Hwy and Bradfield Park as well as the federal electorate of Bradfield on Sydney's North Shore), with more detailed design undertaken by consulting engineers Sir Ralph Freeman and G.C. Imbault.
It took an estimated 2,500-4000 workers 8 years to construct the bridge. These workers included engineers, surveyors, architects, blacksmiths, boilermakers, carpenters, concreters, stonemasons, riggers, crane drivers, painters and general labourers. Sadly 16 of these workers lost their lives while constructing the bridge.
The materials used included a staggering 53,000 tonnes of steel, mostly imported from England, stone and granite from the NSW South Coast and an estimated 6 million Australian-made rivets. This all came at a cost of approximately $4.2 million.
In 1932 the toll for crossing the bridge was 6 pence for a car (with 3 pence charged per adult passenger and a penny per child). The average daily number of cars crossing the bridge was just under 11,000.
Today the toll charged ranges from $2.50-$4 depending on the time of day, with an estimated 150,000 vehicles crossing the bridge every day. #anuarchives#onthisday#sydney#sydneyharbourbridge#bridge
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#Happy4th to all my American friends and a BIG thank you to all my fellow followers for wishing me a happy birthday much appreciated hope you all have a great one it's a beautiful evening in NYC for some city pics 😃